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Btwin Rockrider 520 Mountain Bike 2016|Gear Cycle with Hydraulic Disc Brakes|26" MTB cycles below Rs.30,000|Bicycle@ChooseMyBicycle.com
![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://i.redd.it/p6rm2trhtno61.jpg)
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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