Thinking about switching from my P1’s to a Quarq on my Speed Concept. Not sure which to get and what I need to make it happen. I have all Shimano parts. Help!
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Re: Quarq Help. [Insilvis]
[ In reply to ]
What crankset do you have now?
how many bolts?
find the one that matches here, with desired BCD (110 for compact gearing (50/34 or 52/36) or 130 for standard 53/39 and up)
https://www.quarq.com/product-category/power-meters/shimano/#sm.00001y5beua1h1fkcrnf84w4838rm
how many bolts?
find the one that matches here, with desired BCD (110 for compact gearing (50/34 or 52/36) or 130 for standard 53/39 and up)
https://www.quarq.com/product-category/power-meters/shimano/#sm.00001y5beua1h1fkcrnf84w4838rm
Re: Quarq Help. [Insilvis]
[ In reply to ]
Insilvis wrote:
Thinking about switching from my P1’s to a Quarq on my Speed Concept. Not sure which to get and what I need to make it happen. I have all Shimano parts. Help!For the Trek BB90 bottom bracket you will need a GXP Quarq. If you have a Shimano crankset on the bike now, you will need a new BB bearing kit for GXP from Trek. It will have a smaller NDS 22mm bearing and the proper shields and seals for the GXP.
The you just have to decide on which Quarq spider/chainring system and crank length you want. Basically you can go with the 4 bolt Shimano chainrings or industry standard 5 bolt chainrings. With either choice you have two additional choices - Shimano 9000 series or latest 9100 series rings - or standard 5 bolt vs SRAM hidden bolt rings.
Choosing between carbon and aluminum arms means a slight weight difference and a bit shorter arm length choice with carbon.
Hope this helps
Re: Quarq Help. [kppolich]
[ In reply to ]
I have dura ace 9000 55/42
Re: Quarq Help. [Insilvis]
[ In reply to ]
Quarq DFour is the match for that cranskset if you want to continue using 9000 series rings. Or DFour91 if you want to use the 9100 series rings.
Re: Quarq Help. [Insilvis]
[ In reply to ]
This one then: https://www.quarq.com/...ua1h1fkcrnf84w4838rm
You need a GXP quarq (not bb30) and then you need a new bb in your SC (GXP bearings from trek).
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