Random new bike thread
- Thread starter Sandro
- Start date
Yeah really, why does no other company do it like Shimano? Is it patented or something?
I know, but Cannondales are popular around these parts and were for a long time. If you see how many old Lefties and Hollowgram cranks still go strong, then I would call that "fine". Not many SIDs or lightweight carbon cranks from the same vintage to be seen. XC use only though, although with a lot of mileage.
Because it's (slightly) heavier, and MTBrs are weight-chasing muppets. Which is also why XTR doesn't use pinch bolts when the rest of the line does.
Used to commute on a road bike with proper flat pedals. One morning it felt like the pedal axles were bent, was actually the Ultegra crank arm. Soft pedaled on that side until I got home and tested it with my full weight, crank arm broke right off. Pretty sure it didn't like the longer pedal axle and my mashing pedal stroke.
You're not alone my friend!
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Failure of Ultegra and Dura Ace HTII cranksets has been fairly well doccumented for some timeYou're not alone my friend!
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The ghost of Junzo Kawai (@thanksshimano) • Instagram photos and videos
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eg.
Understanding an unusual Shimano crankset failure
An Ultegra 6800 Hollowtech crank breaks – what can we learn?
www.bikeradar.com
Yeah, read that piece a while ago. Nice way of washing the responsibility off Shimano by bikeradar.Failure of Ultegra and Dura Ace HTII cranksets has been fairly well doccumented for some time
eg.
Understanding an unusual Shimano crankset failure
An Ultegra 6800 Hollowtech crank breaks – what can we learn?
Well, an interference fit on a carbon spindle is a really bad idea. It's not apples to apples, since XTR is still steel.
Yeah, they held on to pinch bolts until the m9100 generation.
It was disappointing to discover that after I acquired a set of m9100 cranks. It requires a proprietary tool to cinch the nds arm down.
If I used the word disgusted it would be too dramatic. I've stuck with HT2 for over a decade though. Once my nds m980 arm almost fell off during a ride. I didn't ever figure out how it happened.
But probably hundreds of grams weaker (and likely not *that* much cheaper?)garbaruk teasing cranks. claimed weight is 20g less than eewings
Garbaruk Bike Components on Instagram: "Something interesting is coming soon! That “something” is going to be hollow, weigh 380g, and available in all colorful combinations. . . . #garbaruk #garbaruk_components #newproduct #mtb #cycle #cncporn #enduro #lightweight #weightweenies #gravel #road #mtbdesign #mtblife #mtblove #cycling #crankset #bikerumor #peace"
2,639 likes, 105 comments - garbaruk_components on July 1, 2022: "Something interesting is coming soon! That “something” is going to be hollow, weigh 380g, and available in all colorful combinations. . . . #garbaruk #garbaruk_components #newproduct #mtb #cycle #cncporn #enduro #lightweight...www.instagram.com
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The cranks on my bike are pinch bolt type, I can't remember which brand they are, some bankrupt Italian mob.
I wouldn't call the 380 g Garbaruk aluminium crank "downhill" either. So comparing like for like is fair IMO.
For getting an idea about longevity of a product, I rather look at parts that are around for a couple of years and used in the real world than these industry-promoting mags and websites where their "long-term reviews" cover 300 km over 2 months.
not the axle but similar
Mattias Hellöre on Instagram: "Go Clavicula , it will be fun, they said."
76 likes, 5 comments - mattiashellore on June 27, 2022: "Go Clavicula , it will be fun, they said.".
www.instagram.com
even that sounds rather optimistic for most mtb longterm reviews.
Despite the ultegra/DA failures I still can't see past Shimano for reliable cranksets in a suitable guise for each application.
Not that they get a lot of use anymore but I still have a set of 2003 Saints still going strong on one bike and 3 sets of 2009s that do still see a fair amount of use. A light bike is nice but back to back the increase in flex between XT and Saint is really noticable so sub 400g Alu cranks really aren't for me and I wouldn't even consider carbon.
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Had green/gold one in my hands last week. They are stupid light. 30mm aluminium axle that is not even hard anodized... Chainring nut (not visable here) was flimsy af. From my experience, this splined crank puller i think is single use item as well... Asked the rep if they can make us a 24mm steel axle, coz you know, steel bearing races and an aluminium axle is a complete nono for me, and maybe it will be an option in the future, but for now it is what it is. It is intended for XC use. It is a clamshell design.garbaruk teasing cranks. claimed weight is 20g less than eewings
Garbaruk Bike Components on Instagram: "Something interesting is coming soon! That “something” is going to be hollow, weigh 380g, and available in all colorful combinations. . . . #garbaruk #garbaruk_components #newproduct #mtb #cycle #cncporn #enduro #lightweight #weightweenies #gravel #road #mtbdesign #mtblife #mtblove #cycling #crankset #bikerumor #peace"
2,639 likes, 105 comments - garbaruk_components on July 1, 2022: "Something interesting is coming soon! That “something” is going to be hollow, weigh 380g, and available in all colorful combinations. . . . #garbaruk #garbaruk_components #newproduct #mtb #cycle #cncporn #enduro #lightweight...
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They make their stuff in Poland, not Ukraine.
Oh yeah, and the axle spline was DUB or something similar looking, not a small spline like on shimano cranks.
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I've definitely ridden stiffer cranks than XTs, but really they tick the boxes for me (cheapish, durable AF and simple). Shimano cranks and BBs are definitely my favourite and I really haven't been convinced to that anything else offers a better alternative.
Looks pretty interesting, except for the sub-600mm stack heights.
those scews on the downtube are strange
I forgot about that. But they came back for M9000.
Proto Speshy using carbon tubes with bonded lugs. Think they will go this route or just using the method for prototype?
Was thinking that too...maybe some old school diamond plate to give it that (shitty) retro look and weight. Also yes - we should start dropping the ban hammer on people posting things about DH bikes. This forum is about road cranks and trail bikes.
holy damn, there's a shit ton of interesting details on finn's bike. carbon tubes bonded into lugs (see head tube & seat tube junctions), chainstay looks cnc'd? some sort of pull linkage... some serious levels of enginerding going on.
holy damn, there's a shit ton of interesting details on finn's bike. carbon tubes bonded into lugs (see head tube & seat tube junctions), chainstay looks cnc'd? some sort of pull linkage... some serious levels of enginerding going on.
I am pretty sure that is all just driven by the fact that it is a prototype. Much easier to make a lugged and machined bike for one offs than with production level manufacturing techniques.
tho if you're just building a mule, seems welded alu would be much easier than developing the required technologies to do this. if they're messing with entirely new materials / techniques i'm thinking they're going to be deployed in some production form at some point in the future. unless the skunkworks division has a boatload of discretionary cash, and they're just dabbling in exotica for funsies. which is also entirely possible.
If any of the large manufacturers were to do that it would be Spesh