Trike Guy
 

Hey, folks. Greetings from Arkansas. I ride a TerraTrike with a Sturmey Archer 8-speed hub. Love the thing, when the hub's working. Hoping for help here (and general discussion) so I can keep the wheels turning. I have the Sturmey
Archer X-RF8 eight speed hub (second one in 3 years and less than 2K miles). They both malfunctioned in the same manner.
Riding along at a moderate pace when the pedals lock up in 3rd gear. A back rotation releases the pedals movement, but then the only gears that engage are 2, 5, 6, and 8. Everything is correctly adjusted per factory specs.
So, can this hub be fixed or am I out for a new one? If a new one is in order any one have recommendations not Sturmey Archer?
The first Hub on the trike was replaced under warranty since it had fewer that 100 miles on it. Second probably has 1000 miles.
HALP!

Welcome to the forums! Might check the mechanic section of the forums, you will get better exposure to your questions there.