bowerm said:Not so fast!!! I'm a fulltime bike wrench in California's Marin County - the birthplace of mountain biking - and I'm amazed by the lock-step litany of praise for rapid-fire over gripshift. I've overhauled literally thousands of mountain bikes over the past six years...and in that time have come to fully appreciate SRAM and gripshift. My downhill bike sports SRAM 9.0 ESP gripshift with matching rear derailleur...and I wouldn't take rapid fire if you bought it for me. ESP shifting is tight and quick and has NEVER shifted on its own...even flying down "Repack" on Mt. Tamalpias!! Word is SRAM's X.0 is even better. Don't just listen to anyone here...find a LBS that has both and try them both. i think you may be pleasantly surprised by higher end gripshifters!!!
cheers
michael
Note that I'm not saying they shift on their own, or that they are poorly made. My point is that in times of fast riding over rough, undulating terrain when I want maximum control, I would need to relinquish some of that control in order to twist the shifter.
On the other hand if all I'm drifting along on a smooth as a baby's behind pine covered trail like in Marin , Grip Shift may be fine, then again I would ride a hard-tail there too.
In AZ where the trails are rough, I can go faster and longer on my dualie than my friends on their hardtails. My preference is for a rapidfire. If someone else comes up with a better pardigm I'll switch, Grip-Shift isn't the one for me.
If you've never neeeded to quickly shift into a lower gear as you're coming into the bottom of a ravine but need to hang on so your wheel stays pointed in the right direction, you haven't been going fast enough to notice the difference
Peace