South Salem Cycleworks: Salem, Oregon
(503) 480-2001
email: sscycleworks@comcast.net
We have a huge stock of vintage and modern parts. Contact us!

Vintage Components - SunTour Bottom Brackets

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On this page:
Bottom brackets: XC Pro English bottom bracket with Grease Guard | 68mm x 115mm English XC Pro Microlite Grease Guard bottom bracket | XC Comp English bottom bracket | Cyclone English bottom bracket
Spindles: 68mm x 127mm triple Grease Guard | 68mm x 115mm Grease Guard | Superbe Pro BB-91, 68 x 112mm
Sleeves: Grease Guard bottom bracket sleeve


SunTour XC Pro English bottom bracket with SunTour Grease Guard System. New old stock, $100.00/each

We have several, all English threaded: 1.37 x 24

With these spindles:

68mm x 127.5 (we have four of these)
73mm x 118
73mm x 130 (we have three of these)

This bottom bracket uses Wilderness Trail Bike's "Grease Guard" system. The crank bolts are hollow, allowing grease injection into the bottom bracket and out ports on the spindle. The dust caps have rubber seals. Neat!

These were produced in the 1980s.

SunTour XC Pro bottom bracket

New, with orginal packaging.


SunTour 68mm x 115mm English XC Pro Microlite Grease Guard bottom bracket. New, $175.00/each

Though new and unridden, this bottom bracket was installed by our shop in a bike and then removed because the spindle was the wrong length for the user.

SunTour XC Pro bottom bracket

A lovely piece of machinery

SunTour bottom bracket

End view from the drive side.

SunTour bottom bracket

From the other side.

SunTour bottom bracket

The box it will come in.


SunTour XC Comp English bottom bracket. New old stock, $70.00

We have two, English threaded, 1.37 x 24

68 x 127.5
68 x 128.5

SunTour CX Comp bottom bracket

New, with original packaging


SunTour Cyclone bottom bracket. 68mm spindle w/ English threaded cups (1.37 x 24)- $60.00

Part# BB-36

Spindle length: 113mm

SunTour Cyclone bottom brackets were produced in the 1980s. The cups have seals that generally keep water from getting into the bearings.

SunTour bottom brackets were made to JIS (Japanese Industrial Standards). That means the taper matches Sugino and is very close to Campagnolo. Most users find all three interchangable.

Ours is in excellent condition with one small, slight imperfection in the adjustable cup bearing surface

Cyclone bottom bracket

You can see the rubber seals that protect the bearings

SunTour Cyclone bottom bracket

View of the bearing surfaces


Suntour 68mm x 127mm Grease Guard Triple Spindle. Used, $45.00

  • For triple cranksets
  • Embossed on the spindle: ML-XP-68

Su Tour grease guard spindle

For double cranksets


Suntour 68mm x 115mm Grease Guard Spindle. New, $100.00/each

Embossed on the spindle: ML-SL-68

SunTour Grease Guard spindle

Ready to go to work

SunTour Spindle

The other side of the spindle

SunTour Grease Guard spindle

Angled view

SunTour Grease Guard spindle

Beautifully made


SunTour Superbe Pro BB-91 spindle, 68 x 112mm. New, $100.00/each

SiunTour Spindle

As nicely made as any bike part, ever.

Superbe Pro spindle

Here's the other side of the spindle

SunTour Superbe spindle

End-on view


SunTour Grease Guard bottom bracket sleeve. New, $10.00/each

We have two in stock

Bottom bracket sleeve

Close-up

SunTour Grease Guard bottom bracket sleeve

From a different angle