Prox with crankshaft seals Crankshaft bearingRef : PRO00162A / 1117589

PROX Crankshaft Bearings and Seals Kit — Manufacturer Ref: 23.CBS63004

Specifically designed for the refurbishment of the bottom end, this PROX kit includes the bearings and seals necessary for reconditioning the crankshaft. Intended for motocross machines, it allows for a restored seal and controlled sliding between the crankshaft and the casing during an engine overhaul.

• Complete kit: bearings + seals for crankshaft
• Treated bearings to reduce friction and promote smoother operation
• Allows for the replacement of worn parts during a bottom end service

This kit is aimed at riders who realign their bottom end after crashes or for preventive maintenance on motocross and cross machines. Examples of commonly affected models: KTM 300 SX (2025), HUSQVARNA TC 250 (2025), GAS GAS EC 300 (2024) — check the manufacturer reference before ordering to ensure compatibility with your model.

Workshop advice: check the condition of the crankshaft and the bearing surfaces before installation, replace additional parts if necessary, and adhere to the recommended torque settings. For safe installation, prefer a workshop fitting or one by an experienced mechanic.