I plan to upgrade from Dura 9 spd to 10 spd. Is it possible to just change the cogset, chain and sti?Some mechanics here say the 9spd rear der will work. I will live with the 9 spd brake calipers and front d.I was hoping not to spend too much for that gain of one gear. Anyone upgraded this way?
Yes…you need the STI levers to get the full 10 speeds obviously…a 10-speed chain…which you can use with 10-speed cassettes (cogset) and 9-speed cassettes and the 10-speed cassette…to get the 10-speeds!
The rear derailleur will work, no problem at all. As will the front derailleur. The Dura Ace 10-speed crankset is a beauty and worth an upgrade, in my opinion, over the 9-speed. I converted to Rotors on both bikes I have. Actually, I have a Dura Ace 10-speed crankset (172.5mm cranks) 53 tooth for sale now that I think of it…cos I’m into Rotors.
Thanks for the hands on advise. Much as I like the 10 spd cranks, will change those necessary only. Would you know if the bar end shifters will work on the 10 spd cogs even on friction mode alone?
Both 9-speed and 10-speed bar-end shifters work fine…you only lose a gear on the 9 obviously…it’s worth getting the 10-speed shifters, obvious to say! If you plan to use 9-speed bar-end shifters just determine which speed you can lose…be it the 25 or the 12 for example…and re-do the indexing for it…again, obvious to say
The most economical thing to do, is not bother.
Does that one extra gear really matter? Making one 2-t jump into 2 1-t jumps, is kinda splitting hairs in my book.
<<I will live with the 9 spd brake calipers >> now that would be truly silly, to spend $ on to “upgrade” to ‘10 spd’ brake calipers.
The other stuff yer talking about should work. I don’t know if there may be a minor problem w/ pulleys in the 9 spd rear der. having less than optimal interface w/ a 10spd chain, but the overall range is identical. Good luck.