damn me if it rides like it looks this will be great to super awesome bike.
I really like it.
can't wait
I really like it.
can't wait
good points. great to see the garage craftsman can still make a go of it (and build cutting edge hardware) in todays market. the lack of marketing foof & hype generating tactics is refreshing. knolly's dig at suspension jargon was awesome: 'Omega Metered Factored Gaussian Super Theoretical Forward Ultimate (OMFG STFU) pivot technology. build a great product & people will come.Eh, Doc builds good bikes as well as designs them. That alone demands respect. It's fine if you love the way your xyz bike rides, but it means something to some people that their bike was built with love and care by somebody you can actually meet or talk to.
I am also enamored by the fact that there's little or no marketing terminology. No anti-squat curves, no instant centers, no dual-reactive-climate-controlled-automatic-steering-link-triangle-pivot. It's a single pivot with a rising rate link, built by a guy who cares about bikes, in the US, designed by him and welded by him. Pretty simple. I think that's cool. Then he took it a little further, trimmed the fat, and modified it to work a little better. That's better.
There aren't a lot of US frame builders that actually build in the US anymore. Most everybody else farms out welding to either taiwan or kinesis/etc., or assembly, or something else.
agreed, would like to see something besides profiles, at least some of the ultralight bmx cranks they're developing. with the tree/spindle drive sprocket you no longer have to use LHD cranks...Looks brilliant. Would love to be able to afford one.
Agree that a slightly higher BB and slightly steeper HA would be preferable (which would be simple enough to accomplish with two shock mounting points...).
If the BB is a remotely standard width, you can drop another .5lbs easy with modern aluminum cranks.
Can't wait for the release.
Looks like the same profile-dedicated setup, which isn't that heavy.Looks brilliant. Would love to be able to afford one.
Agree that a slightly higher BB and slightly steeper HA would be preferable (which would be simple enough to accomplish with two shock mounting points...).
If the BB is a remotely standard width, you can drop another .5lbs easy with modern aluminum cranks.
Can't wait for the release.
Fixed that for you.....
And weight, that is sick. 17,2kg with dh tires, steel frame and PROFILE cranks! Sick!
The BB really is 13.5". Yes that is extremely low for a 9" travel bike. It does require the rider to visually coordinate obstacles approcaching with pedalling cadence, much like pedaling over a whoop on a BMX track. Lowering the BB is likely the best way to add stability, it lowers the rider's CG, not just the CG of the bike. It makes the bike corner and manual better. The low BB works extremely well with the low height and even lower bars. This combo of low BB and low/wide bars adds a ton of control and allows for quick handling despite the slack head angle and plush suspension. We've been testing this super low setup for the past 3 years, both East and West, with good results. And if it's too low, a link of chain can be removed from the left side and the eccentric BB rotated up for an additional 3/8" (9.5mm) of height.I'd love to try that thing. BB seems a bit low with 9in of travel. Are there no pedal clipping rocks in Utah?
The frame is made from True Temper Supertherm tubing which does rust just like any steel. It's our standard practice for the first few weeks of initial testing to be done with the frame unpainted in case any modifications are needed with the welder. Just for reference I believe the OX Platinum series of tubing is the same material as Supertherm but in wall thicknesses and diameters that are road bike/XC oriented.is the true temper ox platinum tubing ok to leave raw without a coating ? or will it rust ?
We're doing the initial testing with an Avalanche shock because it's still the best performing shock available even if others may be lighter. We will be working with other companies during testing to dial in other options.I have another Q... is Avalanche going to be the only shock option again? NTTAWT.
The pivot point is only slightly higher than the old RL, it's more the BB is so much lower it makes the pivot look high. The pivot is also farther back, making a much shorter swingarm. The location allows for the super short starting chainstay length of 16.5" without the tire hitting the seat. The wheel moves only back and away from the seat. Never toward it. This location also helps the bike turn and maual better as the frame does not fold the suspension as much (when lifting to manual and thru G's of mid turn) as the lower more forward pivot and longer swingarm. This feature, like the low BB/bars, helps the bike snap out of corners better.from the Supercrayon thread:
awesome bike. i like the refinements. why was the pivot point raised, just for packaging?
will the geometry numbers change before production, or is that it? I'm terrified of a 13.5 inch BB on a 9" travel bike on the east coast. slightly less worried about the super slack HA.
I raced Angel Fire to an expert class 2nd and 4th with a 13.5" BB and 170mm cranks without a problem. Those courses are a total blast and are my favorite next to the old Mt Snow Nationals Finals Course.... Trying to get this through the rock gardens at Angel Fire is just gonna be to tough for a hack like me. Hooking a pedal hard = instantaneous stop and launch. I'd like to see around 14.25". I really don't get the SUPER low BB trend. Very few riders can push a bike to the limits of physics that would require a 13.5" BB.
We will make pink available just for you! (t's edit: okay, one exclamation point, i lied. !)... I wonder if I can get one in pink?
