• Chainline quiz:

    1x10 Shimano drivetrain with narrow-wide ring up front and 10-speed cassette on Deore FH-M510 ‘9-speed’ freehub, 135mm axle, no spacers on cassette.

    Current chainring is sat 43.5mm from centre of frame and I’m getting slight chain rub on small cogs.

    Should the chainring be further out?

  • If you've got a 10 speed cassette on a 9/10 speed freehub, you should have a 1mm spacer between the freehub and the cassette. Won't necessarily solve all issues, but won't make them any worse and will make them slightly better.

    Due to the cog spacing, a 10 speed Shimano cassette is actually narrower than a 9 speed one.

  • Thanks!

    I’m having a new set of wheels built with the correct 130mm rear hub, so will rejig everything once they’re ready and start again.

About

Avatar for Brommers @Brommers started