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St 100 Rr Cn Black

St 100 Rr Cn Black

27.5" double rims (XS 26 1 wall), Ergofit saddle

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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.
Easy to use

Change speeds quickly thanks to the grip shifters


Control your path with tyres with side lugs and V-brakes.

Lifetime warranty

ROCKRIDER offers a lifetime warranty on the frame, handlebars and stem


Progress: light frame, 21 speeds, 27.5" double-walled wheels (26"1 wall in XS)

Cycling comfort

Enjoy:the high position (CGF frame), 80mm suspension, hammock saddle, flex stem

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?




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