Just in case you are confused, here's something else.

Croxden

Esteemed Pedelecer
Jan 26, 2013
2,061
1,327
North Staffs

Jimod

Esteemed Pedelecer
Aug 9, 2010
1,054
626
Polmont
I like the look of that but, I suspect you're right. It won't be as good as it seems.
It says the battery is 22v
 

trex

Esteemed Pedelecer
May 15, 2011
7,703
2,669
that's a very promising kit

 
D

Deleted member 4366

Guest
There's some very long threads on Endless Sphere on these things. Do a search for friction drive and read them before investing in that one.
 

trex

Esteemed Pedelecer
May 15, 2011
7,703
2,669
this one is much better designed and much more sophisticated than the friction drive stuff discussed on ES.
Using the bottom bracket to mount the friction kit is inspired.
It has a pedelec sensor and properly unloads from the tyres when you stop pedalling.
It solves one big problem with converting bikes fitted with hydraulic brakes.
and it's also easy to scale up in speed and power.
If I were Bosch, I'd buy these guys out rightaway,