Playtri Retul Dynamic Bike Fit Shimano GRX Most adjustable single bottle system

Most adjustable single bottle system with both cage height & angle adjustments

With the E-Thru axle skewer you use an axle skewer to put your mountain bike in the Tacx trainer

Dimensions Interior dimensions31"L x 18"W x 21"H

Safe to use with all neoprene found in wetsuits (triathlon

Playtri Retul Dynamic Bike Fit Shimano GRX Most adjustable single bottle systemCombine Playtri's 20 plus years of bike fitting with the data from computerized motion capture analysis. Motion capture cameras record a rider's position as they pedal on the bike in order to capture the full range of bio mechanical movement. Rather than adjust a fit based on static measurements, the Retul system allows Playtri's expert bike fitters to see how you and the bike work together. This complete picture of both athlete and machine makes for