Write the first review
Made for getting away from it all on your first mountain bike tours. Have fun as you tackle small obstacles in the great outdoors
Comfort first:: cgf frame with raised position, 80mm suspension, Ergofit hammock saddle with Flex stem, 27.5" wheels (26" in XS") so you stay comfortable as you ride.
Sizes guide


view all stores

Cycling comfortEnjoy:the high position (CGF frame), 80mm suspension, hammock saddle, flex stem
EfficiencyProgress: light frame, 21 speeds, 27.5" double-walled wheels (26"1 wall in XS)
PrecisionControl your path with tyres with side lugs and V-brakes.
Waranty5 Years
Technical Information

This Rockrider ST100 has a history
Entirely designed and developed in France at the B'Twin Village (Lille), this mountain bike is the fruit of the work of an expert team of passionate mountain bikers. To best meet the need for comfort and ease expressed by beginner mountain bikers, the team created, designed, and tested the ST100, involving riders at every stage of the project. Whether you're heading out alone, with friends or family, the fun of riding the ST100 mountain bike has been fully approved by users!
The ST100 mountain bike is suitable for both men and women. Carefully designed down to the smallest detail, with a noticeable slope on the top tube, with a wide range of sizes (XS: 1.45m to XL: 2.00m), the CGF frame of the ST100 is light, comfortable, and very versatile. To make the most of the improved comfort, the women of the Rockrider team recommend the 500 Women's Sport saddle that is adapted to women's morphology.
How do you choose the right ST100 mountain bike size?
Several sizes available: S: between 1.55m and 1.64m M: between 1.65m and 1.74m L: between 1.75m and 1.84m
Information / Concept / Technology
Frame (for bike) : 100.0% Aluminium

Stockage tips
After washing, rub with a dry cloth to remove all traces of moisture. Store your mountain bike in a cool, dry place, away from corrosive products and salty air.
    Show results for