Interbike 2012: SRM Adds Power Meters for Latest Shimano, SRAM & FSA Cranksets

I’m blown away by the idea fresh 7800 crankarms are still available. Did SRM take some insanely large order of them or something years ago?

I think that they probably use the 7800 style crank arm because the newer ones couldnt be rounded off in the same manner and still look halfway decent. If it’s good enough for Team SKY…

just curious…. the Astana riders, and now the SRM Sram versions both have the chainring bolts in standard formation on the powermetres…

but aren’t those Sram Yaw chainrings designed to be positioned with a chainring bolt under the cranks arm (if you note this is the way the Quarq Red crankset is). Orienting them this way will throw the shift pins/ramps and power phases out of whack….

Sram has started making standard bold pattern chainrings for use with their Yaw front derailleur. I can only assume that’s what SRM are using here.

SRM uses the 7800 arms as the 7900 and 9000 arms cannot be machined from the backside in the same manner as the 7800 arms (to create the crank/spider interface). From previous conversations at Interbike and Eurobike, SRM has mentioned that Shimano continues to make the 7800 arms for them – though they never indicated the quantities. I imagine this is based on demand from the pro teams wanting to continue the use of SRM’s.