• Anyone know if you can run Praxis Works Alba 48/32 rings on a Power2Max 110bcd spider?

    I can't work out if their special bolts will fit through the P2M spider:

    Any other sub-compact ring options out there that might work with 110bcd P2M? Otherwise it's likely I'll need to change crankset which means ditching the P2M and going for Rotor INPower.

  • They also machine relief on the spider to accommodate the chain's outer links.

    To achieve that, Praxis Works screws the chainring bolts straight into the inner ring, dispensing with the usual nut, and machines a cutaway in the crank spider arms so there's room for the chain.

    Source

  • So, that's almost certainly a no go. Balls.

    So, next option is a powermeter that works with 3D+ cranks (or DA9000) that also somehow allows for smaller than 110bcd chainrings to be fitted.

    I'm guessing Rotor INPower can't be retrofitted to my 3D+ cranks? Which means the cheapest option is an entire new powermeter crankset, which is clearly not that cheap an option. :S

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