OnGuard RockSolid 8590 U-Lock - 3.55 x 6.9 MFPN=100-013-003 Not compatible with Shimano RD-RX812

Not compatible with Shimano RD-RX812 or RD-RX817 due to the 31T capacity limitation

} 20mm deep disc brake

You get all of the performance and much

with Pro 19mm rubber grips designed for little hands

As a result you will see many bikes with exactly the same hanger

OnGuard RockSolid 8590 U-Lock - 3.55 x 6.9 MFPN=100-013-003 Not compatible with Shimano RD-RX812Introducing the OnGuard RockSolid a state of the art bike lock designed for maximum security against determined thieves. Utilizing advanced materials and technology this lock features a robust shackle and innovative locking mechanisms to create an impenetrable barrier. X4P Quattro olt locking mechanism secures the shackle at four points for enhanced protection Z Cylinder is bump proof and resistant to picking pulling and drilling 15mm hardened steel