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Giant team DH chain guide conundrums...

mack

Turbo Monkey
Feb 26, 2003
3,674
0
Colorado
I cant seem to find a chain guide that either QBP or BTI will say for sure will work on my 02 Giant team DH bike. I dont want a maybe, i want a yes. I can get any guide, but wich one will work. I have a four bolt race face DH crank set, the 110 dollar one. the frame is not ISCG tabed.
 

axlvid23

Monkey
Jun 1, 2003
373
0
Littleton
mack said:
I cant seem to find a chain guide that either QBP or BTI will say for sure will work on my 02 Giant team DH bike. I dont want a maybe, i want a yes. I can get any guide, but wich one will work. I have a four bolt race face DH crank set, the 110 dollar one. the frame is not ISCG tabed.

get an MRP...the one without the ISCG tabs. I forget if it's system 1 or 2 or whatever. I've been running one on mine all season and it works great after getting some new spacers and bolts at the hardware store for the rollers to make them sit correctly over the rings. After that, It's pretty much smooth sailing from there/

hope that helps
 

mack

Turbo Monkey
Feb 26, 2003
3,674
0
Colorado
what size ring man? i was thinking of the system 1 for 36-40 ring. will this clear the chainstay. ill just get the same one you have then.

they said the mini me wouldnt work. so either way im getting a new ring.
 

Bicyclist

Turbo Monkey
Apr 4, 2004
10,152
2
SB
I would go for an e-13. You don't need ISCG tabs for them to work well. I have one on my Enduro (no tabs) and it works great.
 

John P.

Turbo Monkey
Sep 24, 2001
1,170
0
Golden, CO
At the risk of sounding spam-esque, the e13 SRS guide works just fine on your bike, and it will actually improve your chainline slightly over the OEM setup. Do a search on here, and you'll see that tons of people have had great luck with our guide on that frame.

Best of luck,

John P.
e13
 

axlvid23

Monkey
Jun 1, 2003
373
0
Littleton
mack said:
what size ring man? i was thinking of the system 1 for 36-40 ring. will this clear the chainstay. ill just get the same one you have then.

they said the mini me wouldnt work. so either way im getting a new ring.
I used the ring for the 44 toother and it cleared it just fine....It looks like you could still go plently bigger. I'd go as big as possible so it clears the lower pivots and you don't destroy them on rocks and the liking.

The E13 works too....but I don't know, I have never really liked the design...but just a personal preference dealio.
 

Shmoe

Monkey
Oct 23, 2001
216
0
Calgary, Canada eh?
Transcend said:
no tention on the chain is a bad idea
If your rear D is set-up properally why does it really matter? I didnt have any chain tenssion last year, never droped a chain, its pretty much impossible for it to jump out of the double bashgaurds?
 

Transcend

My Nuts Are Flat
Apr 18, 2002
18,040
3
Towing the party line.
Shmoe said:
If your rear D is set-up properally why does it really matter? I didnt have any chain tenssion last year, never droped a chain, its pretty much impossible for it to jump out of the double bashgaurds?
no it can easily jump on any small bump. Look at photos of people riding hard..you will notice that chains are ALWAYS untentioned..the only thing holding them in is the guide wheels.

This even happens with ultra short cage, strong spring road derrailleurs. With long travel bikes, the chain can stretch so much (especially on a single pivot) that there is no way to have the chain /derrailleur set up "perfectly". It will eb either over tentioned limiting travel and eventually breaking, or undertentioned and sloppy loose being only held on with a guide.
 

narlus

Eastcoast Softcore
Staff member
Nov 7, 2001
24,658
65
behind the viewfinder
from my experience, here are the two best part changes from a stock '02 giant DH:

- e13 SRS chainguide (east coast 40T will cover the lower linkage)
- avalanche rear shock

the bike works great.

oh yeah, a bit more loctite on the linkage bolts never hurt either.
 

dw

Wiffle Ball ninja
Sep 10, 2001
2,943
0
MV
axlvid23 said:
The E13 works too....but I don't know, I have never really liked the design...but just a personal preference dealio.
Curious to know, have you ever tried an SRS or looked at one up close? If so, what is the feature/ features that turns you off? We really dont hear many complaints from riders, and we are always looking for feedback!

