Shimano Dura-Ace (137 9001) 1st Gen GB-100 NOS Vintage 1/4

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Description

Shimano Dura-Ace (137 9001) 1st Gen GB-100 NOS Vintage 1/4" Steel Bottom Bracket BearingsOriginal BB bearings produced in the 1970s New old stock! Still unused after all these years Suitable for historic cycling events such as L'Eroica Worldwide shipping Shimano Dura Ace caged bottom bracket bearing set (or ball races if you prefer), hailing from Japan and in production during the 1970s (yet still new & unused after all this time). The perfect finishing touch for your vintage bike, but great for bikes of the non vintage variety too! If

Size: Small (34 - 37" Chest) Material: 100% Acrylic Condition: OK (Fading On Letters

regardless it's rare to find a frame of this calibre still unbuilt after 30 plus years

The design is of the ’post-CPSC’ era produced from around 1978 onwards

this Mino Denti Mistral is just about as small a vintage road bike frame as you are likely to find

✓ Original levers - in production from the 1980s to the 1990s

but from 1st July 2026

Stock Code - U-G3-PD116V

It's made to fit 144 BCD 5-arm cranks with adjacent bolt holes measuring 84

Crown Race (ID) - 27

Threading: Standard ISO (9/16" x 20 TPI) Bearing / Race Condition: OK Body Condition: Good

Crank Bolt Type - 14 mm Hex

Material - Steel / Aluminum