SR - Sakae Ringyo cranksets

On this page: SR Custom 170 crankset | SR CR Turbine 170 crankset | SR SA 171mm right crank w/40-52 rings | SR-Sakae SX 165mm right crank w/42-52 rings | SR-Sakae SA 170mm crank arms | SR-Sakae 165 right crank arm | SR Silstar/Motobecane 170mm

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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.

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SR Custom 170mm crankset with 42-52 rings. Used, $75.00

• This crankset uses 144 BCD (traditional Campagnolo diameter) rings.
• It is designed to be mounted to a 122.5mm spindle with a JIS taper (as opposed to the ISO taper which works on Campagnolo, Nervar & T.A.).
• SR made a number of different cranksets in the 1980s named "Custom". This is one of the nicest.

Top view

Here are the arms flipped over.

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SR Sakae CR Turbine 170mm crankset with 42-52 rings. Used, $100.00/each

• This crankset uses 144 BCD (traditional Campagnolo diameter) rings.
• It is made to be fitted to a 118mm bottom bracket spindle.

Right and left sides

Here's just the right arm and rings

The back of the right side

The left arm

The back of the left arm

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Sakae SA 171mm right crank arm with 40-52 steel rings. Used, $25.00/each

Here's the crank arm and rings.

The back side of the crank arm.

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SR-Sakae SX 165mm right crank with 42-52 rings. Used, $50.00/each

Part# 61145

In great condition

And just as nice flipped over.

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SR-Sakae SX 165mm/110 BCD right crankarm. Used, $35.00/each

Front side

Here's the back side.

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SR Sakae SA 170mm 110mm BSD crank arms. Used, $30.00/set

• The right crank arm has had its pedal threads restored with a Helicoil (see close-up pictures below). The left arm has wear, but is perfectly usable.
• SR SA cranks were produced in the 1980s
• They came only in 170mm.

Here are the arms.

Here's just the right arm.

Close-up of the Helicoil insert in the right arm.

Here's the other side of the Helicoil insert

The back of the right arm.

The back of the left arm.

Close-up of the wear on the back of the left arm.

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SR Silstar Motobecane 170mm crankset, 42-53 rings. Used, $50.00

SR produced the Silstar crankset for a long time, making small changes every few years. We believe this version, made for French bicycle maker Motobecane, was produced sometime in the late 1970s or early 1980s.

Lightly used, it will look good on any bike.