hollister":2cto2luc said:
do you guys know what the "R" stands for?
it seems to be a common thing around here. it might explain quite a bit
Tell us what the X and T stand for and I'd be impressed.
I'm not keen on any of the early rapidfire shifters. In 1992 I was using XT Rapidfire Plus shifters on the bike I raced on.
The throw of the shifter lever was and still is very short when compared to modern Rapidfires.
I reverted back to thumbshifters as I just wasn't keen on how fragile the Rapidfires felt.
XTR M900s feel even more fragile due to their more lightweight 'Race' design.
Later designs improved but it wasn't until about 1997 or thereabouts when I was happy using them. Modern rapidfires are great nowadays.
In terms of Gripshift, I used X-Ray SRT800, ESP900 and then ESP9.0 for a few years from 1995 onwards in that order.
The non ESP types (SRT600 - 800) suffered from cable drag and weren't that nice to use. The ESP types however, with their 1:1 cable actuation ratio, were a vast improvement and worked very well.
Very intuitive to use and very reliable, but I can understand why some people don't like them, especially with Shimano's efforts to undermine the concept by offering their own cheap and nasty versions over many years.
So yes in summary, XTR M900 rapidfire plus shifters aren't that great. Fragile and temperamental, but great when they are set up well, looked after and maintained constantly.
A mechanic in the pits often helps for the above...