A refined drive unit gives the XR the capacity to faithfully replicate inclines of up to 24% and the ability to produce over 3,600 Watts of resistance at 60 KMPHElite's unique and proven OTS (Optical Torque Sensor) technology has allowed precision to a point where Elite can now have the Direto-XR independently certified to a class-leading 1.5% power accuracyOversized gearing wheel increases flywheel RPM's, generating a smoother, more realistic feelCompact and easy to carry when folded but super stable once set-up, the Direto's extra wide feet are adjustable to allow rock solid performance on uneven surfacesThe body of the trainer has been tweaked to make it compatible with the bulkier rear derailleurs often used with 1 x drivetrainsCompatible with 142 x 12 and 130/135 mm Q/R frames out of the box , adaptors available for 141 mm QR, 148mm Boost and 157 mm SuperboostIncludes a 2-month free Zwift subscriptionNow comes with a custom front wheel riser block includedCompatible with 9, 10 and