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Clean your transmission

| Blog, Knowledge, What Mountain Bike | 14/10/2011 09:22am

Justin Loretz talks you through the steps to getting your transmission clean and shiny

Hit the bottle
Fill a 500ml bottle with 2-3in of degreaser, drop your chain in and shake for a minute. Take the chain out and brush it to remove any gunk. Rinse in clean water, then reprep with lube before wiping away any excess with a rag.

Cassette player
Put the cassette in a bowl and agitate degreaser into it with a stiff bristle brush. When the outer edges are shining turn the cassette over to do the underside. Do inside the fitting hole to clean the splines, and the rear hubshell. Rinse and air dry.
Pedal punishment
Clipless pedals have a hard time. Servicing them is a good start, but also give them a good going over with degreaser. A 1.5 or 2mm Allen key is handy to dislodge stubborn debris. When they’re clean and dry add a bit of grease to the springs.
Keep tabs on it
Remove the rings and clean the bolts, rings and arms in the same way as the cassette in step 2. Pay attention to the backs of the rings, which can hold on to dirt. Use Loctite on the chainring bolts when you reassemble everything.
De-rail the dirt
Derailleurs don’t need to be removed to deep clean them. While you’ve got the chain off and rear wheel out, go over it with a firm brush and some degreaser. If you decide to remove/replace the jockey wheels, re-Loctite the bolts when rebuilding.
BB-rilliantly clean
Bottom brackets get crusty. Pull the cranks out of the frame and without removing the BB cups, use a soft cloth with degreaser on it to wipe the seals clean, making sure not to push any dirt from the outside in. Apply grease to the lip seals and reinstall.
The wheel deal
When you whip the cassette off to clean, delve into the driveside flange of the rear wheel. Rinse the wheels with hot water, then take a brush and degreaser to clean the hubs and rims. Use a toothbrush to get in between the spokes.
The last post
Not strictly transmission, but the seat post does hide dirt. Take the saddle off, clean the seat post and saddle underside. Reassemble using light grease on the bolts to aid tightening. Add grease or carbon paste to the seat post shaft to prevent damage.

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This entry was posted on Friday, October 14th, 2011 at 9:22 am and is filed under Blog, Knowledge, What Mountain Bike. You can follow any responses to this entry through the RSS 2.0 feed. Both comments and pings are currently closed.

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