40lb post! DH/FR Rigs around the 40lb mark! tips, pics, specs
- Thread starter bullcrew
- Start date
I've got a final exam to write in an hour, but after I'll return with some info.Exactly the point, 10.94 lbs!!!
My jedi is 8.25 (with axle) without shock, roco wc air is 530g so add 1.1/4 lb 9.5 and mine with bxr wc is barely sub 36lbs. If you got light xc stuff on a demo then thats the most irresponsible thing Ive seen.
Ding ding "Yes Id like a life/injury policy on him", Theres NO way to go that lightt without stupid light single plys, light xc rims, cranks that come with spandex and pedals.Just not going to happen relaibly! But parts list anywase Id be curious to see...
Still dont see it, I just looked and even with the ztr rims your maybe 100g lighter than 6.1s or 721s which are around 600g, your pedals are heavier than 363g (thats a pair twenty6) and even single ply chunders are atleast 800g.
If you take the frame difference 1.5lbs and then minus the .7lbs diffence between the jedi and yours fully built and it comes to approx 2.25 lbs difference in components and I just dont see that!
The only way it would be lighter with a bxr wc is if thats a coil totem which comes in at 6.5lbs and the air is 6.1 a bxr wc is 6.1 which is why I have to see a spec list. I have a bxr wc and a twenty6 stem as well so thats about as light as it gets!
No offense but Id seriousley try a 2nd scale before throwing it out there, I could go light xc parts and barely hit that weight adn my frames significantly lighter.
I thought you had a write up on the build!
I do, but with these constant non-believers shouting out, I must stand up and defend myself
I'm also no chump in the weight weenie game:
http://bb.nsmb.com/showpost.php?p=2079941&postcount=98
That weight is with tubes, full seatpost, heavy saddle, heavy bar, and a 5.8lb steel frame.
Here's a better pic:
http://bb.nsmb.com/showpost.php?p=2079941&postcount=98
That weight is with tubes, full seatpost, heavy saddle, heavy bar, and a 5.8lb steel frame.
Here's a better pic:
Theres no way its 35 in the pic, not a chance in hell!I do, but with these constant non-believers shouting out, I must stand up and defend myself
Like a funny guy said its probably cut in half, the side we see looks like a bike the other is the insides.
As far as the hardtail, yeah the fork is what 3.+lbs no shock or links single ply kendas small diameter etc...
I could see building a light HT, hell the frame alone is almost 5lbs off then the fork another 3 atleast tires another 1-1.5 rims atleast 100g per so another 1/2lb so theres 10lbs right off the bat then brakes etc...
No bash, single speed so no cassette, light weight cranks and probably a non lasting BB.
OH I get the joke canadian weight is like the return rate, .75 on the US lb!
Last edited:
Look closer at the parts.
Seat is a SLR ti
Thompson masterpiece seat post
light wheels -ZTR flows revolution spokes with 1000g tires run tubeless ?hubs??..hopes??
Juicy Ultimate brakes
Stylo cranks with a super light bash ring
The wheels are where the biggest difference is made. The front weighs 850g and the rear weighs 950g complete if built with hope pro IIs.
Seat is a SLR ti
Thompson masterpiece seat post
light wheels -ZTR flows revolution spokes with 1000g tires run tubeless ?hubs??..hopes??
Juicy Ultimate brakes
Stylo cranks with a super light bash ring
The wheels are where the biggest difference is made. The front weighs 850g and the rear weighs 950g complete if built with hope pro IIs.
Seems to me that you don't like being shown how to play the weight game.Theres no way its 35 in the pic, not a chance in hell!
Like a funny guy said its probably cut in half, the side we see looks like a bike the other is the insides.
As far as the hardtail, yeah the fork is what 3.+lbs no shock or links single ply kendas small diameter etc...
I could see building a light HT, hell the frame alone is almost 5lbs off then the fork another 3 atleast tires another 1-1.5 rims atleast 100g per so another 1/2lb so theres 10lbs right off the bat then brakes etc...
No bash, single speed so no cassette, light weight cranks and probably a non lasting BB.
OH I get the joke canadian weight is like the return rate, .75 on the US lb!
