Hi Pete , only had 1 a10 with the ariel hubs ,back in 1967 and like you found them pretty poor unlike some of our friends on this forum . Admittedly mine was on an outfit and the braking came to ahead ,literally, when I ran into the rear of a moggie minor that had stopped ,I coundn't. fortunately it was an older model with strong bumber so no damage ,imagine my horror when my passenger started shouting that he'd lost his foot !! Only sitting on a car seat ,fixed to a board He'd shot forward when I hit ,the sidecar board went down with his weight allowing his foot to slip under the rubber rear wing of the Moggie then the board came up -one foot lost luckilly only until 3 of us lifed the moggie off it !! bit of bruseing only but the front wheel and forks were out asap when we got back to the shed and a better type ( in my opinion ) (single sided 8" ) fitted . That incident has always coloured my judgement of these type hubs, probably unreasonably but its incidenets like that which form our preferences .Bobh.