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SR - Sakae Ringyo Seat Posts

On this page:
SR Laprade seat posts: 26.6mm style A | 26.6 mm style B
SR OEM post: 26.6mm | Unbranded 26.6 mm copy

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Despite its dominance in the mid-1980s SR (Sakae Ringyo), has left only a faint historical footprint. It looks like the firm began in the mid-1960s. As Japanese bikes began to dominate the American consumer market in the 1970s, it seemed that most of the bikes were SR crank-equipped. The firm earned its business. From the least expensive to the top-of-the-line, SR cranks were well-made.

In the early 1980s SR licensed the single-bolt Laprade seat post design. Instead of the beautiful, yet complex and difficult to mount Campagnolo two-bolt post, the Laprade design allowed for easy mounting and very precise setting of the saddle angle. Very quickly the SR-Laprade seat post was original equipment on a wide range of bicycles.

Hammered by Shimano's market dominance, the once powerful SR was acquired by Mori industries in 1987. The next year, the new SR purchased another formerly mighty Japanese component maker, SunTour. The resulting firm was renamed SR-SunTour.

In 1994, faced by ever-declining sales, Mori contemplated closing the firm. Instead, it was purchased by management and now SR and SunTour parts are made in Taiwan.


SR Laprade 26.6mm seat post, style A. used $25.00

SR Laprade seat post

The SR Laprade was a perfect piece of bicycle design.


SR Laprade 26.6mm seat post, style B. used $25.00

  • 180mm long

SR Laprade seat post

One of cycling's iconic components

SR Laprade post

The other side

SR Seatpost

From the front


SR OEM 26.6 seat post. Used, $20.00

  • OEM means orginal equipment manufacturer. We believe this post was made only for bicycle factories rather than for the aftermarket.
  • We date it to the years around 1981
  • 180 mm
  • 313 grams

SR OWM post

This post came on so many mid-range Japanese bikes of the early 1980s.

SR seat post

From the front

SR seat post

And from the back


Copy of SR OEM 26.6 seat post. Used, $20.00

  • We don't know who made this perfectly fine post. It is unbranded, not unusual in Asian OEM parts.
  • OEM means orginal equipment manufacturer. We believe this post was made only for bicycle factories rather than for the aftermarket.
  • We date it to the years around 1981
  • 180 mm
  • 315 grams

SR OEM post

We don't know who produced it, but it is well made.

Seat post

From the front

SR copy seat post

And from the back