Mentioned at Eurobike but not available for photos, the one-piece fully machined Rotor Spidering now has pricing and a ship date. The design combines 46 and 30 tooth chainrings into a single part, bringing weight down to just 144g (claimed). While the low weight and easy direct mount design are two of the highlights, the real bonus is being able to run such a small inner chainring for wide range compact gearing on your gravel or cyclocross bike…
The Rotor Spidering is CNC’d from 7075 T6 alloy, then pinned to assist the chain moving up to the large ring. In addition to lower gearing, it should also fit more bikes thanks to the lower profile. As gravel bikes open up the chainstays to fit larger tires, many have switched to single chainring setups to maintain proper clearance, so this could be an option for those who still prefer a double.
The direct mount design will fit standard and InPower versions of Rotor’s 3D+, 3D and Flow cranksets with a 43.5mm chainline. It’s compatible with both 10- and 11-speed chains and drivetrains. It uses a round “NoQ” chainring profile, not oval. Look for it to start shipping around Christmas time and retail for a very reasonable $164.99 (€149,99).
