![Compare: 2021 ROCKRIDER 27.5" Mountain Bike ST 900 S vs 27.5" MTB ST 530 S vs 27.5" Full Suspension Mountain Bike ST 540 S – 99 Spokes Compare: 2021 ROCKRIDER 27.5" Mountain Bike ST 900 S vs 27.5" MTB ST 530 S vs 27.5" Full Suspension Mountain Bike ST 540 S – 99 Spokes](https://d2yn9m4p3q9iyv.cloudfront.net/rockrider/2021/27.5-mountain-bike-st-900-s/thumbs/400/28eb2.jpeg)
Compare: 2021 ROCKRIDER 27.5" Mountain Bike ST 900 S vs 27.5" MTB ST 530 S vs 27.5" Full Suspension Mountain Bike ST 540 S – 99 Spokes
![Compare: 2020 ROCKRIDER 27.5" Full Suspension Mountain Bike ST 530 S vs 27.5" Full Suspension Mountain Bike ST 540 S - / vs 27.5" Full Suspension Mountain Bike ST 900 S - / Compare: 2020 ROCKRIDER 27.5" Full Suspension Mountain Bike ST 530 S vs 27.5" Full Suspension Mountain Bike ST 540 S - / vs 27.5" Full Suspension Mountain Bike ST 900 S - /](https://d2yn9m4p3q9iyv.cloudfront.net/rockrider/2020/29-full-suspension-carbon-mountain-bike-xc-900-s/thumbs/1000/9c591.jpeg)
Compare: 2020 ROCKRIDER 27.5" Full Suspension Mountain Bike ST 530 S vs 27.5" Full Suspension Mountain Bike ST 540 S - / vs 27.5" Full Suspension Mountain Bike ST 900 S - /
![Compare: 2020 ROCKRIDER 27.5" Full Suspension Mountain Bike ST 530 S vs 27.5" Full Suspension Mountain Bike ST 540 S - / vs ST 540 S Full Suspension Mountain Bike - 27.5" – 99 Spokes Compare: 2020 ROCKRIDER 27.5" Full Suspension Mountain Bike ST 530 S vs 27.5" Full Suspension Mountain Bike ST 540 S - / vs ST 540 S Full Suspension Mountain Bike - 27.5" – 99 Spokes](https://d2yn9m4p3q9iyv.cloudfront.net/rockrider/2020/27.5-full-suspension-mountain-bike-st-540-s/thumbs/1000/2ccd1.jpeg)