Originally Posted by mrv
(Post 21393611)
I would love to get something like a 135mm rear hub with a 3X5 gearing and a lot less dish on the wheel. Wouldn't that give a long lasting durable rear wheel set up? I think so. It's OK to say tell me how I'm wrong. (and yep, I'm still talking rim brakes....)
ciao! Many modern downhill mountain bikes are going to 7 speed rear cassettes but with narrower 11 speed cog spacing. Accomplishing the same thing you are describing. But disc brakes, and not 135mm spacing. But your reasoning is sound, at least according to people wanting to sell new DH bikes :D Available up to 150/157mm "OLD" As far as hub spacing, I believe things are mostly getting wider in the dropouts in order to help the chainstays swallow wider tires. AFAIK there really isn't much difference in freehub width between 8 speed and 12 speed. The trend towards wider tires is also driving the popularity of 1X systems since the wide chainstays and tires limit maximum chainring size. That's also why the a few new freehub standards have been invented, so that you can fit a smaller 9 or 10 tooth cog to make up for the limited chainring size. |
I don't have any pictures but some folks take beautiful vintage race bikes, spread the rear drop outs to 130, put on a chromium plated 11-34, a derailleur with a 3X long cage, a triple crankset, and then the cockpit is crazy tall like monkey bars.....
At least that bike up there is orange and born that way. |
Originally Posted by non-fixie
(Post 21393597)
So did I. And although the font style looks similar, I don't think there's a relationship between the two. The bikes are from Boulder CO, and bear names like "Thunder Pig".
I still have 5 or so typewriters, mainly ones I really like or can't possibly sell. My very first computer was also an Olivetti. An M15 laptop with a detachable keyboard and two 3.5" floppy disk drives: OK, back to American bikes. |
Originally Posted by Classtime
(Post 21393779)
I don't have any pictures but some folks take beautiful vintage race bikes, spread the rear drop outs to 130, put on a chromium plated 11-34, a derailleur with a 3X long cage, a triple crankset, and then the cockpit is crazy tall like monkey bars.....
At least that bike up there is orange and born that way. https://cimg2.ibsrv.net/gimg/bikefor...7bf733c37b.jpg |
Yeah, derailleurs that work exceptionally well but aren't pretty are stupid. Holds the chain on in rough terrain? Stupid. Allows for the gear range of a traditional triple with just one chainring, shifter and derailleur? Stupid. Automatically swings out of the way instead of breaking when hit? Stupid.
Modern drivetrains aren't fragile. Mine have proven to be more durable than older designs from the 80's and 90's. Stupid, eh? Also, when I'm riding, they look just as good as old-school derailleurs - 'cause I'm not looking at them. |
Originally Posted by scarlson
(Post 21393337)
The fork does have a bit of Ducati Monster to it. |
Originally Posted by Wildwood
(Post 21393713)
It seems to me the size of the cassette dictates the sliding drop-outs to keep the rd out of the cogs across any range of adjustment (and for disc brakes too)
. |
Originally Posted by USAZorro
(Post 21393345)
Those transparent pedals are super light and awesome! :innocent:
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Originally Posted by droppedandlost
(Post 21393395)
anyone care to explain the fork?
Ben |
Originally Posted by repechage
(Post 21393983)
you are supposed to have those new custom medial cuneiform ti bone replacements with the outboard bearing and threaded cup.
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Originally Posted by tashi
(Post 21393894)
Yeah, derailleurs that work exceptionally well but aren't pretty are stupid. Holds the chain on in rough terrain? Stupid. Allows for the gear range of a traditional triple with just one chainring, shifter and derailleur? Stupid. Automatically swings out of the way instead of breaking when hit? Stupid.
Modern drivetrains aren't fragile. Mine have proven to be more durable than older designs from the 80's and 90's. Stupid, eh? Also, when I'm riding, they look just as good as old-school derailleurs - 'cause I'm not looking at them. |
Not stupid drivetrain. Rather serves double use as a wood shaper for balsa core, cloth resin wrapped frame- future DIY bike making when the World has its power shut down.
https://cimg9.ibsrv.net/gimg/bikefor...e5e7bfd5da.jpg |
Originally Posted by seypat
(Post 21394044)
Actually, I run the triples so I can cover dramatic terrain changes with just one or two shifts of the FD and maybe 1 shift of the RD. Shifting 7-8 times one way then the same back the other way gets old quickly. At least it does to me.
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Originally Posted by tashi
(Post 21394054)
Not that I was advocating for single-ring drivetrains over triples for everyone buuuuut: Put a modern derailleur on that triple and you'd get a quitter drivetrain and eliminate dropped chains.
