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Freewheel Spider - 5 Arm 130 mm

$23.95
SKU:
SBP-5A130
Quantity:

Product Description

The 5-arm 130mm BCD spider is compatible with serious road chainrings. 84 grams, still less than 3 ounces.

Now you can trim weight from your bike with alternatives to heavier steel chainring discs, by using your favorite chainring and a new lightweight spider that mates to our freewheels.

The spiders are made from AL 6061-T6, an "aircraft" grade aluminum alloy with high tensile and yield strength and superior resistance to corrosion. At 4.8mm thick they are strong and resilient yet still save well over half the weight of an equivalent size steel chainring disc. They fit onto our flanged crankset freewheels and our chainring adapter, attached through one of two sets of five holes in the spiders. One set of holes handles countersunk screws, especially for spiders set on the outside of the freewheel flange. The other set of holes handles any standard flat-bottom machine or cap screw.

For some builds you are going to want that steel disc, but for many setups the steel is overkill.

We are making them available in the most common sizes for all styles of cycling.

Product Reviews

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  1. 5 Star Review

    Posted by on Feb 15th 2013

    Very well made part, planing to use a 48 and a 39 chain ring, I have had experience with using aluminum dampers on my Chevy v8 and had good improvements in RPM I hop it will do the same for my bike motor, all keep you posted.

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