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Vintage Components - SR/Sakae Ringyo quill stems

On this page:
SR Royal quill stems: 10cm
SR Custom: 8cm black | 12cm silver

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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 it business. From the least expensive to the top-of-the-line, SR cranks were well-made.

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 Royal 10 cm x 26.0mm bar diameter. New, $60.00

Part# 31108

We date this stem to the mid-1970s. The design of the SR Royal stem evolved over the years, but we believe this is the original design. It is very much like a Cinelli 1A.

Quill diameter: 22.2

Though new, the stem does have a small scratch on the top. See second picture.

SR Roayl stem

.Beautifully finished

SR Royal stem

The small scratch, making it a slightly flawed masterpiece.


SR Custom 8 cm x 26.0mm bar diameter. Used, $80.00

With screw-cam bar clamp

SR 8 cm Custom stem

This rare stem secures the bars with an internal cam

SR Custom 8 cm stem

From the top. Apologies for the reflection of the lights on the front of the stem.


SR Custom 12 cm x 26.0mm bar diameter. Used, $30.00

SR Custom 12cm stem

Clean, simple design

SR Custom stem

And the other side. Most of the scuffing is below the quill insertion limit line, so it will not show.