Dave
e.thirteen


BTW, the SRS fits perfectly on a Giant DH Team.
 

dw

Wiffle Ball ninja
Sep 10, 2001
2,943
0
MV
Shmoe said:
If your rear D is set-up properally why does it really matter? I didnt have any chain tenssion last year, never droped a chain, its pretty much impossible for it to jump out of the double bashgaurds?
If you never pedal trough rough terrain, then you are probably all set!

Having done a LOT of testing myself, I can't understand for the life of me why people run that double bashguard thing. It just plain wont keep the chain on through the rough stuff! The only good explaination I can come up with is that most of the people using that type of deal dont pedal enough for it to make a difference. For the added security when you want to pedal, a chainguide seems like a simple and smart idea.

Whatever though, to each his/her own! If it works for you, then thats all that matters!

dw
 

vitox

Turbo Monkey
Sep 23, 2001
2,936
1
Santiago du Chili
i have set up SRS`s on some of the top racers bikes down here, and ive learned a few things

1: stock chainguide is total crap.
2: stock mounting holes are crap too, not worth even trying to bolt anything onto those
3: use a 44t bashguard so you get some extra protection for those links down there by the BB, especially if you have switched to a 1/4" shorter i2i fox as people were doing here after the OEM prodeluxes proved to work only for a couple of weeks.

i would strongly suggest the 44t SRS, an mrp will work too but i cant see any reason to pick it over the SRS , especially when its more $.
 

SuspectDevice

Turbo Monkey
Aug 23, 2002
4,217
444
Roanoke, VA
I want to echo JP's statements about the SRS on a Giant, It is a really, really easy fit, but it won't improve your chainline unless you grind off the tabs for the little ring on your crank arms, Any other cranks than the Prodigy DH's have a considerably less obtrusive set of holes (or none at all), and then you can set up your guide to get a better chainline as he suggests.
(JP, the application guide that Heikki wrote up works great, unless someone is running prodigy dh's, so you guys might want to note that...)
 

dw

Wiffle Ball ninja
Sep 10, 2001
2,943
0
MV
SuspectDevice said:
(JP, the application guide that Heikki wrote up works great, unless someone is running prodigy dh's, so you guys might want to note that...)
Will do, thanks a lot!

dw
 

Wingnut

Turbo Monkey
Nov 12, 2003
1,677
204
Sorry, I'm Canadian ..sorry...
I really have had no issues with my Giant Chainguide. Well, maybe a little chinline trouble at first, but $8CDN (between Canadian tire for shorter bolts and LBS for spacers) and it was all fixxed up. I just moved the guide in, and spacered the chainring inwards. I've had a full-on, flat-out case on a step-up-to-tabletop, right onto the guide, and all is still straight. Maybe just luck, but I took out about a half inch of lumber out of the tabletop!!
 

mack

Turbo Monkey
Feb 26, 2003
3,674
0
Colorado
PS. a chain guide is a total nesesity for any DHiller.

oh BTW azracerx,

the frame is working great!
 
J

J5ive

Guest
I took off a giants chainguide yesterday- are they made of rubber?

Seriously- the SRS is the last guide you will buy.
They just need to sort out stock levels over here in Australia! :)
- and talk them into importing some imperials!
 

Damn True

Monkey Pimp
Sep 10, 2001
4,015
3
Between a rock and a hard place.
John P. said:
At the risk of sounding spam-esque, the e13 SRS guide works just fine on your bike, and it will actually improve your chainline slightly over the OEM setup. Do a search on here, and you'll see that tons of people have had great luck with our guide on that frame.

Best of luck,

John P.
e13
Spammer!
JK

I'm one of them.
I have been running the Evil guide (in the 44 size) on my Comp-DH with a 36 ring for two years w/o a hitch.
IMO it's the best single product in the DH side of this industry.
 

mtnkilla

Chimp
Jun 11, 2004
3
0
San Francisco, CA
mack said:
I cant seem to find a chain guide that either QBP or BTI will say for sure will work on my 02 Giant team DH bike. I dont want a maybe, i want a yes. I can get any guide, but wich one will work. I have a four bolt race face DH crank set, the 110 dollar one. the frame is not ISCG tabed.

Another option is the Gamut USA G45 and G54 guides. They have a very simple design, are lightweight, easy to install, and best of all, they keep the chain on. They work well with Giants and help for straighter chainlines. Check out www.gamutusa.com.
 

ghettogt76

Monkey
Dec 5, 2001
410
0
Pleasant Hill, Kali'fo'nya
Just today put on an MRP on my 02 DH team. I used the MRP without the ISCG mounts, can't remember if it is the WC1 or WC2. Here's some directions...

