Unior 1671.1/4 Bottom Bracket Removal Tool

The Unior 1671.1/4 bottom bracket removal tool removes Shimano cartridge and ISIS bottom brackets. Designed for home or workshop maintenance, it offers a robust hardened steel construction.

• Fits Shimano cartridge, Octalink, square taper and ISIS bottom brackets
• 20-tooth engagement removes the cartridge without damaging it
• Hardened Premium Flex Plus steel withstands repeated loads in the workshop
• 1/2" square drive for a torque wrench or ratchet
• A 24 mm spanner fitting at the rear provides extra leverage

Technical specifications

• Model: Bottom Bracket Tool 1671.1/4
• Material: Hardened Premium Flex Plus carbon steel
• Weight: 112 g
• Teeth: 20
• Drive: 1/2" square (for torque wrench or ratchet)
• Spanner fitting: 24 mm at the rear
• Compatibility: Shimano cartridge bottom brackets (Octalink, square taper) and ISIS
• Intended use: Removal of cartridge bottom brackets with internal bearings
• Package contents: 1 x Unior Bike Tools Bottom Bracket Tool 1671.1/4

Unior was founded in 1919 in Zreče, in present-day Slovenia, where it is still based. For bicycle care, it makes tools, repair stands and wheel equipment. Its name, adopted in the 1970s, comes from the expression “universal tools” and reflects its roots in metalworking.