No I dont mind calling someone out as theres lighter builds then mine, Ive just seen way too much BS to accept light builds.
I accept mine and I can go lighter but it would not be DH worthy!
If someone posts a honda and says it has 800hp and goes 250mph but is running stock donut tires then yeah I will ask!
So your brakes are maybe 100g lighter than the foemula the ones, saddle maybe 50g, his wheelset is 1800 mine is right about 2k so 200g then unless you mean the tires were 1000g each set up mine were 950 and I run tubeless as well.
So ID still like to see a build spec.
Ive posted my fair share of component weights for my stuff and random stuff Ive gotten ahold of for others. Do I get upset that someone know there weights as well, No! I think its great, if you look you will not see a ton of posts in here from me bagging peoples claimed weights BUT you will see a bunch of me helping or just giving a big thumbs up to really nice builds.
I accept mine and I can go lighter but it would not be DH worthy!
If someone posts a honda and says it has 800hp and goes 250mph but is running stock donut tires then yeah I will ask!
So your brakes are maybe 100g lighter than the foemula the ones, saddle maybe 50g, his wheelset is 1800 mine is right about 2k so 200g then unless you mean the tires were 1000g each set up mine were 950 and I run tubeless as well.
So ID still like to see a build spec.
Ive posted my fair share of component weights for my stuff and random stuff Ive gotten ahold of for others. Do I get upset that someone know there weights as well, No! I think its great, if you look you will not see a ton of posts in here from me bagging peoples claimed weights BUT you will see a bunch of me helping or just giving a big thumbs up to really nice builds.
Last edited:
Bullcrew: I think you are just mad that someone beat your weight. Hahaha
Not really, I know of 5 or more builds lighter than the jedi! I learned alot from the others and thats how I built mine up!
Im not sore if I was I think I could afford to go lighter being as my frame is lighter to start off with.
If I posted my weight with no spec Id be called out on it, Hell Id call myself out on it with no spec.
I congradulate him on the weight, still want to see specs. I think most of my bike was built using the weights and spec recomendations from others.
Edited: I use my bike as reference its my starting point because I know my weights. Frame/fork weight is always the first obstacle after that we can tune everything from there relatively inexpensive.
Last edited:
470g per rim
Ill admit that 470g per rim is stupid light, 5.1s are 500g and fold over, 721s are 575g, 6.1s are 600g, 729s are 685g and then the 823s are well bullit proof!
I considered those and was told by them (stans) that my weight and non-style would kill them off yet others are having good luck with them.
So Im not going to bicker on rim choice if I thought I could get away with those Id have had them on already. Trasnscends article got me all excited a while ago to try em, that would drop strips, stans and rim weight off the jedi.
I considered those and was told by them (stans) that my weight and non-style would kill them off yet others are having good luck with them.
So Im not going to bicker on rim choice if I thought I could get away with those Id have had them on already. Trasnscends article got me all excited a while ago to try em, that would drop strips, stans and rim weight off the jedi.
Last edited:
Damn, yeah that would build a light wheel!
Thats pretty much as light as its going to get! I'm 235lbs so I dont get the choices for certain rims!
Was it on the new 88? If so it had to come in stuupid light!
That sucks no crash replacement, did they offer a deal of any sort aside of full retail?
XC wheels -awesome!
yeah they offered me a new frame for £1300 (about 1900 US i think)Was it on the new 88? If so it had to come in stuupid light!
That sucks no crash replacement, did they offer a deal of any sort aside of full retail?
Money i DEFINATELY dont have.
XC wheels -awesome!
as i said , 137lb's, you can get away with alot more!
That picture is hilarious
What i can see for giggles...
Gamut guide with what looks like a lightweight metal bash, guessing it saves 60-80g over the old LG1 w/taco setup
Rims (~100g each end over a 721)
Tires (guessing those Chunder's are ~1000g or so at a 2.35 so if you're running 3c's that's ~600g on the set)
Spokes / Nipples (Some room here as well)
Hubs, definitely some minor room here (AM Classic / Hope etc)
Cut Thomson Masterpiece post + SLR is lighter than the SDG setup
Tubeless setup ?
Bar - can't see
Brakes - ultimates
pedals - mag's with TI axle perhaps? ~300g
Stylo OCT cranks?
