speedfreak14
Newbie
So i hear that 14.5 mm rollers for my clutch are a big improvment i went to my local yamaha dealer and they werent sure what i was talking about and not able to find me 14.5 mm rollers anyone know where to find em
rough rider
Expert
rollers
I have also been checking on 14.5 rollers i found some on ebay Part # 8ca-17624-30 crosses over to a new part number.8cr-17624-00 The inner diameter of roller must be 9mm if being used on a nytro. The rollers Im using are from a yamaha viper 700,
I have also been checking on 14.5 rollers i found some on ebay Part # 8ca-17624-30 crosses over to a new part number.8cr-17624-00 The inner diameter of roller must be 9mm if being used on a nytro. The rollers Im using are from a yamaha viper 700,
Super Sled
Lifetime Member
- Joined
- Feb 25, 2009
- Messages
- 3,631
- Reaction score
- 5
- Points
- 1,218
- Location
- Riding on the North Shore, MN
- Country
- USA
- Snowmobile
- Summit X
Pioneer Perf also sells them. He has them on his web site.
nytroman20
Expert
What are the benefits of smaller rollers?
Super Sled
Lifetime Member
- Joined
- Feb 25, 2009
- Messages
- 3,631
- Reaction score
- 5
- Points
- 1,218
- Location
- Riding on the North Shore, MN
- Country
- USA
- Snowmobile
- Summit X
Lower engagement and quicker shifts at lower rpm's.
Mtnviper
TY 4 Stroke Master
- Joined
- Aug 19, 2003
- Messages
- 1,476
- Reaction score
- 340
- Points
- 1,288
- Location
- Burlington Wa.
- Website
- fourstrokesolutionsllc.com
Super Sled said:
X2
Drawbacks are that the primary clutch dosen't backshift quite as well at lower speeds. For example during mountain/slow speed boodocking through the tight trees, I found the primary backshift response to be somewhat lazy.
This is one of the reasons the moutain sleds have larger rollers.
Since I do a lot of low speed boondocking/mountain riding, I put the stock rollers back in.
The 14.5's did work well on the trail however.
Bill
AttakDog
TY 4 Stroke Junkie
I got mine from Ulmer. Also helped belt life
nytroman20
Expert
I do mostly trails.. What are the stock ones on an rtx?
15.6
speedfreak14
Newbie
thanks guys for all ur help i think i found what im looking for
dox06
Expert
- Joined
- Mar 25, 2007
- Messages
- 329
- Reaction score
- 9
- Points
- 823
- Location
- Jackson, Michigan
- Country
- USA
- Snowmobile
- 17 SW XTX SE
17 G4 Gade 850
rollers
I switched to the 14.5 near the end of last year and loved what they did for my xtx. definately worth the change.
I switched to the 14.5 near the end of last year and loved what they did for my xtx. definately worth the change.
Super Sled
Lifetime Member
- Joined
- Feb 25, 2009
- Messages
- 3,631
- Reaction score
- 5
- Points
- 1,218
- Location
- Riding on the North Shore, MN
- Country
- USA
- Snowmobile
- Summit X
I'm considering it on my modified attak GT to lower my engagement, which is a tad on the high side.
But there are always trade offs and i'm worried the backshifting in corner to corner situations at high speeds on tight twisty trails will suffer. But I guess I won't know until I try it!
But there are always trade offs and i'm worried the backshifting in corner to corner situations at high speeds on tight twisty trails will suffer. But I guess I won't know until I try it!
- Joined
- Apr 17, 2003
- Messages
- 5,460
- Reaction score
- 1,257
- Points
- 2,003
- Location
- Menno, SD
- Website
- www.ulmerracing.com
- Country
- USA
- Snowmobile
- 2014 Yamaha SR Viper LTX, 2014 Yamaha SR Viper RTX SE, 2015 Yamaha SR Viper MTX SE 162 (turbo), 2015 Yamaha SR Viper MTX SE 153
- LOCATION
- Menno, SD
- WEBSITE
- www.ulmerracing.com
There is no reason to put the 14.5mm rollers in your Apex/Attak model as it already has the 14.5mm rollers in it right from the factory.
Super Sled
Lifetime Member
- Joined
- Feb 25, 2009
- Messages
- 3,631
- Reaction score
- 5
- Points
- 1,218
- Location
- Riding on the North Shore, MN
- Country
- USA
- Snowmobile
- Summit X
Geeez, I always thought it came with the 15's or 15.6's. Thx for the info, Allan.
Edit: OK, so this was bothering me so I've been scouring the various Apex service manuals and supplements MrSled posted on the site. Many of the Apexes have 15 mm rollers, but the Attak GT's (all "GT" series Apex sleds) clearly have 14.5 mm's, along with the "R" series Apexes.
God call Allan!
Edit: OK, so this was bothering me so I've been scouring the various Apex service manuals and supplements MrSled posted on the site. Many of the Apexes have 15 mm rollers, but the Attak GT's (all "GT" series Apex sleds) clearly have 14.5 mm's, along with the "R" series Apexes.
God call Allan!