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Originally Posted by droppedandlost
(Post 21393395)
anyone care to explain the fork?
|
Originally Posted by tashi
(Post 21393894)
Yeah, derailleurs that work exceptionally well but aren't pretty are stupid. Holds the chain on in rough terrain? Stupid. Allows for the gear range of a traditional triple with just one chainring, shifter and derailleur? Stupid. Automatically swings out of the way instead of breaking when hit? Stupid.
Modern drivetrains aren't fragile. Mine have proven to be more durable than older designs from the 80's and 90's. Stupid, eh? Also, when I'm riding, they look just as good as old-school derailleurs - 'cause I'm not looking at them. I'm not really a mountain biker, though I ride off road. No judgments, just wondering. |
Originally Posted by Salamandrine
(Post 21394335)
I'm also wondering about these super low gears. What is a 32/50 useful for? That'd be about an 18.5" gear on a 29er. I haven't ridden a gear that low since tricycles... Seems like that's low enough that staying upright would take some effort. I can only imagine it's for getting traction on very very short very steep little hills and bluffs with lots of mud. Or is it for trials type stuff?
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Originally Posted by Salamandrine
(Post 21394335)
What then is the main advantage of these newfangled 1x setups? Is it mainly to prevent chain drop?
|
1x.....
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Originally Posted by Salamandrine
(Post 21394335)
What then is the main advantage of these newfangled 1x setups? Is it mainly to prevent chain drop?
Does it help with chain suck? I'm also wondering about these super low gears. What is a 32/50 useful for? That'd be about an 18.5" gear on a 29er. I haven't ridden a gear that low since tricycles... Seems like that's low enough that staying upright would take some effort. I can only imagine it's for getting traction on very very short very steep little hills and bluffs with lots of mud. Or is it for trials type stuff? |
Originally Posted by RobbieTunes
(Post 21394402)
50T Front.
10-42 rear. Were you able to use a single standard chain? |
Aside from what I’ve covered already the Main things are the clutch and the gear range. The chain can’t fall off (mostly) and no chainsuck either, particularly with a narrow wide chainring. Although chainsuck hasn’t hasn’t been a problem for the last ten years plus anyway.
Ditching the front d is a big plus for mountain biking. Fewer gears to keep track of, room for a dropper post lever on the bars and no issues with chain suck and botched front shifts. Less bashing chain rings as well. The gearing is, well, personal preference. With a wide range 12-speed you can get over a 500% difference which allows for low gears for super steep and tech climbs while leaving good gearing for hauling ass out to the trails on the road. Simple for the manufacturers as well as one setup can accommodate everyone. Personally, I have an 11-42 10-speed with an oval 32 up front (niner wheels) and it’s excellent for Vancouver Island technical mountain biking, particularly when you’re grinding up a super steep fire road or technical single track or you already have a couple hours of hard riding in your legs. Next cog stack will go to 45, I don’t want a 50. It’s hard to stay up going that slow, but it can save you from walking on super tech, super steep climbs and when you’re blown during long rides and also let you sit and spin so you have something in the tank for later. And a LOT of mountain Bikin is about it being “hard to stay up” for various reasons. |
Originally Posted by Salamandrine
(Post 21394335)
I'm also wondering about these super low gears. What is a 32/50 useful for?
https://i.imgur.com/ZVMNFif.png I can only imagine it's for getting traction on very very short very steep little hills and bluffs with lots of mud. When climbing super-steep gravel roads, if you need to stop, it's often a good idea to shift to a gear a few steps higher than what you were riding at. It means you'll need to push with a lot of torque to get rolling again, but you're less likely to have to fight rear wheel slippage, or running out of downstroke on first pedal stroke. Like with low gears in general, super-low gears like 32-50 are mostly about not bottoming out your gearing. Sometimes it's also about being able to accelerate: bikes get jostled around more easily at lower speeds, so when you've got a rough patch on a steep climb, sometimes the easiest solution is to power through it with a brief speed burst. Seems like that's low enough that staying upright would take some effort. |
Originally Posted by Salamandrine
(Post 21394335)
What is a 32/50 useful for? That'd be about an 18.5" gear on a 29er. I haven't ridden a gear that low since tricycles... Seems like that's low enough that staying upright would take some effort.
http://i.imgur.com/CiJwzKx.png (Link) |
Yeah, we should all be running Campy NR derailleurs with their cracked pulleys and narrow range, just like Eddie did!
Yeah, 1 x 11 is just stoopid. https://cimg1.ibsrv.net/gimg/bikefor...586e85502.jpeg |
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