3. BIKE PREPARATION
Installing your Converted System Summit kit is not hard, but you do need a certain
level of mechanical knowledge. There are plenty of online video tutorials on youtube
should you get stuck. Otherwise contact us and we can help you out.
3.1 Bike /Frame preparation
The Converted System Summit kit uses a Bafang mid-drive motor which replaces your existing
cranks/Chainring(s)/bottom bracket. The folowing instructions relate to frames with a standard
threaded bottom bracket, which is currently the most commonly found type. The internal diameter
is 34mm and the width between 68-73mm. For other styles of bottom bracket you may require an
additional fitting adapters. Please contact Converted System for further info. as required.
3.2 Cranks/bottom bracket/front derailleur
Remove the pedals from the original cranks if you are planning to re-use (generally 15mm spanner
or allen key, Left pedal is reverse thread - turn clockwise to loosen)
Remove cranks,
•
Remove the centre crank bolts (normally 8mm Allen Key)
•
Using a crank extractor tool remove the cranks, (see manufacturer instructions).
If the bike is fitted with a front derailleur, break the chain to allow removal.
Disconnect the front deraileur cable and remove the derailleur bracket (this normally clamps around
the seat tube).
Remove the bottom bracket with a Bottom bracket removal tool. Start on the left(non-drive) side of
the bike. removing the cup completely.
Repeat on the opposite(chainring) side, this will be reverse thread so turn clockwise to loosen.
The bottom bracket should pull out completely.
Remove the front derailleur cables.
