9 speed shifter with 8 speed derailer and cassette?
05-02-06, 04:49 PM
#1
Newbie
Thread Starter
Join Date: May 2006
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
9 speed shifter with 8 speed derailer and cassette?
i have a bike with shimano ultegra components. the bike is an 8 speed, but i am replacing the shifters (sti's). if i buy 9 speed shifters (either 105, ultegra, or dura ace) will they work with my current 8 speed derailer and cassette? i find much cheaper and much better deals for 9 speed shifters on ebay than 8. thanks in advance...
05-02-06, 04:56 PM
#2
Senior Member
Join Date: Dec 2004
Location: Quahog, RI
Posts: 1,509
Bikes: Giant TCR Comps, Cdale R5000, Klein Q-Pro, Litespeed Siena, Piasano 105, Redline Conquest Pro, Voodoo Bizango, Fuji Aloha
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 3 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
No can do. The 8 pulls slightly more cable length with each click than the 9. Replace the 8 speed cassette with a 9 speed and then you're 9 speed all the way. The width of the cassettes are the same so your wheels are cool. The 8 speed rear derailler will work fine as will the front der. 105 cassettes can be had for 40 bucks and a chain for another 20.
05-02-06, 04:59 PM
#3
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,096 Times
in
742 Posts
Your dreailleurs will work fine. You will need a 9-speed cassette and chain.
05-02-06, 05:40 PM
#4
cycles per second
Join Date: Oct 2003
Location: Minnesota
Posts: 1,930
Bikes: Early 1980's Ishiwata 022 steel sport/touring, 1986 Vitus 979, 1988 DiamondBack Apex, 1997 Softride PowerWing 700, 2001 Trek OCLV 110
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 44 Post(s)
Liked 71 Times
in
48 Posts
The 9-speed shifters will work. You have the choice of buying 9-speed cassette and chain or using the 8-speed cassette and chain by attaching the cable differently at the rear derailer - https://www.sheldonbrown.com/dura-ace.html#indexing
05-02-06, 07:11 PM
#5
Senior Member
Join Date: Oct 2005
Location: Fresno, CA
Posts: 4,454
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 128 Post(s)
Likes: 0
Liked 12 Times
in
10 Posts
Shimano deraillers are no different between 6, 7, 8, 9 and 10-speed indexing (except for pre-9-speed Dura Ace). 9 and 10-speed chains are narrower. You generally need the same number of cogs as your shifter has speeds for, especially for 8, 9 and 10 (since the cassette is the same width).
If you're going to update, you could just go 10-speed shifters, cassette, and chain. Or 9-speed shifters, cassette and chain.
Or just get new 8-speed shifters if you don't want to update. But your cassette and chain are probably partially worn anyway, so may as well at least to go 9-speed.
If you're going to update, you could just go 10-speed shifters, cassette, and chain. Or 9-speed shifters, cassette and chain.
Or just get new 8-speed shifters if you don't want to update. But your cassette and chain are probably partially worn anyway, so may as well at least to go 9-speed.
__________________
"c" is not a unit that measures tire width
"c" is not a unit that measures tire width
05-02-06, 08:59 PM
#6
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,096 Times
in
742 Posts
Check the regular mailorder channels (Nashbar, Performance, etc.) for prices on 105 9-speed brifters. They are going for either side of $140 since they are obsolete now that 10-speed 105 is available. You may equal or do better than on e-bay and with better confidence in the seller.
05-02-06, 09:05 PM
#7
Newbie
Thread Starter
Join Date: May 2006
Posts: 2
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
thanks...i think i may just upgrade to a 9 speed--another question though, my current 8 speed cassette is 12-23--does the 9 speed cassette i purchase need to be the same?
05-02-06, 09:10 PM
#8
Senior Member
Join Date: Aug 2005
Location: Pittsburgh, PA
Posts: 33,656
Bikes: '96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '20 Surly Midnight Special, All are 3x10. It is hilly around here!
Mentioned: 39 Post(s)
Tagged: 0 Thread(s)
Quoted: 2026 Post(s)
Likes: 0
Liked 1,096 Times
in
742 Posts
Originally Posted by itsthejjones
thanks...i think i may just upgrade to a 9 speed--another question though, my current 8 speed cassette is 12-23--does the 9 speed cassette I purchase need to be the same?
