Tamiya XV-01 Compatible Rear Lower Aluminum Suspension Arm - XV01-13405-LB by Jazrider  [XV01-13405-LB]

Rear lower arm, machined aluminum for XV-01

This aluminum rear lower suspension arm is made as a replacement for the Tamiya XV-01 platform and carries the part number XV01-13405-LB. It is intended as a direct metal substitute for the stock plastic arm where chassis geometry permits, delivering greater stiffness and more consistent suspension behavior for track or practice sessions.

Installation notes: reuse original mounting pins and hardware if they match, verify hinge pin diameter and hub interface before tightening, and recheck wheel offset and toe after fitting. Small fit or clearance variations compared with plastic parts are possible; make incremental adjustments when reassembling the rear suspension to avoid binding.

Tuning role: fitting an aluminum arm tightens the rear response and stabilizes geometry under load, aiding evaluation of roll center, anti-squat, and rebound changes. Use matched uprights and tune shock damping and spring rates to suit the firmer rear for more predictable handling during setup.