Look forward to others ideas and upgrades/customizing you plan to do with your Speed Twin. Let me know if you have any info on aftermarket suspension pieces.

Noleen replied no and have not heard back from Ohlins or Fox.is an online bike store specializing in mountain bike, road bike, and BMX bike parts and accessories.Pair of Shocks for BSA C15 Star (1958-67), B40 (1962-67) 11.9' Fully shrouded Fully Shrouded: YES Chrome Springs: NO Extended Length: 11.9' Spring Rate: 90Lbs Top bush : 9.5mm Bottom bush : 12.7mm.We're going to check the cable to see if it might be the culprit, but does anybody have any experience with these shocks? The rear Noleen Mega Air shock no longer locks out when he throws the lever, but it doesn't appear to leak air.If the shock losses its pressure for an unknown reason you will most likely have to rebuild or replace it. Regular compressed air contains moisture which would slowing destroy the shock from within. It remains a gas under high pressure and doesn't corrode the inside of the shock. Nitrogen is used in shock absorbers because of its inert quality.

Ohlins spring chart pdf