Speed

“Old” vs new Shimano 9-speed compatibility?
Are all Shimano 9 speed shifters compatible?Are all 9 speed cassettes the same?Can you mix and match Shimano components?Are all Shimano derailleurs co...
Can I use a SRAM 10-speed cassette on my Shimano 105 9 speed groupset?
SRAM's cassettes and chains are compatible with all of Shimano's groupsets, and vice versa. ... Similarly, there is no need to match the level of the ...
1x12 Crankset to my 9speed cassette/chainring
Can I use 12 speed crankset with 10 speed cassette?Can you use a 12 speed crankset with 11 speed?Can you use an 11 speed crank with 10 speed cassette?...
Any countries where there's a general speed limit for bicycles?
Do speed limits apply to bicycles?What country has no speed limit?Are there speed limits in Europe?Which country has the highest speed limit?What is t...
What is the world record for fastest speed unpaced, upright, on a road bike, on the flat, outside, in regular clothes?
What is the fastest speed recorded on a road bike?What is the fastest anyone has ridden a bicycle?What is the top speed on a bicycle?Is 20 mph fast on...
Can I 'upgrade' a 9 speed Tiagra RD to Sora to lower my gears?
Yes, there should not be any problem with doing that change. It should work perfectly fine, you will just need a longer chain. I have this Sora with 1...
Can I use chain rings that were on a 9 speed for my 11 speed cassette or do I need to get 11 speed chain rings?
Will a 11 speed chain work on 9 speed?Are 9 and 10 speed chainrings interchangeable?Can I change a 9 speed cassette to 12?Will a 10 speed chain fit an...
Is a Single Speed bike faster than a Geared bike? [closed]
If you are on a geared bike and using the exact same gear ratio as a single speed, of course they are roughly the same speed. But then you "spin out",...
Sunrace 10 Speed 11-46T cassette rear derailleur compatibility
Can you use a 11 speed derailleur on a 10 speed cassette?Can I use Sunrace cassette with Shimano derailleur?Are Sunrace cassettes compatible with SRAM...