UNO Electronic MTB Groupset

The ROTOR UNO Electronic MTB Groupset brings you the best value we have for MTB drivetrains to boost your performance. Featuring Kapic crank arms in combination with Direct mount chainrings and our 30mm spindles.

With our UNO Electronic MTB shifting system, you’ll experience the most precise and responsive shifting available. The derailleur, in combination with our app, allows you to customize your shifting with micron-level precision. And at just 453g, it’s currently the lightest electronic groupset for mountain bikes on the market.

Our 1x Direct mount chainrings are the lightest and stiffest ones we have for MTB. The direct mount technology integrates the spider in this chainring. Reducing the weight to the minimum needed for each different chainring. Given there is no bolts and nuts it is much more stiffer than chainring + spider assemblies. And it is also available in round or oval configuration!

Last but not least, you’ll be riding Kapic cranks. One of the best stiffness to weight ratio crank arms for MTB. The Kapic crank arms weigh under 360g in any size and feature 30mm spindles. Which are significantly lighter than 24mm as these are made of 7075 T6 aluminum alloy as well as stiffer as these are thicker.

If you want one of the best value electronic drivetrain for your MTB, this is the groupset you’ve been looking for. Fully compatible with any MTB drivetrains from 10 to 13 speeds, it gives you total freedom to upgrade or fine-tune your setup. Get off the road, get of the standard!