4iiii PRECISION Power Meters Shimano 105 FC-R7000 Left Crank Arm Size:170mm You don’t need wall power

You don’t need wall power or a smartphone app to get the most out of your Tacx Boost trainer

With a rim depth of 71mm at the front and 78mm at the rear

CeramicSpeed PF30 to SRAM GXP Bottom Bracket

That's more warmth per gram than you'll find anywhere else

Prologo Nago Evo X10 Saddle 135mm Pro STN Rails Black

4iiii PRECISION Power Meters Shimano 105 FC-R7000 Left Crank Arm Size:170mm You don’t need wall powerUsed to pace attacks up the Alpe DHuez in the Tour de France and to hammer on the Queen K during the Ironman World Championships, the PRECISION Powermeter delivers industry leading accuracy and reliability when you need it most. Through our patented 3D Strain Gauge technology, you can be assured that the data you depend on will help lead you to your own Yellow Jersey. Packaged into a durable lightweight design and compatible with ANT+ and Bluetooth