Shimano Flight Deck computer model #'s--differences?

Quoted post said:

Originally posted by denno
Anyone know what the difference is between the SC-6500 & SC-6501?

I believe the SC-6500 can be identified by two button positions on one hood (mode and Stop). Where as the SC-6501 has 1 button on each hood. This can be easily recognized by looking at your hoods for the little "bubble" moulded into the rubber that facilitates the buttons upon flight deck installation.

Try the Link below then look at the .pdf manuals for more detail;

http://bike.shimano.com/Computer/index.asp

Good Luck

Quoted post said:

Originally posted by denno
Anyone know what the difference is between the SC-6500 & SC-6501?

I had cause to call Shimano phone tech support and asked this question. I was told that the 6501 replaces the 6500 and will work with either wired or wireless setup. The 6501 has to be manually started, I was told, so that it does not inadvertently turn on and drain the battery.

The SC-6500 can only be setup for a single bike, whereas the SC-6501 can be setup for 4 bikes. The SC-6501 also has a facility to input the Odometer miles when setting up. Also the SC-6501 has dedicated 7 & 8 speed displays while on the SC-6500 the 7&8 speed gears are shown on 9-speed display. The SC-6501 also allows for a smaller wheel size range starting at 1300mm instead of 1700mm.