MOVKZACV Bike Chain Tensioner Single Speed Adjuster Converter for MTB Road Racing Bike, Cycling Chain Stabilizer Rear Derailleur Guide

• Material: Made of aluminum alloy material, light weight does not put an extra burden on the bicycle.
• Spring Design: This chain adjuster can change multi-speed bikes into single speed bike.
• For 11T/13T Derailleur: Ensures perfect tension for your chain to make you pedal with less efforts.
• Suitable for: It can fit various sizes of gear, and prevent chain from skidding out from the crank. Suitable for MTB, road racing, fixie bikes, single speed bikes, bmx's.
• Package included: 1pc * Bike Chain Tensioner (Black; Size: about 90x50mm)

Features: Material: Made of aluminum alloy material, light weight does not put an extra burden on the bicycle. Spring Design: This chain adjuster can change multi-speed bikes into single speed bike. For 11T/13T Derailleur: Ensures perfect tension for your chain to make you pedal with less efforts. Universal: It can fit various sizes of gear, and prevent chain from skidding out from the crank. Usage: MTB, road racing, fixie bikes, single speed bikes, bmx's. Specifications: Material: Aluminum Alloy Color: Black Size: About 90x50mm Package included: 1pc * bike chain tensioner Note: 1. Due to the light and screen difference, the item's color may be slightly different from the pictures. 2. Please allow 0.5-2 cm differences due to manual measurement.