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Giant Yukon 1 + Manitou Mastodon Fork?

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Giant Yukon 1 + Manitou Mastodon Fork?

Old 12-24-20, 01:57 PM
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Giant Yukon 1 + Manitou Mastodon Fork?


I have a Giant Yukon 1 and I am debating putting a Manitou Mastodon fork on it. I called up Giant and they said this bike is meant for a rigid fork and it might invalidate the warranty.

Has anyone done this? Does anyone have experience putting aftermarket parts on these types of bikes? I don't want to wreck my bike.

Thank You
EnzGemini is offline  
Old 12-25-20, 10:14 AM
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The Yukon looks like the rigid fork is suspension corrected. Looks like for a 80 or 100mm travel fork. This is only from looking, not actually reading geometry charts.

Are you sure the person at Giant didn't mean a longer travel fork (i.e. 120mm instead of 100mm) that voids the warranty? Longer fork = slacker head angle = more load on the head tube welds.

You should find out the AC ratio of the rigid fork and get a suspension fork of equivalent length (with ~25% sag) and should be good. A few mm won't kill anything. If the frame brakes, just put the rigid fork back before you bring it to the shop for warranty.
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