An easy 2lbs there at least
Last edited:
Hey J, I needed to ask you a ? about the nuke proof bars! Where and how much, did you like them, weight and feel????That picture is hilarious
An easy 2lbs there at least
I've been contemplating the deity and so forth but want something a little different.
I now see why you are frustrated or shocked at low bike weights........I'm 235lbs so I dont get the choices for certain rims!
At 235lbs you can't even consider using some of the weight weenie (WW) parts.
I like them. They've got a nice feel to them, are black, and the logo-ing isn't annoying or flashy. The only thing I don't like was that my set had the centering / logo area on crooked but that should be fixed they say in current production.
Got them through the guys at Hotlines (you can get them through Chainreactioncycles.com) for a pretty good price.
Weight should be up at - http://www.sicklines.com/weights
Nope realistic it sits sub 36 and wont go any further unless I compromise. I rode ladders, rocks, drops etc... If I just raced it Id go a lighter rim and save a bit there. I could at BEST and I mean literaly at BEST maybe get another 1 - 1.25lbs off the bike.
If all I did was race it Id rock those ztrs and save 260 there, lighter tire instead od 1050g go to a UST 950 so Id save another 200 there, then run a road cassette instead of a 11/34, no stans or strips, ace my bash boomerang, do his saddle and post and could be 34lbs +. Then do a 5 min run down the course to spend 5 hours in ER having them remove the bike from my @$$! LMAO!
Im already cooking up the next build, contacted the manufacturer and on the informed list as to when itll be ready. Ordering the new I9s next week, already have the forks till the 2010 stuff comes down the pipeline to me, called tyler (twenty6) and waiting for more pedals, stem and levers. Bobby will be back from germany in a month or so and have some bits for me as well.
Yes Im getting the new 09 jedi, it will be my main ride as always but the new one will be super stout and stupid light. IT WILL BE PIMP mainly!
just under 36!
Last edited:
Even with good technique and your weight I seriously doubt those rims are going to last. I'm a light rider and know a couple of lighter guys than me that ride smoother and still noone went 719. The only lightweight rim experiment I know ended very fast
Unless you are riding only smooth trails like aline
LMAO!
Hope you heal up quickly cause your bank account might not!
You can smell the account burning from there, damn prevailing winds. Just as long as the winds dont shift towards the wife!
I expect you understand the $ we pay to play more than anyone!
I think Im going to get the nukebars based on weight. They are 20g or so more than my 27s but extra reach.. Ill keep you posted to the new build as well as I come closer to getting the main 2 pieces.
Last edited:
I've run 719s on my All Mountain bike for the past year and have sent some serious lines. One small dent on one side of the rear rim. That's it. I run 2.35 single nevegals and tubeless with these rims. I'd run them on my DH bike if they weren't so narrow.Even with good technique and your weight I seriously doubt those rims are going to last. I'm a light rider and know a couple of lighter guys than me that ride smoother and still noone went 719. The only lightweight rim experiment I know ended very fast
Bullcrew, it's all in the details. I weigh 170lbs so I can run a few suspect parts like Stylo cranks and the Flow rims. However, everything else is no maintenance, full DH worthy. If I want to build this bike to be a bit more reliable, add 1 lb in the rims alone and another 100 grams for the cranks. That's about it.
LMAO!Bullcrew...I'm following you all over the internet
Hey like I said congrats on the build, Id have been rocking those rims but the guy at stans said "NO!" not a good idea.
Ive killed 729,(several) 6.1's, dps 32's, OH cant forget the single tracs they dies a gruesome death! LMAO really they looked like a car ran them over.
Nice build and look forward to the specs, again congrats!
says the guy with the midget sized Legend...
Fair enough, but if i catch you saying i told you so.....hehehe.Even with good technique and your weight I seriously doubt those rims are going to last. I'm a light rider and know a couple of lighter guys than me that ride smoother and still noone went 719. The only lightweight rim experiment I know ended very fast
For AM it is understandable but if you want to go fast sometimes you have to loose the flow and hit the ground hard and it's when the rims get hammered. Also I know a few dh trails that no matter how you are riding your rims will get some serious usage. But it may be me and the fact that I tend to make mistakes a lot.
