Shimano UN55 English SQUARE-JIS 73x110mm Bottom Bracket compatio_raw they have revolutionised the sport

they have revolutionised the sport of cycling

WARNING Handling this product will expose you to chemicals

while the transition knobs and raised side lugs are spaced out to provide cornering traction and shed debris

NOT COMBO COMPATIBLE

Four years later in 1988

Shimano UN55 English SQUARE-JIS 73x110mm Bottom Bracket compatio_raw they have revolutionised the sportShimano's BB UN55 Square Spindle Bottom Brackets are the unofficial standard for English threaded cartridge bottom brackets. Quality, value, and durability come together to keep you cranking for many, many miles. Fits JIS Square Taper Cranksets Hollow spindle Crankarm fixing bolts not included