Decathlon Rockrider 520 - Size L - FULLY EQUIPPED & FREE ACCESSORIES, Sports Equipment, Bicycles & Parts, Bicycles on Carousell
![My friend has a Btwin rockrider 520 (image attached) needing to replace the bottom bracket trying to figure out what type it is : r/bikewrench My friend has a Btwin rockrider 520 (image attached) needing to replace the bottom bracket trying to figure out what type it is : r/bikewrench](https://preview.redd.it/p6rm2trhtno61.jpg?auto=webp&s=df9a9bd371397dbc3b8e6b5f9b11cd6605e4f5bb)
My friend has a Btwin rockrider 520 (image attached) needing to replace the bottom bracket trying to figure out what type it is : r/bikewrench
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