![Compare: 2020 Rockrider ST 120 Mountain Bike, / - 27.5" vs ST 520 Mountain Bike vs St 520 Mountain Bike, - 27.5" – 99 Spokes Compare: 2020 Rockrider ST 120 Mountain Bike, / - 27.5" vs ST 520 Mountain Bike vs St 520 Mountain Bike, - 27.5" – 99 Spokes](https://99spokes.com/api/og/compare?i=%2Frockrider%2F2020%2Fst-120-mountain-bike-27.5%2Fthumbs%2F400%2Fb37cf.jpeg%2C%2Frockrider%2F2020%2Fst-520-mountain-bike%2Fthumbs%2F400%2F12155.jpeg%2C%2Frockrider%2F2020%2Fst-520-mountain-bike-27.5%2Fthumbs%2F400%2F34d66.jpeg&token=99384d13423c10fe0b5df4ec21ac7d283b26b3336bd87d32c27d4abf32dfdfa0)
Compare: 2020 Rockrider ST 120 Mountain Bike, / - 27.5" vs ST 520 Mountain Bike vs St 520 Mountain Bike, - 27.5" – 99 Spokes
![ALL NEW ROCKRIDER ST 120 VS ROCKRIDER ST 520 || DECATHLON CYCLES 2021 | BEST BTWIN GEAR MTB IN INDIA - YouTube ALL NEW ROCKRIDER ST 120 VS ROCKRIDER ST 520 || DECATHLON CYCLES 2021 | BEST BTWIN GEAR MTB IN INDIA - YouTube](https://i.ytimg.com/vi/8XT3zztShhU/sddefault.jpg)
ALL NEW ROCKRIDER ST 120 VS ROCKRIDER ST 520 || DECATHLON CYCLES 2021 | BEST BTWIN GEAR MTB IN INDIA - YouTube
![Compare: 2020 Rockrider ST 120 Mountain Bike, / - 27.5" vs ST 520 Mountain Bike vs St 520 Mountain Bike, - 27.5" – 99 Spokes Compare: 2020 Rockrider ST 120 Mountain Bike, / - 27.5" vs ST 520 Mountain Bike vs St 520 Mountain Bike, - 27.5" – 99 Spokes](https://d2yn9m4p3q9iyv.cloudfront.net/rockrider/2023/27.5-inch-mountain-bike-st-540/thumbs/1000/4734b.webp)
Compare: 2020 Rockrider ST 120 Mountain Bike, / - 27.5" vs ST 520 Mountain Bike vs St 520 Mountain Bike, - 27.5" – 99 Spokes
![ALL NEW ROCKRIDER ST 120 VS ROCKRIDER ST 520 || DECATHLON CYCLES 2021 | BEST BTWIN GEAR MTB IN INDIA - YouTube ALL NEW ROCKRIDER ST 120 VS ROCKRIDER ST 520 || DECATHLON CYCLES 2021 | BEST BTWIN GEAR MTB IN INDIA - YouTube](https://i.ytimg.com/vi/8xTpJKF3QUQ/sddefault.jpg)
ALL NEW ROCKRIDER ST 120 VS ROCKRIDER ST 520 || DECATHLON CYCLES 2021 | BEST BTWIN GEAR MTB IN INDIA - YouTube
![Compare: 2020 Rockrider ST 120 Mountain Bike, / - 27.5" vs ST 520 Mountain Bike vs St 520 Mountain Bike, - 27.5" – 99 Spokes Compare: 2020 Rockrider ST 120 Mountain Bike, / - 27.5" vs ST 520 Mountain Bike vs St 520 Mountain Bike, - 27.5" – 99 Spokes](https://d2yn9m4p3q9iyv.cloudfront.net/rockrider/2020/st-120-mountain-bike-27.5/thumbs/1000/b37cf.jpeg)