Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

Mountain Biking Mountain biking is one of the fastest growing sports in the world. Check out this forum to discuss the latest tips, tricks, gear and equipment in the world of mountain biking.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 12-30-06, 01:14 PM   #1
ashleywood.ash
Senior Member
Thread Starter
 
Join Date: Dec 2006
Bikes:
Posts: 78
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
how to convert to 9 speed

hi i want to convert to 9 speed what do i need. i have got the 9 speed rear cassette i know i need a 9 speed shifter but not sure what else i need.
ashleywood.ash is offline   Reply With Quote
Old 12-30-06, 01:32 PM   #2
free_pizza
later
 
free_pizza's Avatar
 
Join Date: Sep 2004
Bikes:
Posts: 2,471
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
are you going from 7 speed to 9 speed, or 8 speed to 9 speed?
free_pizza is offline   Reply With Quote
Old 12-30-06, 02:24 PM   #3
ashleywood.ash
Senior Member
Thread Starter
 
Join Date: Dec 2006
Bikes:
Posts: 78
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
8 speed my bike is 8 on back 3 on front
ashleywood.ash is offline   Reply With Quote
Old 12-30-06, 02:48 PM   #4
Svr
Senior Member
 
Svr's Avatar
 
Join Date: Dec 2005
Location: Atlanta, GA
Bikes:
Posts: 1,223
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Cassette, chain, and rear shifter.
Svr is offline   Reply With Quote
Old 12-30-06, 02:56 PM   #5
ashleywood.ash
Senior Member
Thread Starter
 
Join Date: Dec 2006
Bikes:
Posts: 78
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
do i not need a new crank so there is only one cog at the front instead of 3. also will my 9speed cassette fit on my existing hub.
ashleywood.ash is offline   Reply With Quote
Old 12-30-06, 02:59 PM   #6
nodnerb
Senior Member
 
nodnerb's Avatar
 
Join Date: Jul 2005
Location: Wpg. Manitoba
Bikes: Mountain Cycle Rumble. Mostly xt and raceface built. Dirt Jumper 3. Avid BB7s.
Posts: 494
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by ashleywood.ash
do i not need a new crank so there is only one cog at the front instead of 3. also will my 9speed cassette fit on my existing hub.
You can keep all three rings up front with the same crank. Yes, the cassette will fit your existing hub.
nodnerb is offline   Reply With Quote
Old 12-30-06, 04:50 PM   #7
ashleywood.ash
Senior Member
Thread Starter
 
Join Date: Dec 2006
Bikes:
Posts: 78
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
ok but i would like to convert to the single cog on the front so i only need the one shifter but dont no what i need to do to convert to one cog
ashleywood.ash is offline   Reply With Quote
Old 12-30-06, 05:05 PM   #8
EJ123
'05 NUEser
 
EJ123's Avatar
 
Join Date: Aug 2005
Bikes:
Posts: 3,370
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
I think you mean chainring on the front but if you do do the one cog up front you only need the one shifter for the rear derailler. If your doing jumping or something it might be good to have one of those chain tensioner whatever you call them things to prevent the chain from jumping off the teeth. If you have a triple crankset you could just leave it on whichever ring you prefer. Or you could have one chainring with a bashguard and the tensioner thing.
EJ123 is offline   Reply With Quote
Old 12-30-06, 05:23 PM   #9
ashleywood.ash
Senior Member
Thread Starter
 
Join Date: Dec 2006
Bikes:
Posts: 78
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
yeah thats right. i want the one cog one with the chain thing. can you fit a bmx chain ring to a mountain bike?
ashleywood.ash is offline   Reply With Quote
Old 12-30-06, 06:52 PM   #10
JoeT
Just ride
 
JoeT's Avatar
 
Join Date: Dec 2006
Location: Planet Houston
Bikes: Salsa Big Mama, Legend Dreamspeed, several frankenbikes.
Posts: 9
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
What you're talking about is called a 1x9 setup. A 9 speed cassette will work in place of an 8 speed. All you'll need is the narrower chain for 9 speed and a new rear shifter. For the front, ditch the granny gear, replace the big ring with a bash guard/rock ring. You might also want to ad an n-gear jump stop chain guide to make sure the chain can't jump off to the inside (the bash guard keeps it from jumping off to the outside).