Still I don't see why light guys brag about how ligt they can go. I'm 155 and I'd rather go 10lb of muscle up than 2lb of bike down.
OBB -
Hey... No update on that Demo yet? I really am curious to know how you achieved such a light build. I myself don't weigh more than 140lbs, geared up and am considering a Demo 7 as a DH bike.
Hey... No update on that Demo yet? I really am curious to know how you achieved such a light build. I myself don't weigh more than 140lbs, geared up and am considering a Demo 7 as a DH bike.
Well, with all this nonsense across Pinkbike and Ridemonkey, may as well blow my weight weenie load 
It's a bit of a story.
The Specialized Demo frame is an odd choice for a light build. Extra seatstays and some serious frame beef meant that I was starting with an almost 11 lbs frame set with a Fox DHX 5 and steel 500lbs spring.
On the flip side, Specialized has put some detail into the bike, such as a magnesium linkage plate that saves 200 grams over the aluminum version and some machining of material here and there. Paint adds up to 200 grams so clear/raw anodized ftw. Last, a 135mm rear end with a 73mm BB shell means lighter parts choices.
The Specialized Chunder tires were a major part of the low weight. ~1085 grams per tire vs. the expected 1250 and 1350 for a pair 60a(rear) and 3C(front)Maxxis minions. I'd say the Chunders have a similar sidewall to the tubeless/UST minion, if not thicker. For those that are interested in using them for UST setups, they haven't lost any psi since I pumped them up last week which is indicative of a quality sidewall for me.
Yellow Stans tape that covers the spoke holes finishes the tubeless setup. It keeps the weight low, and I can change tires as often as I please with the same low hassle of using a true tubeless rim. All that rubber clings to a pair of Stan's Flow rims. These rims are XC light but designed as heavy duty All Mountain or Freeride rims, which for me translates to Downhill. They don't have any eyelets so it is important to grease the outside of the nipples to reduce friction when building the wheel.
I used DT Swiss Revolution spokes (260mm both sides rear, 258/260 in the front) and black DT Swiss pro-lock brass nipples. Both hubs are Hope Pro IIs. The rear is a 135mm by 10mm and includes bolts instead of using more traditional, but heavier, thru-axle.
I wanted a few things to be custom so I built a different rear wheel setup. I used a Hope Pro II single speed hub with a steel shell. I took a weight penalty (296grams for the regular proII vs. 375grams for the SS) but needed the steel shell to keep the cogs from digging in to the freehub body. The 6spd cassette is an XTR cassette. I removed the top two cogs which share a common carrier, and the 16T cog that was between the 18T and 14T. Using an XTR cassette and getting a consistent decrease in cog size is really only possible with the 12-34 or 12-32 cogsets. The 11-34s have cog combinations that leave you with big gaps in the ratios.
Last but not least was the XO short cage derailleur. There are some issues with limiting the derailleur to not shift into the spokes. The design is built around movement for at least a 7 speed drivetrain. I improved by drilling and tapping a diagonal hole and using a slightly longer screw to reach the upper limit surface on the derailleur's body.
I used a Sram hollow-pin chain in lieu of the lighter but more expensive KMC SL 9spd chain. The crankset is the new for 2009 Truvativ Stylo OCTs. They are one of the best price cranksets on the market and only weighed in at 690 grams (no chainring or bachguard) with the GXP Team bottom bracket. That's only 80 grams heavier than a comparable XTR crankset. The truvativ chainring was used instead of the weight weenie's preferred E-13 ring because there was only a 1 gram penalty for a free chainring. An alloy bashguard (80 grams versus 115 grams for a older style Gamut polycarbonate bashguard) from an older Stylo crankset and alloy chainring bolts round out the crankset. The finishing touch is the Gamut P-30 chainguide, still the lightest guide on the market.
For front suspension the choice of the Totem was secondary to a 2010 Boxxer Team. However, availability of that fork was too far away and I figured the Solo Air Totem was lighter than a Boxxer so why not keep it? On the bonus side, I didn't need a brake adapter to fit an 8 inch rotor.
