![Compare: 2020 ROCKRIDER 27.5" ST 520 MTB vs 27.5" ST 530 Mountain Bike vs ST 540 Mountain Bike, / - 27.5" – 99 Spokes Compare: 2020 ROCKRIDER 27.5" ST 520 MTB vs 27.5" ST 530 Mountain Bike vs ST 540 Mountain Bike, / - 27.5" – 99 Spokes](https://99spokes.com/api/og/compare?i=%2Frockrider%2F2020%2F27.5-st-520-mtb%2Fthumbs%2F400%2F18c84.jpeg%2C%2Frockrider%2F2020%2F27.5-st-530-mountain-bike%2Fthumbs%2F400%2F4c005.jpeg%2C%2Frockrider%2F2020%2Fst-540-mountain-bike-27.5%2Fthumbs%2F400%2F0a2ef.jpeg&token=123404260c54de8ab17ff0a8b68608084da2223aad8d41e2688e3c8da5a72722)
Compare: 2020 ROCKRIDER 27.5" ST 520 MTB vs 27.5" ST 530 Mountain Bike vs ST 540 Mountain Bike, / - 27.5" – 99 Spokes
![Compare: 2022 ROCKRIDER 27.5 inch Mountain Bike ST 530 MDB vs 27.5 Inch Mountain bike ST 540 vs 2020 27.5" ST 530 Mountain Bike – 99 Spokes Compare: 2022 ROCKRIDER 27.5 inch Mountain Bike ST 530 MDB vs 27.5 Inch Mountain bike ST 540 vs 2020 27.5" ST 530 Mountain Bike – 99 Spokes](https://d2yn9m4p3q9iyv.cloudfront.net/rockrider/2022/27.5-inch-mountain-bike-st-540/thumbs/400/8e65d.jpeg)
Compare: 2022 ROCKRIDER 27.5 inch Mountain Bike ST 530 MDB vs 27.5 Inch Mountain bike ST 540 vs 2020 27.5" ST 530 Mountain Bike – 99 Spokes
![Compare: 2020 ROCKRIDER 27.5" ST 530 Mountain Bike vs ST 100 Mountain Bike, - 27.5" vs ST 540 Mountain Bike, / - 27.5" – 99 Spokes Compare: 2020 ROCKRIDER 27.5" ST 530 Mountain Bike vs ST 100 Mountain Bike, - 27.5" vs ST 540 Mountain Bike, / - 27.5" – 99 Spokes](https://d2yn9m4p3q9iyv.cloudfront.net/rockrider/2020/st-540-mountain-bike-27.5/thumbs/400/0a2ef.jpeg)