No, you can't use a bmx chain with a 9 speed cassette. It is too wide.

Just curious, why change to 9 speed? 8 speed can cover the same range and is more robust, since the chain is wider... I usually run a 1x8 (or even 1x7) for my projects. Have fun.

-Joe
JoeT is offline   Reply With Quote
Old 12-31-06, 04:36 AM   #11
ashleywood.ash
Senior Member
Thread Starter
 
Join Date: Dec 2006
Bikes:
Posts: 78
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
magic thank you.
to answer the question i heard that 8 speed is harder to set up the gearing and the gears slip a lot which is what is happening in my bike now the gears always slip and i cant get it quite right. i was told it is easier to stop that using 9 speed
ashleywood.ash is offline   Reply With Quote
Old 12-31-06, 08:32 AM   #12
JoeT
Just ride
 
JoeT's Avatar
 
Join Date: Dec 2006
Location: Planet Houston
Bikes: Salsa Big Mama, Legend Dreamspeed, several frankenbikes.
Posts: 9
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hmmm... never heard that about 8-speed. Maybe others will chime in also. I suspect you've just got some worn components causing slipping. The same thing will happen to 9-speed as they wear. If you want to describe the slipping in detail, I'm sure the group can troubleshoot it for you (and maybe save you some money).

-Joe

Quote:
Originally Posted by ashleywood.ash
magic thank you.
to answer the question i heard that 8 speed is harder to set up the gearing and the gears slip a lot which is what is happening in my bike now the gears always slip and i cant get it quite right. i was told it is easier to stop that using 9 speed
JoeT is offline   Reply With Quote
Old 12-31-06, 11:22 AM   #13
ashleywood.ash
Senior Member
Thread Starter
 
Join Date: Dec 2006
Bikes:
Posts: 78
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
all components are fairly new sram stuff dont no if thats very good tho it came with bike. well i will select my gear and all will be fine for flat riding then as soon as i come to a climb and have to stand up to pedal the gears slip and it hurts mite be my grip shift gears though they have a bit of play between each click selection. i plan on changing them to shimano shifters.
ashleywood.ash is offline   Reply With Quote
Old 12-31-06, 11:46 AM   #14
jimbud
Senior Member
 
jimbud's Avatar
 
Join Date: Sep 2005
Location: Bring warm clothing!
Bikes: Colnago Dream, Kestrel Evoke, Giant XTC Hardtail
Posts: 2,443
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
You might want to figure out why your 8 speed set up is slipping or between gears before you lay down money on a new 9 speed set up. Sort of sounds like a bent derailluer or something.
__________________
jimbud is offline   Reply With Quote
Old 12-31-06, 01:05 PM   #15
EJ123
'05 NUEser
 
EJ123's Avatar
 
Join Date: Aug 2005
Bikes:
Posts: 3,370
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Check your chain links also.
EJ123 is offline   Reply With Quote
Old 12-31-06, 01:44 PM   #16
roadfix
hello
 
roadfix's Avatar
 
Join Date: May 2003
Location: Los Angeles
Bikes:
Posts: 18,556
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Actually, if your 8 speed chain is still good use it on your new 9 speed cassette. Tolerances are not that tight on the 9 speed. I'm running SRAM 8 speed chains on both my 9 speed mountain and touring bikes. Of course, once these chains need replacing Ill replace them 9 speed specific chains.
roadfix is offline   Reply With Quote
Old 01-01-07, 05:26 PM   #17
willtsmith_nwi
Senior Member
 
Join Date: May 2004
Bikes:
Posts: 1,398
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Wear of the Rings ...

Quote:
Originally Posted by nodnerb
You can keep all three rings up front with the same crank. Yes, the cassette will fit your existing hub.
Depending on chain wear, he may also need new chainrings as well.
willtsmith_nwi is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -6. The time now is 10:35 PM.