<https://lh3.googleusercontent.com/-6vvx9Uuj9OU/WABYG-by1AI/AAAAAAAAEDk/9Sn51xtxHIcTzjEvXdQHcY9x859W1AhkACLcB/s1600/TA_washers.jpg> I have a couple of bikes (a Bleriot and a Rivendell custom) using Sugino PX cranks with TA Cyclotouriste chainrings. I've been running them for about 15 years using Shimano 9-speed chains and cassettes without any problem - the chainring spacing with the TA spacers seems ok for 9-speed. I recently wore out the chain and cassette on one bike, and as I had a spare set of 10-speed barend shifters, I purchased a 10s cassette and chain. However, I found that the chainring spacing was a bit wide for the chain, as when shifting down to the small ring it would fairly frequently skate in the gap between the chainrings rather than engage the chainring teeth.
The solution turned out to be fairly easy - the TA spacers have a 7mm inside diameter and are 3.5mm thick. A 9/32" washer has almost exactly the same I.D (9/32 = 7.14mm), so I purchased a couple of dozen of these washers in stainless steel from a local hardware store - total cost $2. These particular washers were 0.75mm thick, so I used four at each chainring bolt location to reduce the spacing to 3mm. This seems almost exactly right for the 10-speed chain - it no longer ever sits between the chainrings, and I can still use virtually the entire range of the cassette with the small chainring without having the chain hit the large ring due to the angle it is running at. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