I did take a weight penalty from not using a 1 1/8 steerer Boxxer was with the stem and headset. Syncros makes an All Mountain headset that weighs in at 190 grams so that was a logical choice, but not as light as a Hope reducer headset (140 grams). The Thomson stem hits 180 grams but again not as light as a Sunline integrated stem (145 grams).
Black is an easy colour, if a little plain, to work with. So I chose a Chromag OSX bar that had all the right numbers. 760mm wide, 25mm rise, 5 degree upsweep, and 8 degree backsweep. Keeping with the black and weight weenie theme, Avid juicy Ultimates, a Sram XO trigger shifter with a black X9 clamp, and ODI ruffian grips round out the front of the bike.
The Juicy Ultimates were a natural choice for me. I already own one set on my Norco Fluid LT1 and they feel fantastic. The largest rotors available with Ultimates are a 7 inch / 180mm setup so I swapped out the rotors for 180mm rear and 203mm front G3 rotors. Also due to the nature of 7 inch post and IS mount calipers, the front brakeset comes with 4 titamium bolts: two for a 7 inch post-mount setup and 2 for an IS mount setup. I hacked the extra post-mount bolts shorter and used them to mount the rear brake adapter. Final touch was to shorten the brake lines for a clean look.
The remaining pieces in the build are a full length Thomson Masterpiece seatpost, a Selle Italia SLR saddle with titanium rails, and a Hope seat collar that weighs only 22 grams. My feet ride on Wellgo MG-1s, the favorite choice of many and one of the lightest pedals available.
The Excel spreadsheet, if carefully filled with well researched grams and ounces, reveals an accurate weight before the bike is built and before parts are purchased. My favorite site for weight references is Sicklines. It has a relevant weight database of Downhill, Freeride, Dirt Jump and All-Mountain parts that suits my style of bikes. For my build, I had calculated a hair over 35.20 lbs and produced a bike with a final weight of 35.20 lbs. Once I locate a reasonably priced 500lb titanium spring, that weight should jump below 35 lbs.
Spreadsheet
Scale shot
Scale shot close-up
I know that I made several compromises regarding durability or even function with this build. My riding style is typical for BC riders: I ride jumps, rock gardens, steep descents, fast singletrack, sketchy lines, tough climbs, and high speed trails. I don't usually shy away from any line if I'm having a decent day of riding but I know that coming up short or erring in judgment will cost me dearly. This will be more so with a lighter build but that is the price of being a gear freak and a weight weenie. Happy Trails!
It's a bit of a story.
The Specialized Demo frame is an odd choice for a light build. Extra seatstays and some serious frame beef meant that I was starting with an almost 11 lbs frame set with a Fox DHX 5 and steel 500lbs spring.
On the flip side, Specialized has put some detail into the bike, such as a magnesium linkage plate that saves 200 grams over the aluminum version and some machining of material here and there. Paint adds up to 200 grams so clear/raw anodized ftw. Last, a 135mm rear end with a 73mm BB shell means lighter parts choices.
The Specialized Chunder tires were a major part of the low weight. ~1085 grams per tire vs. the expected 1250 and 1350 for a pair 60a(rear) and 3C(front)Maxxis minions. I'd say the Chunders have a similar sidewall to the tubeless/UST minion, if not thicker. For those that are interested in using them for UST setups, they haven't lost any psi since I pumped them up last week which is indicative of a quality sidewall for me.
Yellow Stans tape that covers the spoke holes finishes the tubeless setup. It keeps the weight low, and I can change tires as often as I please with the same low hassle of using a true tubeless rim. All that rubber clings to a pair of Stan's Flow rims. These rims are XC light but designed as heavy duty All Mountain or Freeride rims, which for me translates to Downhill. They don't have any eyelets so it is important to grease the outside of the nipples to reduce friction when building the wheel.
I used DT Swiss Revolution spokes (260mm both sides rear, 258/260 in the front) and black DT Swiss pro-lock brass nipples. Both hubs are Hope Pro IIs. The rear is a 135mm by 10mm and includes bolts instead of using more traditional, but heavier, thru-axle.