Grind off ALL the tabs on the back of the piece that mounts on the BB shell. Make is as flush as possible with the rest of the piece. Take out those little inserts that in the piece too.

After the BB mounted piece is on, you will need a spacer and longer bolts for the inner guide itself. Make sure they all clear the swingarm! It may take some more grider work...

For the top orange wheel thing, I got another bolt regular hex bolt that was the same thread pattern and length of the original. I then had a grind a lot of the head down as to clear the swingarm.

It takes some work, but is well worth it! Looks cool too! :thumb: If you have any questions about the setup just let me know.
 
B

bighitfsr

Guest
"Curious to know, have you ever tried an SRS or looked at one up close? If so, what is the feature/ features that turns you off? We really dont hear many complaints from riders, and we are always looking for feedback!"

I have to SRS chain guides two on Bighits.
I have the STS on my 5.5" travel play bike and the East coast special on my DH bike.
Both guides have the maximum sized chain ring (36T/40T) but the plastic bash ring is much larger than it needs to be IMO.
The actual bash ring would probably protect a chain ring 2 teeth bigger.
Also you should offer an lighter version of the bash guard, few if any break and that means its stronger/heavier than it needs to be.
No a major problems IMO but there is room for improvement.
It is the best chain guide I've ever used.
I rate the best feature being the total absence of grub screws (comming off a ****ty airreal blackspire copy).

Also you need to find new distributors in Australia.
An SRS costs AU$350 here while a Mr Dirt or MRP is AU$280.
Stock is also a problem.
Most people I meet on the trails here have purchased thier guides via US mail order. This is bad for the customer and bad for Aussy bike shops.
 

John P.

Turbo Monkey
Sep 24, 2001
1,170
0
Golden, CO
bighitfsr said:
"Curious to know, have you ever tried an SRS or looked at one up close? If so, what is the feature/ features that turns you off? We really dont hear many complaints from riders, and we are always looking for feedback!"

I have to SRS chain guides two on Bighits.
I have the STS on my 5.5" travel play bike and the East coast special on my DH bike.
Both guides have the maximum sized chain ring (36T/40T) but the plastic bash ring is much larger than it needs to be IMO.
The actual bash ring would probably protect a chain ring 2 teeth bigger.
Also you should offer an lighter version of the bash guard, few if any break and that means its stronger/heavier than it needs to be.
No a major problems IMO but there is room for improvement.
It is the best chain guide I've ever used.
I rate the best feature being the total absence of grub screws (comming off a ****ty airreal blackspire copy).

Also you need to find new distributors in Australia.
An SRS costs AU$350 here while a Mr Dirt or MRP is AU$280.
Stock is also a problem.
Most people I meet on the trails here have purchased thier guides via US mail order. This is bad for the customer and bad for Aussy bike shops.
Thanks for the feedback; glad to hear you like the guides. Here are a few responses to your issues:

*Diameter of bashrings: While the bashring will technically protect a ring that is 2 teeth larger than our 'max' on each size (i.e., our 42T bashring is about the same diameter as a 44T chainring), the function of our guide requires that there be some overlap between the diameter of the bashring and the position of the top slider. If you didn't have this overlap and you were pedaling during a large hit, you could possibly pedal the chain right out of the guide (for some reason, a lot of other guide MFR's haven't figured this one out yet!). Another thing to note is that decreasing the diameter of the bashguard to the sizes you're talking about would not only result in a much less reliable chainguide, it would also only increase ground clearance by 3 to 4 millimeters. Altering the pressure in your tires by a couple of pumps will create a bigger effect on ground clearance than that.

*Weight of the bashring: We've played around with a lot of bashring thicknesses, and you'd be surprised at the results. A bashring that is half the thickness of our current model is only about 40-50 grams lighter, and it's much weaker. After 4 years of testing, we're very confident that we've got the best strength-to-weight ratio possible.

*Australian Distributorship: I'll give them a call and see what's going on with pricing. As for availability, that's more our fault than theirs. We keep getting overwhelmed with demand for our guides, and we're out of stock on sizes more than we'd like to be. A tricky thing about international orders is that they order a ton of different sizes (we offer a total of 72 possible chainguide and bashring combos, given all the bolt patterns, diameters, guide types, and colors), and we need to have every single one in stock before we can ship their order. Otherwise, price goes up even more due to the cost of freight on multiple shipments. We've just finished a complete overhaul on our inventory system, though, so things are looking great for '05.

