Tern Fixes the GSD Guide Pulley Problem

If you own a Tern GSD and put a lot of miles on it, you may have experienced the guide pulley prematurely wearing down. Tern has released a new pulley setup that looks more like a derailleur guide pulley and should wear much longer with your chain. (Don’t forget to lube and clean it!)

Tern GSD Pulley Part Numbers

Complete setup for the first install: F.07004.0027.00.00
Replacement guide pulley part: A.07004.0094.03.00

Purchase online or your local Tern dealer

Installing New Pulley Parts

For GSD Gen 1 S10 and S00

1. 45mm bolt
2. 12mm washer
3. Guide wheel with u-clip installed over
4. 10mm bushing
5. Slide onto the frame and add grease
   2. 12mm washer
6. M6 stainless steel nut tightened down
7. 1/4 inch spring washer
8. M6 locknut tightened down

For GSD Gen 2 S10

1. 55mm bolt
2. 12mm washer
3. Slide on to frame
4. 10mm bushing x2
5. Guide wheel with u-clip installed over
6. 12 mm washer
   • Grease
7. M6 stainless steel nut tightened down
8. 1/4 inch spring washer
9. M6 locknut tightened down

Have any questions? Let me know!