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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
hand pump size
Reach adjustment
more secure shifting
Secure and stable design eliminates bounce and vibration
Zipped essentials pocket on left strap for gels
Shimano Bottom Bracket BB-UN55 Italian 70-122.5mm ultradynamico hand pump sizeShimano'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
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