Lookit dat!!!
06-06-06 | 04:14 AM
#1
Thread Starter
LF for the accentdeprived
Joined: May 2005
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From: Budapest, Hungary
Lookit dat!!!
Shaft drive, no separate right chainstay. wow. Unknown origin and vintage, for sale at an auction site. Probably a coastie, possibly not in working order (but then what can go wrong on a shaft?)
06-06-06 | 04:23 AM
#2
Yay!11! I has!!!1
Joined: Jun 2005
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From: Eastcoast
Bikes: Cocaine the white stallion, Custom Witcomb pista, (Being restored) 80's Pogliaghi Track, (destroyed) RAP Round Breeze NJS, Cannondale Jekyll 900, 84/5 Pinarello Montello (all italian)
That is beast. Ultimate in clean "chainline."
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06-06-06 | 06:00 AM
#4
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Joined: Apr 2006
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Originally Posted by LóFarkas
Shaft drive, no separate right chainstay. wow. Unknown origin and vintage, for sale at an auction site. Probably a coastie, possibly not in working order (but then what can go wrong on a shaft?)
Anyway, I remember this rant about the problems with shaft drive. Quick read.
06-06-06 | 06:51 AM
#5
don't pedal backwards...
Joined: Jul 2005
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From: Minneapolis
Bikes: Surly Long Haul Trucker set up for commuting and loaded touring, old Sekine road frame converted to fixed-gear, various beaters and weird bikes, waiting on the frame for my Surly Big Dummy build
Looks like a rod braker, judging by the shape of the rims. That's pretty neat' I've never seen a shaft drive that used the driveshaft in place of the right chainstay before. Any idea on the make/model/year?
06-06-06 | 10:17 AM
#6
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From: Long Beach, CA
Bikes: Bianchi Advantage Fixed Conversion; Specialized Stumpjumper FS Hardtail
It would seem that using the driveshaft as a structural memeber would put a lot of stress on the bearings. Pretty cool though.
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06-06-06 | 10:21 AM
#7
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Joined: Sep 2005
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From: Williston, VT
Bikes: Bridgestone RB-T, Soma Rush, Razesa Racer, ⅔ of a 1983 Holdsworth Professional, Nishiki Riviera Winter Bike
BMW motorcycles do that too. the older ones had the shaft running inside the right swingarm. The new ones have a single sided swingarm with the shaft inside. The wheel bolts directly to the driveshaft with 5 bolts (if I recall) much like a car wheel.
As for bearing stress. no matter how the wheels are attached the wheel bearings have to take the entire loaded weight of the bicycle. I don't see how chainstay design can ad more than the loaded weight of the bicycle to the bearings.
As for bearing stress. no matter how the wheels are attached the wheel bearings have to take the entire loaded weight of the bicycle. I don't see how chainstay design can ad more than the loaded weight of the bicycle to the bearings.
Last edited by mattface; 06-06-06 at 10:26 AM.
