It is used to remove the cassette sprocket from the hub.
On 2013-09-26 12:43:46
Because it is a hexagon with 24 mm across flats, I used a 24 mm socket wrench in combination (I recommend using a monkey wrench for product description) (I used a tool with a long handle since it is tightened tightly) ). For loosening work, use sprocket remover TL - SR21 (jig with chain attached to bar) to keep sprocket part down. Compatible products are also sold by each company, but I thought that this tool was sophisticated because it was difficult to fly out accident at the center pin.