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Constantly Engaged Final-Drive |
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GeoffBird 
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Joined: 20 September 2005 Status: Offline Points: 2396 |
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 Topic: Constantly Engaged Final-DrivePosted: 20 November 2011 at 9:17pm |
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Has anyone experience of a bike with a two-stage chain-drive, where the final drive is constantly engaged? IE: The freewheel is in the mid-drive rather than the wheel. If so, have you had any issues with it or comments to make? Anyone else got any comments?
I think some FWD streamliners have been built with this set-up. Bit of an obscure question I know... |
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Right Time - Right Place - Wrong Speed
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gNick
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Joined: 22 February 2005 Status: Offline Points: 1977 |
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Posted: 20 November 2011 at 11:24pm |
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Check with Jon Woolrich, I think that he is planning for the new Oscar to be that way.
I have thought about it but, at least for a FWD bike, I would prefer the freewheel to be at the wheel, mostly to reduce derail problems. |
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gNick
"I'm afraid it's definite, Mrs Banker - your son has bicycles" |
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GeoffBird
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Joined: 20 September 2005 Status: Offline Points: 2396 |
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Posted: 20 November 2011 at 11:32pm |
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Thanks gNick. I'm thinking about RWD, so derailling hopefully less of a problem and jamming, leading to the wheel locking, would be less serious on the rear wheel. Maybe more mechanical drag when freewheeling? More noise? Dunno.
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Right Time - Right Place - Wrong Speed
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Yanto
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Joined: 11 July 2005 Status: Offline Points: 1521 |
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Posted: 21 November 2011 at 9:08am |
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I tried a similar set up on wobbly at quibell this year. Different in that there was a freewheel on mid-drive and also legacy one on rear wheel. I found it very draggy! However i believe the drag was caused by tensioning chain to such an extent to stop it jumping when i applied power and the floor of Wobby flexed so much to allow eveything to become "loose".
Without the chain being too tight it was smooth and quiet.
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