Kryptonite KryptoLok U-Lock - 4 x 9" Keyed Black Includes bracket CheckoutTitle=Topeak MTS Trunk Bag EX Rack Bag - Strap Mount we recommend a chainguide or

we recommend a chainguide or chainkeeper in addition to a clutch-type rear derailleur

It does not work without that part

}SRAM Rival 1x XPLR Wide Crank Arm Assembly - 175mm 12/13-Speed 8-Bolt Direct Mount DUB Spindle Black E1

The calipers enable simultaneous radial control of the wheel position on both sides

Kryptonite KryptoLok U-Lock - 4 x 9" Keyed Black Includes bracket CheckoutTitle=Topeak MTS Trunk Bag EX Rack Bag - Strap Mount we recommend a chainguide orUpdated version 12. 7mm hardened performance steel Double deadbolt design Dust cover High security disc style cylinder 2 stainless steel keys FlexFrame U Bracket TECH SPECS Lock Type Key Thickness In mm 13mm Primary Color Grey Internal Lock Size Metric 101x229mm Bracket Flexframe Internal Lock Size Imperial 4X9