Sugino Mighty Seatpost 26,6mm SP 2C

Marsoni

M251S

$109.90

Get it in 3 business days with 1 day shipping. Friday, May 29

Sugino Mighty Seatpost 26,6mm SP 2CDetails: Brand Model: Sugino Mighty SP 2C Type: Seat Post Diameter: 26. 6 mm Length: 165 mm Condition: Used, Cleaned and Fully Functional Origin: Made in Japan Description: Sugino Mighty SP 2C seat post, 26. 6 mm x 165 mm. Used, cleaned and fully functional. A reliable Japanese classic ideal for vintage road builds and period correct steel frame restorations.

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MUCH better than the cheap plastic OEM part, Just a reminder though, these thread into an aluminum block so be very careful to start them finger tight first, then evenly tighten both bolts to push the fitting into the chamber. If you don't, it will slightly misalign and you run the risk of stripping the threads. The one comes with the replacement o ring, and be sure to get some antifreeze on that seal prior to attempting to push it into the chamber. IT IS A TIGHT FIT, but that's what you want, so just be careful. You might also want an extra hose clamp on hand, as the one that came with this began to bend as it got tight, so I had to replace it for peace of mind. Overall, great product though.

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Reviewed in the United States on January 9, 2026