I wanted a few things to be custom so I built a different rear wheel setup. I used a Hope Pro II single speed hub with a steel shell. I took a weight penalty (296grams for the regular proII vs. 375grams for the SS) but needed the steel shell to keep the cogs from digging in to the freehub body. The 6spd cassette is an XTR cassette. I removed the top two cogs which share a common carrier, and the 16T cog that was between the 18T and 14T. Using an XTR cassette and getting a consistent decrease in cog size is really only possible with the 12-34 or 12-32 cogsets. The 11-34s have cog combinations that leave you with big gaps in the ratios.
Last but not least was the XO short cage derailleur. There are some issues with limiting the derailleur to not shift into the spokes. The design is built around movement for at least a 7 speed drivetrain. I improved by drilling and tapping a diagonal hole and using a slightly longer screw to reach the upper limit surface on the derailleur's body.
I used a Sram hollow-pin chain in lieu of the lighter but more expensive KMC SL 9spd chain. The crankset is the new for 2009 Truvativ Stylo OCTs. They are one of the best price cranksets on the market and only weighed in at 690 grams (no chainring or bachguard) with the GXP Team bottom bracket. That's only 80 grams heavier than a comparable XTR crankset. The truvativ chainring was used instead of the weight weenie's preferred E-13 ring because there was only a 1 gram penalty for a free chainring. An alloy bashguard (80 grams versus 115 grams for a older style Gamut polycarbonate bashguard) from an older Stylo crankset and alloy chainring bolts round out the crankset. The finishing touch is the Gamut P-30 chainguide, still the lightest guide on the market.
For front suspension the choice of the Totem was secondary to a 2010 Boxxer Team. However, availability of that fork was too far away and I figured the Solo Air Totem was lighter than a Boxxer so why not keep it? On the bonus side, I didn't need a brake adapter to fit an 8 inch rotor.
I did take a weight penalty from not using a 1 1/8 steerer Boxxer was with the stem and headset. Syncros makes an All Mountain headset that weighs in at 190 grams so that was a logical choice, but not as light as a Hope reducer headset (140 grams). The Thomson stem hits 180 grams but again not as light as a Sunline integrated stem (145 grams).
Black is an easy colour, if a little plain, to work with. So I chose a Chromag OSX bar that had all the right numbers. 760mm wide, 25mm rise, 5 degree upsweep, and 8 degree backsweep. Keeping with the black and weight weenie theme, Avid juicy Ultimates, a Sram XO trigger shifter with a black X9 clamp, and ODI ruffian grips round out the front of the bike.
The Juicy Ultimates were a natural choice for me. I already own one set on my Norco Fluid LT1 and they feel fantastic. The largest rotors available with Ultimates are a 7 inch / 180mm setup so I swapped out the rotors for 180mm rear and 203mm front G3 rotors. Also due to the nature of 7 inch post and IS mount calipers, the front brakeset comes with 4 titamium bolts: two for a 7 inch post-mount setup and 2 for an IS mount setup. I hacked the extra post-mount bolts shorter and used them to mount the rear brake adapter. Final touch was to shorten the brake lines for a clean look.
The remaining pieces in the build are a full length Thomson Masterpiece seatpost, a Selle Italia SLR saddle with titanium rails, and a Hope seat collar that weighs only 22 grams. My feet ride on Wellgo MG-1s, the favorite choice of many and one of the lightest pedals available.
The Excel spreadsheet, if carefully filled with well researched grams and ounces, reveals an accurate weight before the bike is built and before parts are purchased. My favorite site for weight references is Sicklines. It has a relevant weight database of Downhill, Freeride, Dirt Jump and All-Mountain parts that suits my style of bikes. For my build, I had calculated a hair over 35.20 lbs and produced a bike with a final weight of 35.20 lbs. Once I locate a reasonably priced 500lb titanium spring, that weight should jump below 35 lbs.
Spreadsheet
Scale shot
Scale shot close-up
I know that I made several compromises regarding durability or even function with this build. My riding style is typical for BC riders: I ride jumps, rock gardens, steep descents, fast singletrack, sketchy lines, tough climbs, and high speed trails. I don't usually shy away from any line if I'm having a decent day of riding but I know that coming up short or erring in judgment will cost me dearly. This will be more so with a lighter build but that is the price of being a gear freak and a weight weenie. Happy Trails!