Ive taken on the task of rebuilding a 1986 KX125E. Follow along as I delve elbow deep into this greasy worn out mess of a bike.
If this is your first visit find the very first post in the archive and start reading there, it will make more sense.
Saturday, March 24, 2012
Rear Tire and Sprocket
The rear of the bike is almost ready to go. I received a couple more parts this week so I mounted them up.
I ordered Renthal black 48 tooth sprocket for the rear and a stock size 12 sprocket for the front. I received the correct one for the rear but the front one was shipped wrong. So That part will have to go back.
I decided to go with the Bridgestone tires so I ordered a M404 100/90/19. It looks really good all mounted up.
I also ordered a Renthal R1 chain to complete the set up. The sprocket that is on the counter shaft in the bottom photo is a 13, it is new and I will probably run it also just to see which I like better the 12 or 13. From what I remember about gearing adding a tooth to the front is like adding 3 to the rear. If that is not right let me know.
I still need a rear chain guide, the swing arm chain sliders as well as a mud flap. I found and ordered a chain guide today, it doesn't look to be in the best of shape but I think it is some thing I can work with.
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