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My old calipers are seized up and it looks like the brake fluid inside has solidified, so I’m not sure if they’re worth rebuilding. I’m considering new ones from Triking but I thought I’d check if anyone has a good pair of calipers first?

Dave

Have you tried putting the parts in an ultrasonic cleaner?

Andover Norton will supply all the rebuild parts req for the Lockheed/AP C101 etc . Suggest the stretch bolts are also changed .

Thanks to Al's expertise we've managed to get the calipers apart and the pistons out. They're AP Lockeed 3242 901C, have 41mm pistons and are made of cast iron. I've been unable to locate a seal kit partly because I have no idea what they were originally fitted to. As they're so old I'm thinking I might just have to get new calipers unless anyone can help with sourcing seals etc?

Thanks Dave

If they're the same as mine, they're AP Racing CP2696 calipers, which have 41.3mm pistons. They're a standard AP Lockheed size, seal kits and pistons - in stainless too - are readily available online. They were fitted to Triumph Tridents and later Bonnies (I think Norton Commandos too, but I've never had one of those) so should be easily obtainable from Brit bike dealers.

That's brilliant - thanks a lot. I'm going to get the seal kits from Andover Norton - I note that they don't supply the dust cover seals which my iron calipers have but the existing ones appear to be ok. The hydraulic piston and crossover seals are the main things.

Cheers Dave

Hi Dave,
Our previously owned Type 1, number 46 1984, had CP2696 calipers and I now have them on our Type 2.
Have found Dennis Trollope In Bristol, 0117 957 0821, helpful for parts.