1 Old-fashioned bottom bracket bottom bracket assembly and disassembly sleeve, suitable for old-fashioned bicycles / electric bicycles. 2 Fine turning, high bayonet precision, matching and anastomosis, without damaging the bottom bracket. 3 Tool steel material, quenched and hardened, strong toughness, good durability and long service life. 4 Easy to use, without any difficult requirements even though you use it for the first time. 5 Exquisite workmanship, simple appearance; light in weight, easy to carry around.
What's in the box
1 x Installation Device
