TRP's New Vistar Drivetrain Tested, the UCI's Weird Tech Clampdown Explained, & Fresh 13-Speed SRAM Groups

TRP's new Vistar drivetrain combines a 12-speed cassette with a Classified internally geared hub to give you the benefits of a front derailleur without the hassle and complication, but does it work in the real world? Senior Tech Editor Josh Ross has spent months using it and explains the benefits, drawbacks, and how the hybrid 1X system compares to a traditional drivetrain. Josh has also been riding the new SRAM Force and Rival drivetrains that aim to bring the performance of Red down to a lower price point; he describes the differences between each group and tells Levy why Force is the answer. Cervelo also just released their Aspero-5 gravel race bike that trades tire clearance and comfort for pure aero-focused speed, which is the opposite approach that we're seeing with most new designs. Alvin has been testing the fresh Aspero and explains why this new "gravel bike" might be the ideal all-road machine for many riders. Lastly, the crew debates the UCI's strange new tech mandates that limit handlebar width, fork leg geometry, rim height, and aero helmets, all of which are intended to slow racers down and increase safety. But are yet more rules really the answer, and how do the UCI's decisions affect what consumers can purchase?  For your consideration: TRP Vistar with Classified Stacks up to the Big Groupset Players, but There’s a Catch SRAM Force AXS First Ride: RED Gets a Discount SRAM Rival AXS XPLR First Ride: 13-Speed Gets Cheaper First Ride: Cervelo Áspero-5 Is a Fast Gravel Bike That Might Just Replace Your Road Bike New UCI Gear Rules Incoming: Rim Height Limits, Minimum Bar Widths, and a Tech Fraud Crackdown