SunTour cranksets

On this page: X1 175 triple crankset | XCT 175 triple crankset with 22/32/42 rings | XCT 175 triple crankset with 28/38/48 rings | XLT 175 triple crankset with 22/32/42 rings | Micro Drive XC Comp 175mm triple crankset with 20/32/42 rings | SL 170 crankset with 42/52 rings | SL 170mm crankset with 39/53 rings | SR-SunTour 175mm crankarms with 22-tooth inner ring

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Suntour can trace its origins to 1912, when the then-named Maeda Iron Works began making bicycle sprockets and then freewheels.

Suntour's business really took off with its introduction of the slant parallelogram rear derailleur in 1964. This innovation, upon which all modern derailleurs are based, allowed the derailleur to maintain a constant distance from the sprockets and vastly improved shifting.

Suntour thrived and expanded, eventually producing complete groups, all well-designed and beautifully made. But upon the expiration of Suntour's slant-parallelogram derailleur patent, arch-competitor Shimano, adopting this design, became a relentless and dominating force in bicycle components, crushing the weaker Suntour company.

At the same time, also hammered by Shimano's market dominance, the once powerful crankset maker SR was acquired by Mori industries in 1987. The next year, this new SR company purchased 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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SunTour X1 175 triple crankset, black anodized w/28/38/48 rings. Lightly used, $50.00

Lightly used, as the chainrings show.

The back side, looks just as good.

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SR-SunTour XCT 175 triple crankset with 22/32/42 rings. New, $60.00

Part# 60104

• We have six in stock

That's a plastic protective film on the logo of the right crank.

It's new, in the box

And the back side

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SR-SunTour XCT 175 triple crankset with 28/38/48 rings. New, $60.00

Part# 60120

New, and ready for your bike.

New, in the box. Not a fancy box, but who rides the box?

And the back side of the crankset.

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SR-SunTour XLT 175 triple crankset with 22/32/42 rings. Used, $35.00

A little scuffed, but many miles left in this set.

And from the back.

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SunTour Micro Drive XC Comp 175mm crankset with 20/32/42 rings. Used, $75.00

It was the SunTour Micro Drive system that started the compact drive revolution.

Top side

And the flip side

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SunTour SL 170mm crankset with 42/52 rings. New, $100.00

Part# 60108

• Produced 1991-1994
• 130mm BCD

Simple design and nicely finished

And the back side

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SunTour SL 170mm crankset with 39/53 rings. New, $100.00

Part# 60108-02

• Produced 1991-1994
• 130mm BCD

Ready for your bike

And turned over. Note it has an SR inner chainring. When this crankset was made SunTour & SR had already merged.

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SR-SunTour 175mm triple crankarms with 22-tooth inner ring. Used, $30.00

• The arms are made for 110mm outer rings

175 arms that take 110mm rings.

The business side of the arms