At 10:18 AM 9/23/06 -0500, Mark Stonich wrote:
>Some people liked the shifting when mixing BarCons with other brands of RD.
>
>But I always found that I needed to adjust the friction too tight for
>really smooth movement of the shifters. Demultiplicators cured
>this. I found them to be especially helpful with SunTour's narrow
>"Ultra" freewheel cog spacing.
I put a 6-cog 14-28 Suntour Ultra block on my Nishiki Landau and it worked really well with the Cyclone RD with no over-shifting. However, the Shimano 7-cog 14-28 I recently put on my Nishiki Ultimate, because the 21 teeth were getting too hard for my old legs, wants to auto-shift and skip gears. I'd really like to see a picture of this "demultiplicateur" gadget, although I'd rather just fine tune my NR shifter. Right now, when I increase the friction it feels too stiff. There seems to be some confusion as to whether it increases or decraeses the mechanical advantage, but it it's just a bellcrank, maybe it could be flipped to do either.
John Betmanis
Woodstock, Ontario
Canada