(Mountain Speed) has released a Chain Retention device
aimed at the downhill biker that doesn't want to sacrifice
his granny gear. This means you can now ride your bike
up the hills you plan on going down with out having
to endure the chain dropping or slapping that usually
accompany a bike without a chain guide system.
LRP (Long Range Patrol) will consist of essentially
an anodized aluminum bash guard and an aluminum arm
with roller that attaches to your bottom bracket. The
roller will apparently float to allow your chain to
move between the middle and granny chain rings. After
calling MRP I learned that they do not sell the arm
seperately for those that already use a bash guard or
rock ring in place of their large chain ring. Supposedly,
you have to use their bash guard for the system to work
because of some "beveling"???
always, the prices are steep, so be prepared to drop
about $150 (US) for the setup.