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5 votes
Accepted

I want to change a chainring 52 R7000 to a new 52 R8000 - will it fit?

Yes, the R8000 chainring is a direct and compatible replacement for the R7000 chainring. Shifting challenges could present themselves if the two chainrings are of a different tooth count, but being ...
  • 5,067
6 votes

Shimano cassette replacement compatibility

The CS-HG400-9 from Shimano would be a suitable replacement. Your CS-HG61-9 comes in different sprocket configurations (11-32, 11-34, 11-28 and 12-36). The first number is the number of teeth of the ...
  • 1,736
3 votes

Shimano cassette replacement compatibility

Any other 9-speed cassette will do (whatever the brand), provided that the size of the different cogs (the extremes in fact) are compatible with the derailleur.
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3 votes

Old Raleigh Marathon road bike with new Shimano 105 crankset – What bottom bracket is needed?

To make the crank go in the bike, you need any ISO aka BSA threaded Shimano road Hollowtech 2 bottom bracket. Put differently, any of them that isn't Italian. You have to be concerned with the ...
3 votes

Shimano FC-RS510 compatibility with Shimano Ultegra 6800 and Shimano R7000

In the Shimano universe, their compatibility charts are very handy. This chart only shows the 11 and 12 speed road groups, but the same collection of bottom brackets exist in the corresponding 10 ...
  • 5,067
2 votes

Shimano FC-RS510 compatibility with Shimano Ultegra 6800 and Shimano R7000

Yes, the parts will be compatible. You will unify everything to road 11-speed. With Shimano, everything is compatible here. The Ultegra vs. 105 cassettes only differ in weight. For cranksets it is ...
8 votes
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Experiential difference between road and gravel bikes?

How close? This really comes down to what each manufacturer offers. Some will make their gravel frames/forks different than their road offerings to give better performance and rider experience in ...
  • 5,067
8 votes
Accepted

Why do the ISO/ETRTO numbers not match the English measure on my Tires?

The 44-507 and 47-507 are "ISO/ETRTO" tire sizes. The 44 and 47 are widths in millimeters, and the 507 just relates to the 24 inch diameter. So the 44 "should" be a little ...
  • 5,067
3 votes

Ultegra R8000 rim brake compatible with Zipp 303 Firecrest?

This is an elaboration of a comment I made on olliebulle's answer. Shimano's carbon pads may not work optimally with other rims. That does not mean they won't work on other rims. Rather, rim ...
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3 votes

Experience fitting Continental GP 5000 folding tyres to Mavic Allroad Elite Ust Disc Wheelset

NB I wanted to put this as a comment, but don't have enough rep. What's your current process for putting a tyre on/off? I've got some Allroad's and the trick for Conti Gatorskins is to move both sides ...
9 votes
Accepted

Ultegra R8000 rim brake compatible with Zipp 303 Firecrest?

For a wheel to be compatible, it needs to respect three criteria: Rim width (maximum width allowed is affected by brake shoes) Tire thickness Tire outer diameter For the BR-R8000 with carbon wheels, ...
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1 vote

Looking to put my 40-year-old mtn bike on a smart trainer

There's not an easy way of doing this that maintains easy interchangeability with your existing wheel and freewheel. Bicycles with thru-axles didn't exist in the 80s. You have a quick release or ...
0 votes

Looking to put my 40-year-old mtn bike on a smart trainer

You might have some luck fitting a 7 or 8 speed cassette to your trainer. This is because 6-7-8 speed chain is all very similar in width, and every time an additional gear is added, the cassette gets ...
  • 111k
1 vote

Looking to put my 40-year-old mtn bike on a smart trainer

I mostly know just know 6-speed freewheels. Those obviously cannot be used on a cassette-hub trainer. There are some old 6-speed Uniglide cassettes and they used a different kind of hub and will most ...
2 votes
Accepted

12 speed sram DUB chainring compatibility

I don't think you need to swap the chainring. From one of my favourite online resellers of bike parts I get the following description of a Sram NX crankset (MTB group): This means they sell the same ...

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