The Bullet Proof Designs Hard Enduro Shifter is engineered for riders who push their bikes to the limit. CNC-machined from solid 6061 billet aluminum, it delivers unmatched strength, traction, and performance in the roughest conditions. Direct replacement for OEM part A42034031000 CNC-machined from solid 6061 billet aluminum Stainless steel spline insert prevents stripping and ensures long-term fitment Aggressive grip teeth for secure shifting even in mud and water Lifetime Warranty - break it, we replace it Tested in the toughest hard enduro conditions Fitment KTM (2017-2026)a 125 SXa 125 XCa 250 SXa 250 XCa 300 SXa 300 XCa 300 XC-W (2018-2026) Husqvarna (2017-2026)a TC 125a TC 250a TE 250/300 (2018-2026)a TX 300 GASGAS (2023-2026)a MC 125a MC 250a EC 250 (2024-2025)a EC 300 (2024-2025)