http://www.sjscycles.co.uk/shimano-6400-7-speed-uniglide-cassette-prod20077/ sjs do a uniglide with 13-32 but I'm not sure how much life the rear hub has left in it.
I'm not sure if it's worth investing in another uniglide cassette if the hub dies, I'm pretty sure the rear mech can also run 8 speed so if the rear wheel does die I will probably look for an 8 speed rear to replace it.
http://www.sjscycles.co.uk/shimano-6400-7-speed-uniglide-cassette-prod20077/ sjs do a uniglide with 13-32 but I'm not sure how much life the rear hub has left in it.
I'm not sure if it's worth investing in another uniglide cassette if the hub dies, I'm pretty sure the rear mech can also run 8 speed so if the rear wheel does die I will probably look for an 8 speed rear to replace it.