A new budget friendly cycling power meter on the market in 2021, the PowerBox SC is an in-house developed meter from FSA. It’s a single sided (left) meter with both ANT+ and BLE connectivity and an impressive battery life claim.

*FSA PowerBox SC Crankset Technical Specifications*
● Aluminium Crank AL6061/T6
● 30mm AL7050 BB386EVO spindle // 24mm MEGAEXO (Shimano BB compatible).
● AL7075 100% CNC chainrings (53/39T, 52/36T, 50/34T, 48/32T, 46/30T).
● BCD 120/90 mm, CL:45mm, QF:149mm. (both a little wider than a standard Shimano chainset)
● Fits Shimano and SRAM 11 speed systems
● Crank Length: 145, 150, 155, 160, 165, 167.5, 170, 172.5, 175mm.
● Pod Weight: 20g (w/ CR2450)
● 793g (170mm x 46/30T) // 891g (172.5mm x 52/36T)

*Power Meter Specs*
● Battery: 1x CR2450.
● Battery Life: 400/450 hours
● ANT+ / Bluetooth Smart.
● Data: Power, Cadence, ‘Virtual’ L/R Balance. (I’ll discuss this in detail shortly…)
● Accuracy: ±1% (Claimed).
● Waterproofing: IPX7
● ATC.