rootes1 - why not make the motor concentric with the bb axle to get rid of the bevel gear?
paulrockliffe - You would then have to put it inside the bottom bracket axle, and then you wouldn't be able to transfer the torque to the frame, so the motor would just spin itself. It would also be very tricky to get the electrickery to it too.
erm - put it outside of the axle!! i.e. make the axle the armature and the BB shell the static part... i.e the just like all the power assist hubs but keep outer static and let the centre spin.. though revs/ratio of motor to cadence might be an issue... and might need a bigger BB shell
[i]"For an added conspiracy theory, looks like Cervelo are working on a 650g road frame".[/i]
Yes they are and its called the R5ca and it did a stage on the Tour of California and by all accounts you'll need to rob a bank to buy it....
http://www.cervelo.com/en_us/engineering/project-california/
RE Cancellera how did he do in the Giro?
how is this in any way 'doping'? These roadies just can't stop thinking about doping!
I would love one though, if you could charge it with regenerative braking
Cancellera didn't do the giro....
Cancellera didn't do the giro....
...yeah, he's having a rest after the classics to recharge his batteries before the Tour....
<sorry.... IGMC....>
That is why I asked the question 😉
I bet Cancelleras lawyers are peeing themselves with excitement at the prospect of the liable suits...
Well I have seen it this morning in the sport pages of the local rag...
Debunking:
http://www.velonation.com/News/ID/4415/Fabian-Cancellaras-so-called-motorized-doping-debunked.aspx
New Roubaix images released.
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LOL!
I'd build it into the down tube and charge it through the bottle cage allen bolts - just to confound the UCI chappie with his allen key and torch 😉
Regenerative braking on a bike would not be worth the extra weight, complications, and resistance (due to back emf) for the amount energy saved.
