Following on from last weeks Fresh Goods Sunday, with the lockring removed I could finally replace the chainring / cog. You have to remove a black rubber o ring first, this is very thin so have to take it steady so as not to damage it. Then remove the chainring which happened to be a FSA one. The quality looked good. After that there is a silver alloy washer behind. I removed that to clean the bb spindle area etc. Once all cleaned I refitted the spacer, fitted the new chainring, refitted the rubber o ring and refitted the lockring / bash guard. All in it did not take that long. The Miche replacement is thinner than the FSA cog and I noticed that on the back of the FSA cog there is a section machined out to compensate for the extra width on the teeth. The Miche cog did not have this and looks cheaper but it will not be doing that mush mileage.
RRP £6.99 and I paid £9.30 inc p&p from Cyclomonster
Manufacturers blurb -
Heat treated special steel sprocket to fit E-Bikes with a Bosch Motor.
EBIKE BOSCH MOTOR
- Compatibility: Performance Line drive system
- Chainring Teeth: 14 - 15 - 16 - 17 - 18 - 19 - 20
- System: Active Line drive
- Material: Heat treated special steel sprocket
- Colour: Black
- Sprocket Weight: 32g
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