Conversion of mountain bikes to 1×9 or 1×10

With large cassettes equipped with 9 and 10-speed mountain bikes (11-34 or 11-36), the 27 or 30 gearboxes Speed ​​Bikes Too close to each other. This takes too much time between gears and redundant gears. Spend less time shifting (and tuning the first gear) and take more time to ride!

1X conversion removes all front displacement mechanisms and foreign chains. Pleasant side effects of the 1X are the lost weight of the two front sprockets, the first gearbox, the gearbox and the cable. You need to shorten the chain, add a chain retention device and preferably switch to a short rear gear unit.

The 1X crankshaft puts more emphasis on pedaling than shifting. If your grandma's fitting is too hard, stand up and rotate the pedals. You will be surprised at how steep a hill you can stand up with a 34 or 36-wheeled large wheel and a 30-36 tooth-shaped first chain. You will also make these hills much faster than your buddy, who will crawl at the speed of the walk as the crazy man by setting up the usual grandmother / grandmother.

The conversion process:

  1. Remove the front derailleur and the front derailleur, discard them in the "Never Need But I've Goed All Old Bicycle Parts" bin.
  2. Remove the small and large sprockets. The crank may need to be disassembled and there may be a need for some small spacers or shorter bolts to re-install the center ring
  3. Insert a short rear derailleur (optional, but you really do not need any travel that long cages change and a short cage holds the chain right)
  4. Shorten the chain
  5. Select a chain retention device. Usually, the first gear is to keep the chain by dragging the chains of the first chain and removing it, we need something else to occupy. Some people had a great deal of success with the catwalk with two bashors. Others prefer the clamping chain guide to make the chain safer. This is the only part of the conversion that adds weight at all, so be sure to choose a chain retention system that optimizes weight savings.


Switching to the 1X setting on mountain bikes makes the bike faster, easier and simpler. Obviously win-win situation. The only disadvantage I think of 1X9 and 1×10 is that it can not pedal faster than 25-30mph (depending on which one you have chosen). But this is really mountain biking! Anything is faster and you have to walk away. Have fun!

Source by Cameron Avery

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