Accarugty Bicycle Chain Keeper, For 142-148mm Thru Axle Frames, Aluminium Alloy Rear Derailleur Guard With Saigang Roller And Double Bearings, For Cleaning, Lubrication And

• [ ROLLER DESIGN] Features a Saigang roller with high hardness that ensures no damage to frame threads, providing peace of mind while maintaining your bike.
• [SMOOTH OPERATION] Equipped with built-in double bearings for seamless rolling and effortless speed changes, enhancing your cycling experience.
• [COMPATIBLE FRAME SIZES] Suitable for 142~148MM gear frames and comes with one caliper barrier, making it adaptable for various bicycle models.
• [EFFICIENT MAINTENANCE] Ideal for lubrication and easy for access to the rear derailleur for inspection, your bike stays in top condition.
• [PROTECTS YOUR MECHANISM] Reduces the risk of rear derailleur damage during transport without the rear wheel, eliminating the need to lock out in an extended position.

Features: 1. Saigang roller, high hardness, no damage to frame threads for 2. Built-in double bearings, smooth rolling and smooth change 3. Applicable to 142~148MM gear frame, equipped with 1 caliper barrier 4. Ideal for chain lubrication and better acess to the rear mech for cleaning and inspection 5. Reduces the risk of rear mech damage during transport without the rear wheel because the mech no longer needs to be locked out in an extended and exposed position Specifications: *Product Name: Bike Chain Keeper *Material: Aluminum alloy+Steel *Size: 160x57mm(As Pictures Show) *Color: Black+Silver (As Pictures Show) *Weight: About 132g Package Content: 1 x Bike Chain Keeper