Is this 7-speed Shimano Cassette a suitable Suntour replacement?
06-19-10, 03:05 PM
#1
Senior Member
Thread Starter
Join Date: Apr 2009
Location: Detroit
Posts: 10,327
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Is this 7-speed Shimano Cassette a suitable Suntour replacement?
I need advice on replacing a Suntour Powerflo 7-speed Cassette on an old GT Outpost Mountain Bike ... I am not sure if they are supposed to look this way, but the cogs look quite worn to me. See photo below - it's a 12-28. (I already ditched the chain.)
Note that this one had an external lock ring (shown above), which threaded into the INNER diameter of the cassette hub. - I had to remove it using a freewheel removing tool, while holding onto the cogs with a chain whip.
I’m no expert, but I thought all cassettes had a locking COG, that are threaded onto the OUTER diameter of the cassette hub, and removed with two chain whips.
Anyway – I am shopping for a new 7 speed cassette, and I found this one.
Will it fit my existing cassette hub???
(I do understand I need a hyperglide chain as well.)
If it makes any difference, the rear DR is a Shimano Altus.
Your guidance is appreciated!
Note that this one had an external lock ring (shown above), which threaded into the INNER diameter of the cassette hub. - I had to remove it using a freewheel removing tool, while holding onto the cogs with a chain whip.
I’m no expert, but I thought all cassettes had a locking COG, that are threaded onto the OUTER diameter of the cassette hub, and removed with two chain whips.
Anyway – I am shopping for a new 7 speed cassette, and I found this one.
Will it fit my existing cassette hub???
(I do understand I need a hyperglide chain as well.)
If it makes any difference, the rear DR is a Shimano Altus.
Your guidance is appreciated!
__________________
- Auchen
- Auchen
06-19-10, 04:28 PM
#2
Senior Member
Join Date: Apr 2009
Location: New Rochelle, NY
Posts: 36,049
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
Mentioned: 121 Post(s)
Tagged: 1 Thread(s)
Quoted: 4327 Post(s)
From the picture, that looks like a Shimano Body ( or analog), so a Sram or Shimano cassette should fit.
__________________
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
FB
Chain-L site
An ounce of diagnosis is worth a pound of cure.
“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
“One accurate measurement is worth a thousand expert opinions” - Adm Grace Murray Hopper - USN
WARNING, I'm from New York. Thin skinned people should maintain safe distance.
06-19-10, 10:11 PM
#3
Senior Member
Thread Starter
Join Date: Apr 2009
Location: Detroit
Posts: 10,327
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Thanks FBinNY - - I feel that I can go with the 7-speed replacement from Niagara then. ( I obviously know little about cassettes and thought FW threading into the Inner-diameter of the hub was peculiar.)
__________________
- Auchen
- Auchen
06-19-10, 11:09 PM
#4
Low car diet
Join Date: Aug 2007
Location: Corvallis, OR, USA
Posts: 2,407
Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Old Shimano uniglide freehubs had outer threads, which the smallest cog screwed onto; modern hyperglide-compatible freehubs (like yours) have internal threads, which a lockring screws into. http://sheldonbrown.com/k7.html#uniglide
The cassette you linked will fit. Any 7-speed chain will work.
I'm surprised the freewheel removal tool fit. Shimano cassette lockring and freewheel splines are similar, but not exact. Sure you didn't actually use a lockring tool? Maybe Suntour lockrings are a little different than Shimano. Anyway, if you find that the tool doesn't work with the new Shimano lockring, you could just re-use the old Suntour lockring.
The cassette you linked will fit. Any 7-speed chain will work.
I'm surprised the freewheel removal tool fit. Shimano cassette lockring and freewheel splines are similar, but not exact. Sure you didn't actually use a lockring tool? Maybe Suntour lockrings are a little different than Shimano. Anyway, if you find that the tool doesn't work with the new Shimano lockring, you could just re-use the old Suntour lockring.
06-19-10, 11:54 PM
#5
Senior Member
Thread Starter
Join Date: Apr 2009
Location: Detroit
Posts: 10,327
Mentioned: 6 Post(s)
Tagged: 0 Thread(s)
Quoted: 11 Post(s)
Originally Posted by JiveTurkey
Old Shimano uniglide freehubs had outer threads, which the smallest cog screwed onto; modern hyperglide-compatible freehubs (like yours) have internal threads, which a lockring screws into. http://sheldonbrown.com/k7.html#uniglide
The cassette you linked will fit. Any 7-speed chain will work.
I'm surprised the freewheel removal tool fit. Shimano cassette lockring and freewheel splines are similar, but not exact. Sure you didn't actually use a lockring tool? Maybe Suntour lockrings are a little different than Shimano. Anyway, if you find that the tool doesn't work with the new Shimano lockring, you could just re-use the old Suntour lockring.
The cassette you linked will fit. Any 7-speed chain will work.
I'm surprised the freewheel removal tool fit. Shimano cassette lockring and freewheel splines are similar, but not exact. Sure you didn't actually use a lockring tool? Maybe Suntour lockrings are a little different than Shimano. Anyway, if you find that the tool doesn't work with the new Shimano lockring, you could just re-use the old Suntour lockring.
I used my Park FR5 freewheel tool to take the lock ring off. It fit perfectly. I'll keep it around (with the old lock ring) in case I need it again. Thanks so much !
__________________
- Auchen
- Auchen
06-20-10, 12:41 AM
#6
Low car diet
Join Date: Aug 2007
Location: Corvallis, OR, USA
Posts: 2,407
Bikes: 2006 Windsor Dover w/105, 2007 GT Avalanche w/XT, 1995 Trek 820 setup for touring, 201? Yeah single-speed folder, 199? Huffy tandem.
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Now that I think about it, I've only tried using a lockring tool in a freewheel, not the other way around. The lockring tool seemed a bit too big.
«
Previous Thread
|
Next Thread
»
