DT Swiss Ratchet LN Freehub Body - Shimano Micro Spline Standard Aluminum Sealed Bearing Kit w/ End Cap 12 x 142/148 mm MFPN=TS-2EXT.3 If you have a BB30

If you have a BB30 crankset (30mm diameter aluminum spindle) this measurement will determine whether it is a long or short spindle:

Color Black Defined Color Black Fork Type Not Included Frame Material Steel Mfg Size 20

}SRAM RED XPLR eTap AXS Rear Derailleur - 12-Speed 44t Max Black D1

your only challenge is deciding which to pick today

DT Swiss Ratchet LN Freehub Body - Shimano Micro Spline Standard Aluminum Sealed Bearing Kit w/ End Cap 12 x 142/148 mm MFPN=TS-2EXT.3 If you have a BB30Ratchet LN freehub bodies support the entry level Ratchet System of DT Swiss primarily used in the lower price products like the 370 hubs. The Ratchet LN freehub body is designed to replace the 3 Pawl freehub system. Ratchet LN uses the same inner parts as the freehub Ratchet System where the difference lies in the freehub system seal located on the freehub body Cassette Body Type Shimano Micro Spline Material Aluminum Rear Axle Type 12mm Thru axle