Sram 11sp B Bolt washers

thingiverse

!REALLY BASIC DESIGN ALERT! The lower end SRAM 11sp deraillieurs tend to develop (or even come stock with) a bit of side to side play which can cause some poor shifting performance. you can apparently buy a B bolt kit from the higher end derailleurs, but that costs moneys and not spending moneys is why we bought a 3d printer right? This is a 30second install, print the washers, undo the derailleur from the hanger, pop the washer on, grease it up lightly, re-install the derailleur. This fix may work better for some if the b bolt retention clip is removed. i didnt seem to need to, and this was for a mate so i probably wont get much of a chance to stuff around with it more to see. there's 3 sizes here, 1.5mm, 2.0mm and 2.5mm. pick the size that suits the amount of slop you have while still giving enough freedom to move back and forward when tightened. the idea is that they're semi-consumable, rather than having a steel washer wear out your alloy parts or a rubber o-ring disintegrate in a couple of rides, you should see this last a while but not create further problems. This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/dCCRl8kI8NZ