This is an M12 rear axle nut, perfect for SurRon and E - Ride electric bikes, offering high reliability and durability.

To use this rear axle nut, first make sure your SurRon or E - Ride bike is on a stable surface. Loosen the old nut carefully and then thread the new M12 nut onto the rear axle until it's snug. Don't over - tighten as it may damage the axle. For maintenance, regularly check the nut's tightness. If you notice any looseness, tighten it gently. Keep it clean to prevent rust and other damages. Also, avoid using it in extremely harsh environments to ensure its long - term performance.