The new shaft configuration is not backward compatible.Very slick. No two ways about it.
That pivot is a mile high. You could coast over a horse with that thing.
Impressive weight, too.
I'm curious about how the new jackshaft is put together. Is it reverse compatible with the older design? My chainrings are starting to wear out.
RH chain backwards??? It's a KMC X9 chain that does have some contour's to the sides of the plates. Is there a known correct direction? If so it was not listed on the packaging. (t's note: quite the eye you have there damo?!)...The RH chain is on backwards.
Please no hero worship talk. We're all just doing our thing. And there's a lot of things. And a lot of we's. And nobody does their thing better than they do.Wow, it looks like this Doc guy has knocked that Dave guy off as the hero of choice for the dh-internet-idol-worshiping masses. Everybody - on your knees....
from True TemperSuperTherm is a proprietary superthermophillic (heat-loving) alloy, developed in partnership with the U.S. Steel Alliance. The composition of Chromium, Molybdenum, and Vanadium with an unprecedented 217 ksi ultimate tensile strength makes this alloy actually gain strength through a metallurgical transformation in the heat-affected zone as a result of welding or brazing. SuperTherm is highly temper-resistant, resulting in an 11% increase in fatigue life and a 20% increase in impact strength over Heat-treated 4130. The increased mechanical properties of SuperTherm allow for incredibly strong, yet lightweight frame designs with that legendary feel of steel ride quality.
are these puppies post weld heat treated?OX Platinum is a proprietary superthermophillic (heat-loving) alloy, developed in partnership with the U.S. Steel Alliance. The composition of Chromium, Molybdenum, and Vanadium with an unprecedented 217 ksi ultimate tensile strength makes this alloy actually gain strength through a metallurgical transformation in the heat-affected zone as a result of welding or brazing. OX Platinum is highly temper-resistant, resulting in an 11% increase in fatigue life and a 20% increase in impact strength over the competition. The increased mechanical properties of OX Platinum allow for incredibly strong, yet lightweight frame designs with that legendary feel of steel ride quality.
The hack testing will commence soon. I'm a prime subject (or suspect?) for pedal smack issue so I'll let you know how it goes once I get some runs in on it.Thanks for the answers Terry.
I was at AF when Doc took 2nd. I met you at the time (I had the white Brooklyn) I have no doubt a 13.5" BB is beneficial under Doc's control. I guess I didn't stress the word "HACK" enough, when making my comment.:biggrin:
I'd still like to see Doc try to come up with something that would a least give an option to raise the BB a little, the idea of an extra shock mounting hole seems good. Even an extra 3/8" with the EBB at top is still pretty low.
BTW. Tell Doc I'll be gunning for him next season. I'm now Cat 1 45+
a katipo, it's a spider and every one knows how badass spiders are!kitty what?
Forwarded from Doc: "Stoked, good question. The tubes are not post weld heat treated as in "the frame goes in an oven" or something. "Air Hardening" as both True Temper and Reynolds term it, is referring to a property of the material that after being heated by the weld, as the material cools back to room temperature the grain structure of the steel aligns itself in such a way that it is harder and stronger than it was before being heated. Kind of an automatic built in heat treating process. This is a very useful thing as it creates kind of a gradient of strength that radiates away from the weld and back into the mid span of the tube, greatly reducing the stress risers near the tube juncionts. Most steels do not have this poperty and in fact the opposite happens where the area around the weld gets softer and weakened by the heating/cooling cycle.ox platinum and supertherm are the same. s&m 're-named' their tubes 'supertherm' brand recognition maybe..
from S&m
from True Temper
are these puppies post weld heat treated?
Holy Cow, I wished I'd seen you at Sol Vista.The hack testing will commence soon. I'm a prime subject (or suspect?) for pedal smack issue so I'll let you know how it goes once I get some runs in on it.
I saw you and your son this summer from the lift at Sol Vista on a nice quiet weekend but didn't manage to catch up with you. Was still good to see you and your boy tearing it up.
that makes baby jesus cry......next photo update might not happen for another month or more, hard to say....
AHHHHH yes. I remember that day well. Some how I managed to screw up the 30' + gap jump on course #2. My kid said it looked like Evil Knievel's Caesar Palace crash. With my 47 year old body cartwheeling down the mountain for a hundred feet. Unconscious for a least 3 minutes. 1 brand new helmet, ruined.OLDSKOOL: Yeah, that was me in the vid. And no, I don't smoke crack but apparently I look that way in interviews. It was my frist time on that side of the camera for an interview, can only get better from here.
You weren't on the RL at SV, it was early July, maybe a Turner. That's funny you're on Steve's old bike now. Quite the color combo, eh. No doubt it's been well cared for.
I was about to roll up my sleeves to challenge you to a Hackers Pedal-Smack Threat-Down but you got me with the 100 lb rock.
Sorry, I couldn't help myself.1 brand new helmet, served its purpose.
and thats all that matters.Congrats Doc and T, I approve 100%