Nice day on Sunday so thought I'd do a loop through Lee's valley, 130 km round trip with 70km of that being gravel, with multiple ford and a river crossing which I fell over in and had to wait for the electrics to dry out, some quite big elevation changes but reasonably easy riding which the mighty ATB (All Terrain BSA) took in it's stride, I do find the Avon Speedmaster Mk2 possibly not the best front tyre for it though