say Dan would that lock fit my sherpa
Yep! With the Sherpa's smaller seatstays and ATB kit, it would be a bolt-on, no-fiddle job, but you would have to relocate your pump from its present location (I moved mine thanks to a nylon Zefal pump peg and Doohicki mount down by the chainstay bridge). Summary post and pics here:
http://www.thorncycles.co.uk/forums/index.php?topic=1944.msg19741#msg19741*Highly* recommended; once you have a ring-lock, you'll wonder how you ever managed without, jags. Of course, it is not the most secure thing in the world when used alone, but...
1) It beats having no lock at all.
2) It is always with/on the bike, so you can't forget it.
3) If you choose to have one that keeps the key in place while riding, you can't forget your key at home; it stores in the lock. I use a coiled keeper and wear the key like a bracelet when off the bike.
4) It is a locking solution so convenient, you'll actually use it.
5) Add a plug-in chain or cable, and you can secure the front wheel and the bike to a parking loop and secure the rear wheel with the ring-lock.
6) If you also add a U-lock, the ring-lock and cable then become additional security beyond what the U-lock provides.
The ringlock and/or cable is not a substitute for the security of a U-lock, but it is a wonderful addition in higher-risk areas and it is the perfect solution when you need security to keep someone from riding away on the bike or simply picking it up (i.e. for me when I use a small booth-sized portable toilet and can't bring the bike inside with me). For this reason, it works well when touring, as the bike is likely too heavy to easily carry if still loaded. It is proving to be the perfect solution in my methamphetamine-fueled crime-ridden area, where "bike-jackings" are common anytime a person is not actually riding, say while taking a photo or peeling off riding tights. It has already become second-nature for me to reach down, flip the ring closed and slide the key-holding coil over my wrist,
then take my photo or change my clothing.
Add it to the goodies list, jags! You'll never regret it...
(Thanks, Jim!
)
All the best,
Dan. (...who now considers a ring-lock "essential" touring-bike gear)