Kepler
10 MW
After great results with friction drives on hard tail bikes, I was looking for a new challenge. Using the experiences from my other friction drive designs, I decided I would try and build an under bottom bracket friction drive for a serious large suspension travel mountain bike.
Design criteria was as follows.
Total weight of drive system including battery under 2kg
Super strong to handle serious mountain bike riding.
Handle rain and mud
Stealth appearance
quite operation.
And most importantly, zero impact on how the bike rides with the power assist switched off.
Bike up for the conversion is my trusty Trek Fuel EX9
This is a really nice bike and rides great as a standard mountain bike. With some assist to get back up the hills it will have the potential to be epic.
Build and testing is well on its way and looking very positive. If the humble friction drive is of interest to you stay tuned as the results to date are looking very promising.
Design criteria was as follows.
Total weight of drive system including battery under 2kg
Super strong to handle serious mountain bike riding.
Handle rain and mud
Stealth appearance
quite operation.
And most importantly, zero impact on how the bike rides with the power assist switched off.
Bike up for the conversion is my trusty Trek Fuel EX9
This is a really nice bike and rides great as a standard mountain bike. With some assist to get back up the hills it will have the potential to be epic.
Build and testing is well on its way and looking very positive. If the humble friction drive is of interest to you stay tuned as the results to date are looking very promising.