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The Profile Bolt On Spider was designed to provide optimal chainline when paired with a Profile Euro Outboard bottom bracket.
It's machined from a billet aluminium plate and comes supplied with a CrMo steel adapter insert already pressed in. The chainring can be mounted on either the inner or outer face of the spider giving you a little more chainline adjustability.
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Product Specs
- Crank Type:
- Drive Type:
- Spindle Diameter:
- Drive Side:
- Includes BB Bearings:
- Weight:
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