9 speed rear cassette on rear wheel kit...

[James Farley]

Hello you friendly bunch.

I hope that someone might be able to answer my question. I have purchased a rear wheel 1000w 48v Dillenger kit which is hopefully being delivered today.The dropout widith on my donor bike is 135mm. Dillenger state that:

"Rear wheel kits 135mm approx. dropouts. For wider rear dropouts (Fat bikes and other customs) visit our website.

This dropout clearance is standard for most bikes. If your front fork dropouts are very close to being the right measurements, usually some minor persuasion is all that is required to achieve the fit, the tighter the better."

Does this mean that I might be able to keep my 9 speed rear cassette and shifter or might I have to change to 7 speed?

Thanks in advance!
Jim

 

[Deleted member 4366]

It's a free-wheel motor, so you'll need a new gearset. If you want to pedal, you'll need a DNP or Sunrace freewheel set with 11T top gear. I heard that Cyclezee are out of stock, so you have to get them from Germany.

 

[trex]

I have never come across a 9-speed freewheel.
I thought 11T sprocket has too small diameter to fit a freewheel.

 

[James Farley]

Bugger. What is different between those freewheel sets and other ones that are available from chainreaction for example?

 

[trex]

you need a special tool to remove some of them.
If you can't find the 9-speed freewheel, the alternative is to replace shifter and derailleur to a more common 7-speed Tourney.
A note of caution to all those who consider their first conversion: post pictures of your bike and shopping list here before hitting the buy button.

 

[Deleted member 4366]

A nine-speed free-wheel will probably be too wide. DNP do 9 and 10spd free-wheels, but I've never seen them for sale, and I don't know how wide they are.

If you stick with a 7 speed one, you might get away with just re-setting the end-stops on your rear derailleur.

You can fit a cheap Shimano free-wheel gear-set, but they have 14T top gear, which will be much too low to keep up with the pedals. You'll see what I mean as soon as you try and pedal the bike. You need something like 48T/11T top gear, maybe even 52T/11T, so you'll probably want to change your crankset too.

 

[James Farley]

OK, I've bought a 7 speed Shimano cassette for the meantime. I assume that this shifter should be ok?

http://www.evanscycles.com/products/shimano/altus-m310-7-spd-rapidfire-shifter-pod-ec043008#features