Boost 155 to 165 thoughts
- Thread starter WACT
- Start date
I like it. Just a little bit of work everytime.
Rail extensions might be an easier/faster process than disassmebling your skid.
There are quite a few discussions on this, so I'll give a short story:
For reasonable comparison, my sleds are both Khaos boosts with Fox QS3 shocks and shortened limiter straps. The '23 165 has a 2.75" track, the '25 155 has 3.25" track.
I have always been a 165 guy, and the 155 this year was an experiment. It's a really playful and fun sled, and more work (physically) to ride than the 165. Great setup for doing all the cool maneuvers for the gram and lots of wheelies. But, if you enjoy climbing it requires more momentum, and you can't slow down as much in very technical terrain by comparison with the 165. The 155 is easier to turn around, a little lighter, and just generally rides at a steeper pitch angle (track runs deeper into the snow; bigger trenches). If you want to ride with guys on longer tracks, you have to be better and ride faster in order to have any chance of making those lines with a shorter track.
I have a 165 x 3.25 track and rails sitting in the garage right now to convert my 155 to a 165, if that's any indication about where my experiment is going.
Exactly.
Foot position matters way more on a 155. 165 is definitely more capable and also easier to ride if you want to be lazy.
I used to ride a 165 but with how capable sleds are nowadays, the 155 is more fun. If it took 10 minutes to swap track lengths, I would run a 146 and a 165
Foot position matters way more on a 155. 165 is definitely more capable and also easier to ride if you want to be lazy.
I used to ride a 165 but with how capable sleds are nowadays, the 155 is more fun. If it took 10 minutes to swap track lengths, I would run a 146 and a 165
J
Jaynelson
Well-known member
Not a direct answer here, but just to add something - I feel like the 3.25" has breathed some fun back into the 165" track length. It picks up the front end more, feels lighter under power, and makes it much more inclined to do 155 type wheelies and such. Awesome in the powder, almost a bit too much grip in marginal snow at times! I'm running that in a 9R Khaos this year (I would only do a Khaos in a 165 length - don't see a case for a Pro) and so far I like it. The 165x2.75" is a great combo, but the spin on that track (which makes it easy to ride) also makes the front end feel more planted. So if you're thinking 165...I would go that route, give you live somewhere that gets good snowfall.
W
WACT
Member
Awesome feedback, totally agree with everything you said. Going thru similar experience this season.
I have a ‘25 khaos boost, 155/3.25 and I love it, but it’s handful when it gets tight and steep. Less forgiving.
Are there any advantages extending the track length on a 155 tunnel to a 165 over a 165 track/tunnel?
Or better to just buy 165?
It will definitely dig a deeper trench and crawl out of stuff better than a 165 slash tunnel. My friend cut his 165 9R and that thing will claw out of some impressive holes.
I'll let you know once mine is installed! In theory there are no downsides to 155 tunnel with 165 track other than perhaps a snow chunk hitting you in the back every now and then.
I had a 155 boost to crazy and went to a 165 boost to planted. So this year I went back to a 155 with the TRS skid and really enjoy the sled it’s a very nicely balanced skid for the boost not overly planted and not to wheelie prone I’m still trying to figure out the track thats best for me I started with the 300 lx and seemed a little trenchy for me little harder to get on top of the snow from a stop or slow tree riding. The 2.75 that everyone hates definitely gets on top better and is more forgiving in technical terrain then the 300 I know it’s because it’s spinning but so far I like it. Worst part of the 2.75 for me is going down hill.
Exit shocks or air? How the ride over stock? I'm actually one that doesn't hate the 2.8. It gets on snow fast and works in our sugar snow. You are missing out on some traction.
Exit shocks. I really like them but I do think most of the aftermarket options are good I got the x1s so only compression adjustment no rebound in my opinion unless you really know how to adjust suspension or like to tinker the extra adjustment for rebound isn’t something most people will use. A side note I have the lynx track on my 9R and like the track with that motor without the boost it’s easier to manage momentum in off throttle riding so you can mitigate trenching. If you go with the 300lx get it ported if you ride in heavy wet snow or you’ll carry some serious snow around with you
Ride is much better then stock MUCH better not sure how much is the skid or shocks also forgot Exit recommends no sway bar. I was reluctant to remove it because I did that a few years ago and didn’t like it. I’m usually following someone’s track almost never leading and I think it helps not getting bounced around in the ruts of other riders didn’t seem bad for riding on the trails either. Lighter snow or if your blazing your own trail most of the time probably won’t matter much
What is trs skid setup ?
Thomas racing. Justin Thomas. Really cool, just expensive. A person won't let it go when selling your sled.
I unhook them and like it better except trail. Stiffen shocks but they need stiffer springs and a revalve. One of the biggest deals, for me, is no feedback through the bars.
I like the way he controls transfer instead of screwing up the front by sucking up the limiter strap. My buddy might put one on his 155 kaos boost with 325. I like it better than 165 but once in a while you pay the price. I put the hurt on him on one steep hill in the trees. Rutted out down low. 165 858 got through it better and would get up on snow and goes. He needed more momentum. It was just wheelieing him up and he was done.
Was going to put pro strap in the khoas skid , and un khoas the shocks as much as possible .
Are you left with enough meat on the khoas strap if you drill a new hole ? Ie; the new hole is not 1/4” from the oem hole
Last edited:
