
Since then virtually all my bikes have been Shimano - or one of their clones - equipped, and over the years these systems have become more and more sophisticated, to the point where all braking and gear-change operations are effected through the handlebars. It's been a long time since I reached to the downtube to change gear.

SRAM first impinged on my consciousness some years ago with their grip-shift technology for mountain bikes, a system which was similar to that found on Italian motor scooters, and which, as I recall, failed on two counts ... grip and shift.
But what the system did do was force other manufacturers to adopt as a design basic, the ability to control your bicycle without having to move your hands from the bars, which had benefits in safety, comfort and control.
Until recently I was unaware that SRAM now produces equipment for the road, but I was happy enough to consider it, particularly since I noticed a couple of teams using SRAM gear in the Tour de France. If it's good enough for them ...
The main difference between the SRAM gear-change system and Shimano's is that the gears are controlled by a lever under a fixed axis brake lever rather than a combination of gear and brake lever which moves in two axes. This didn't really prove a problem on the change-over from Shimano to SRAM. Indeed, it seemed rather intuitive.
The gear change movement is also rather different. The right-hand rear-gear lever uses a 1-2-click motion. Shift the lever 1-click and the chain drops down a cog; 1-2-click and the chain moves up. The left-hand front-gear changer seems to be similar, but, of course there are only 2 chain-wheels. At the moment, all is very positive and snappy. So far, so good.
The sprocket is 10-speed and the chain has a power-link.