I hope this helps answers some of your questions. Feel free to Email me directly if you ever have any other issues.

Best regards,

John P.
Business Director
e13
johnp@e13components.com
 

dw

Wiffle Ball ninja
Sep 10, 2001
2,943
0
MV
bighitfsr said:
I have to SRS chain guides two on Bighits.
I have the STS on my 5.5" travel play bike and the East coast special on my DH bike.
Both guides have the maximum sized chain ring (36T/40T) but the plastic bash ring is much larger than it needs to be IMO.
The actual bash ring would probably protect a chain ring 2 teeth bigger.
Also you should offer an lighter version of the bash guard, few if any break and that means its stronger/heavier than it needs to be.
No a major problems IMO but there is room for improvement.
It is the best chain guide I've ever used.
I rate the best feature being the total absence of grub screws (comming off a ****ty airreal blackspire copy).

Also you need to find new distributors in Australia.
An SRS costs AU$350 here while a Mr Dirt or MRP is AU$280.
Stock is also a problem.
Most people I meet on the trails here have purchased thier guides via US mail order. This is bad for the customer and bad for Aussy bike shops.
Thanks lot for the feedback. We have some things in the works that I hope will help our aussie friends out quite a bit!

I want to address one of your points, the one about bashguard weight with some actual measured #'s. The actual weights of popular "bashguards" that are offered with chainguides just may surprise you!

1) 40T e.thirteen SRS supercharger bashguard- weight: 243.5 grams

2) 40T dual 1/8 inch 6061 aluminum bashguard as used on other chaingudes (2 per guide)- total weight: 278 grams

3) 40T dual 5mm thick 6061 aluminum bashguard as used on other chaingudes (2 per guide)- total weight: 446 grams

4) 40T 6mm thick 6061 aluminum bashguard as used on other chaingudes (1 per guide)- total weight: 274 grams


As you can see by the #s, the supercharger is the lightest bashguard out of all of the common designs available, and in addition to that, the supercharger offers "actual" bashguard protection. Some of the other "bashguards" that we are comparing to here offer laughable protection in my opinion, with a gain in weight to go with it.

Like John P mentioned, we have spent a lot of time and money over the past few years on product genesis and development. In the never ending quest to save weight, increase strength, and improve performance, we have tried thinner bashguards, different shapes, and all kinds of other features. We even use our own proprietary engineering polymer blends to build the superchargers and slider kits.

For sure, we're going to keep tring to make the guides lighter, and stronger. Thanks to the efforts of our worldwide pro race teams and riders like you, we get usable feedback that we can back up with our own internal testing in cyberspace, the lab, and ultimately on the trail.

Thanks for the info!

Dave
 

mack

Turbo Monkey
Feb 26, 2003
3,674
0
Colorado
I did order a 44t E 13 guide and 44 tooth race face dh ring, should be sick. oh, will the plastic bash guard work as well? Or is the reason its plastic is so its cheap to replace?
 

RhinofromWA

Brevity R Us
Aug 16, 2001
4,622
0
Lynnwood, WA
mack said:
I did order a 44t E 13 guide and 44 tooth race face dh ring, should be sick. oh, will the plastic bash guard work as well? Or is the reason its plastic is so its cheap to replace?
:think: :confused:
1- were you running a 44t before? why run one now? Are your courses that wide open? I originally started w/a 46t then played around from36-42t and setteled on a 40 or 42 depending on whatever is straight when I am building my DH bike. 44 seams tall. 42 is at times also....even with a 11-32 cassette :D

2- Forgive me if you are new, but the Evil guide is real similiar to that bullit proof stuff they use for bank windows and stuff. It is less likely to bend and fail than an aluminum ring. People actually buy them to do grinds with.

I run one on my XCHT (dual ring set up) I was just running the bash guard until last weekend when I threw on the DRS....I don't have a bunch of time on that one yet....so I can't comment other than it is quiet. I did use the bash guard to skipp and alide accross logs and rocks while riding trails.

I wouldn't worry about the ring....JMHO

I am setting up my Rotec with the SRS version but I need to make some more modifications before finishing up....My rotec is very proprietary.