Originally Posted by
racersdad
Hi, I'm new here, relatively new to track racing and would appreciate any help. I'm building up a Felt TK FRD for my junior son who will be focusing on pursuit events. He started racing track in April, raced a borrowed bike at Junior Worlds a couple weeks ago and now this is to be his bike for the coming seasons. I'm trying to find a crankset/powermeter combination that will work well and ideally be aero. I've come up with 3 options. The Felt is BSA threaded.
1. Rotor 3D24 Crankset, with SRM or Power2Max power meter. Issues: SRM is very $$$ and Power2Max has no availability until their new model comes in - which has no ETA
2. Vision Track Crankset. I believe (to be confirmed) that I can fit a Stages FSA386EVO crankarm power meter to the Vision crankset. But I haven't found anyone with knowledge of this crankset in use. This crankset is 386EVO, there are numerous BB options to mate to the BSA threads.
3. Dura Ace with Stages (or SRM for that matter)
I would greatly appreciate any advice or thoughts on the relative merits of these options. Anyone used the Vision Crankset?
thanks!
If you are building a system for your son to use for several years,
invest in an SRM kit. It's worth it in the short term and
especially in the long term.
You can buy alternate crank arms with different lengths for the SRM track crankset for $200/pair. I'd imagine that as an aspiring pursuiter, he will be experimenting with crank lengths as well as other parts of the bike. To put that into perspective, a new set of Dura Ace crank arms costs $400-450/set.
You change the drive-side crank arm by using a star nut wrench and remove the crank arm from the power meter spider. You will then have to recalibrate it. It's not hard. I've done it in my living room. Or you can simply mail it in to SRM and have them do it. Let left side crank arm is removed like any other crank arm.
Buy the kit with the PC7 head unit. Not the PC8 (much more expensive). The 7 has all of the same data, it's just older.