NexGen3D: Mountain Bike Roller Based Chain Tensioner and Guide
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Helps eliminate chain bounce and chain jumping.
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- Printables
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- Outdoor Sports
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- Creative Commons — Attribution — Noncommercial — Share Alike
Bicycle chain tensioner and guide, helps to reduce chain bouncing on mountain bikes when hitting rough terrain.
Upper part needs to be printed from TPUI, lower half and pulley should be printed from PETG-CF or ABS, in my case I used PC-CF.
The pulley also has a 1mm thick replaceable TPU wear ring.
Parts required:
- 2 x Cable Ties
- 2 x BHS M3x12mm + 2 x M3 Heat Inserts
- 1 x BHS M3x24mm + 1 x M3 Heat Insert
- 5 x BHS M2x10mm + 5 x M2Heat Inserts
- 1 x 608 Roller Skate Bearing
- 1 x 3D Printer :)
Please print using the orientation in the last image provided, the pully is very easy to assemble, the 608 bearing is sandwiched between the pulley shells, please see the exploded image, mount it all up with the pulley out, then lift the chain with the pulley and screw the 24mm bolt through.