Viewing 11 posts - 1 through 11 (of 11 total)
  • Mechanic question please
  • Premier Icon michaelmcc
    Free Member

    What do I need to put a bigger chainring on my single speed?

    It’s an old XT crank maybe yeah 2003 ish,4 bolt, currently has a 36t E thirteen ring .

    Can replace the ring without taking off the crank?

    Was trying to post a photo but I’m not great at IT.

    Thank you!

    Premier Icon kayak23
    Full Member

    Yes you can normally remove the bolts on a 104mm bolt centre diameter, 4-bolt ring and shimmy the ring off over the crank arm, rotating the pedal to allow it to pass.

    When you replace it, check the length of your chainring bolts. It’s possible you’ll replace it with a thicker ring and need longer bolts.

    Premier Icon b230ftw
    Free Member

    Worth a try. Sometimes a ring can be faffed with and you can pull it over the chainset tabs I’ve had rings where I couldn’t do that as they had too much material inside to fit over but you can only ever find that out when you try it

    Premier Icon lobby_dosser
    Full Member

    You might need the crank nut screwdriver thingy, to stop the retaining nuts from spinning. Sometimes you dont need it.

    Premier Icon michaelmcc
    Free Member

    Ah okay, all very helpful! I’ll give it a bash and hopefully do it without the tools.

    And how do I know what bolt circle size I need? I see 104 mm, etc.

    And can anyone recommend a decent double wide ring for single speed?
    Race Face seem popular on CRC.

    Thanks!

    Premier Icon neilthewheel
    Full Member

    BCD should be written on the chainring somewhere.

    Premier Icon rockthreegozy
    Free Member

    2003 XT will be 104pcd

    The model no. will be on the back of the crank arm near the pedal threads if you need to confirm

    Premier Icon kayak23
    Full Member

    Just stick a ruler across a couple of bolt holes. Should be 104mm centre to centre.

    Premier Icon michaelmcc
    Free Member

    Thanks a lot lads!!

    Race Face or Hope okay?

    Premier Icon akira
    Full Member

    You’ve got a longer chain to go on I presume.

    Premier Icon montgomery
    Free Member

    How much bigger? Big enough that chainstay clearance might become an issue with the current chainline?

Viewing 11 posts - 1 through 11 (of 11 total)

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