I am just about to embark on my first ebike build and need all the help I can get....

After a lot of reading I have decided the TDSZ2 seems to be the way to go. I am no longer built for my old flat bar road bike so couldn't resist a Whyte 604 compact in the sale.

Before taking the plunge and orderinga kit, I have a few concerns / questions.

See picture attached, there does not seem to be much clearance between the 32T crankset and frame. The Tongsheng comes with a 42T so is obviously going to be bigger but does it sit out further. I've only got about 15mm of clearance (176.5mm -136.1mm / 2) means I am going to need 21.2mm of clearance at least unless it sits out further... Am I also going to need a new chain. Full set up below.

Cassette: Microshift CS-H093, 11-46, 9 Speed

Chain: SunRace, 9 Speed

Crankset: Prowheel, Alloy, 3pcs Cranks Single Narrow Wide, 32T

 

I am also unsure of the legalities of the throttle version. Woosh only seem to have this version in stock at moment but I thought throttles were a no no ? Plus bike has hydraulic brakes so would need to fit sensors so more messy wires....

 

Finally, bike currently has nice tidy internal cable routing. It comes out under the crank. I am thinking of just removing the plastic guide underneath or would I need to reroute these two cables ? That is going to be beyond my abilities so would need to talk to our local bike shop.... A couple more pics attached.

 

Thanks in advance,

 

Rik

You have a fair amount of work to do to fit a Tongsheng to that bike.

I would just fit a rear hub for a diy job. Don't get me wrong - I love my Tongsheng but if you don't like messing about or feel uncomfortable changing stuff with that particular bike then why do it?

You have a fair amount of work to do to fit a Tongsheng to that bike.

I would just fit a rear hub for a diy job. Don't get me wrong - I love my Tongsheng but if you don't like messing about or feel uncomfortable changing stuff with that particular bike then why do it?

I second this. Assuming the cables are re-routed, the BB shell still looks flared and wider mid section?

 

The chainstays also look like they will be tight. The only way to know is very careful measurement or try. If you want to measure, one way is to get a scale diagram and print to size and offer that up.

 

For my bike I just used calipers and measured carefully and it was easy enough to check.

 

But looking at the photos, I am skeptical the TSDZ2 can be made to fit that frame.

Thanks ever so much for your replies. Nearly took the plunge and ordered one up. any recommendations on a rear hub for the bike ?