Our 2009 pricing is effective from today, 17 October 2008, and all new orders will be at the new prices.
Due to the increased stress around the head tube area resulting from hardcore Downhill, Street and Dual riding, a headset with at least 22 mm deep cups is required for all frames except for Argon CC, Argon Road, Helius RC, Helius CC , Nonius and Saturn.Of course, any other headset is compatible with these frames as well, however, the warranty regarding ovalized head tubes will be void.
This MTBR Thread includes a table with a lot of the common, and less common, deep insertion headsets on the market.