![Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26", Unisex, Black, Small for Sale in Lakeside, CA - OfferUp Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26", Unisex, Black, Small for Sale in Lakeside, CA - OfferUp](https://images.offerup.com/LXGeqCq3Dpx_JHzdpAWIF_d-LTw=/250x250/5abd/5abd60ca8a7d4e51857aec5223b82095.jpg)
Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26", Unisex, Black, Small for Sale in Lakeside, CA - OfferUp
![New Bike - Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26", Unisex Black, Medium for Sale in Boynton Beach, FL - OfferUp New Bike - Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26", Unisex Black, Medium for Sale in Boynton Beach, FL - OfferUp](https://images.offerup.com/IV6zZA7J6gUt8bdLh7IJ3-IrKJc=/250x250/decf/decf5d4c63f74b2dbc2a53b56c7d160b.jpg)
New Bike - Decathlon Rockrider ST50, 21 Speed Aluminum Mountain Bike, 26", Unisex Black, Medium for Sale in Boynton Beach, FL - OfferUp
![Rockrider ST500 26” Wheel - Mountain Bike for 9 to 12 yrs old – Decathlon Brand - First ride ST-500 - YouTube Rockrider ST500 26” Wheel - Mountain Bike for 9 to 12 yrs old – Decathlon Brand - First ride ST-500 - YouTube](https://i.ytimg.com/vi/flJ3vcuyyBQ/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLDVaZL0mY__kLv_UL_F-oGKm8B0BA)