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2 votes

Replacing pulley wheels on a RD-m3100 with non original parts. Can I use other Shimano pulley wheels?

Today I did the swap with no issues. As stated, the mentioned pulleys are the same width of 8.2mm between the two metal covers. They are the same number of teeth, and the fastening bolt is the same ...
WornChain's user avatar
  • 1,513
1 vote

Does bike size matters? what if the bike size larger than it must?

Length (reach) is usually the most important aspect in bike sizing. Once you have a frame in a certain size you can only adjust reach by changing the stem to a shorter or longer one (disregarding ...
Michael's user avatar
  • 27.8k
1 vote

Does bike size matters? what if the bike size larger than it must?

If the price is right, it can be worth it as long as the size is close. You can get a short stem to reduce the reach if needed, and as long as you can pedal comfortably, the size might be close enough....
Oscar Smith's user avatar
3 votes

Bike repair put a 700-20 tire on my 700-25 road bike, should I replace it?

Road bikes often have Presta valves. These have an "acorn nut" on top which needs to be loosened to allow the stem in the middle to push into the valve under finger or air pressure from the ...
Criggie's user avatar
  • 125k

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