1. Material: DC cold rolled steel +65 manganese
2. Purpose: flywheel disassembly, chain repair hook, chain damage test, spoke wrench
3. Application: bicycle
4. Length: about 27 cm
5. Weight: about 73 grams
Features:
1. DC cold rolled steel +65 manganese, thickened steel beam main rod, heat treatment strengthened, not easy to deform, grinding and polishing
2. Chain hook design, easy to deal with chain maintenance
3. The chain is wrapped and enclosed, fastened and not slippery, not easy to break
4. Small size and convenient operation
5. Used for chain loss measurement and understanding of chain loss, convenient and practical
