By diveratt on Skatehive
The other day when I took the e-bike up to Haytor for a good up hill test I found that I did not need to change from the centre 33 tooth ring on the crankset at all during the ride. So the other rings on the triple and the derailleur may as well go. So a bit of 3D printing is required to make a carrier for the PAS sensor magnets but that an easy job as there are a few files on Thingiverse. The main reason as the steel 22 tooth ring will be removed the sensor ring will have nothing to grip on to. The PAS ring fits the 3D printing a treat. The first job on the bike is to remove the derailleur cable and selector. Then the crankset needs to be pulled, one thing I have found is because the ISIS bottom bracket is hollow it needs an 8mm bolt placed inside for the puller to push against. Ok that’s off so I may as well replace the chain while I’m at it and put my new waxed 9 speed e-bike chain on. One of the big benefits of waxed chains over conventional oil lubricated chains is the are a lot c