350 vs. 450

PRM31
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Edited Date/Time 8/16/2021 5:51pm
I’m looking to try something different. Grew up on 2Ts, had one ‘09 CRF250R, and more recently an ‘04 CR250 and ‘05 RM125(144). Now I’d like a fuel injected (read - no jetting), electric start, latest generation bike. Possibly race vet class, mostly track for fun though. One thing I hated about the CRF was the heavy feel and engine inertia. Electric smooth motor, but it felt 100lbs heavier than a CR. I don’t mind revving a bike and shifting as necessary. In fact I really enjoy 125s, but want something with a more mello oomph for this bike (relative to a 125). I’ve sat on the ‘19 KX450, YZ450F and 350SXF. The KX felt really good but the other two weren’t bad. I’m 175lbs so can adjust any of them to work I’m sure. The real question, which can only be answered by riding them, is how much lighter feeling is the 350 vs a 450? If I do race am I going to suffer significantly more wrestling a 450 around vs a 350? My dilemma is I’m leaning towards the KX, or YZ (just because they are new and look cool...), but IF the 450s are really much less nimble and forgiving, then I’d probably end up liking a 350 better. Any vet riders out there who have ridden both have any insight?
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walent215
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Ridgecrest, CA US
8/31/2018 5:10am
PRM31 wrote:
I’m looking to try something different. Grew up on 2Ts, had one ‘09 CRF250R, and more recently an ‘04 CR250 and ‘05 RM125(144). Now I’d like...
I’m looking to try something different. Grew up on 2Ts, had one ‘09 CRF250R, and more recently an ‘04 CR250 and ‘05 RM125(144). Now I’d like a fuel injected (read - no jetting), electric start, latest generation bike. Possibly race vet class, mostly track for fun though. One thing I hated about the CRF was the heavy feel and engine inertia. Electric smooth motor, but it felt 100lbs heavier than a CR. I don’t mind revving a bike and shifting as necessary. In fact I really enjoy 125s, but want something with a more mello oomph for this bike (relative to a 125). I’ve sat on the ‘19 KX450, YZ450F and 350SXF. The KX felt really good but the other two weren’t bad. I’m 175lbs so can adjust any of them to work I’m sure. The real question, which can only be answered by riding them, is how much lighter feeling is the 350 vs a 450? If I do race am I going to suffer significantly more wrestling a 450 around vs a 350? My dilemma is I’m leaning towards the KX, or YZ (just because they are new and look cool...), but IF the 450s are really much less nimble and forgiving, then I’d probably end up liking a 350 better. Any vet riders out there who have ridden both have any insight?
easy choice with what you've just mentioned. 350 all day. 450s are alot of bike. The 350 is alot of bike too but will be much easier transition for you
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kb228
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8/31/2018 5:18am
Do you have a pair of balls between your legs? If so, get a 4fatty
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peltier626
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8/31/2018 5:39am
350 is the vet go to bike. I went from a 125 to a 250F to a 350F over the course of time (20 years). I've ridden my buddies 450's and can last longer and go faster on the smaller bikes. Really liked the 350, but when it was time to purchase another bike I went back to a yz250f because of good pricing and i wanted to get matching bikes with my son. When it's time to buy again i definitely will be considering a 350f again.
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James918
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Callaway, VA US
8/31/2018 5:53am
I’m 45 and been racing most my life. I was so board with the 450 and missed the fun of riding the bike (opposed to controlling the power of the bike). I don’t care what anyone says a 450 has a lot of power and takes a lot of energy to STOP and corner the bike. The 350 reminds me of being a kid again. I’ve been riding twice as much as I have in the past. It very much reminds me of a 2 stroke cause you can rev the heck out of it and just muscle it through sections. Try doing that on a 450 and tell me your not exhausted in one lap. It’s the best bike I’ve ever owned. So much fun to pin and throw around. Corners great as well. I actually am doing better at the races and holeshot many times. Just remember to rev it and then rev it some more ?. It’s a 3 stroke!
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Pirate421
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MA US
8/31/2018 6:09am
I’ll be another vote for the 350. As someone who has always had 250 two strokes, I always hated the engine braking and weight of big 4 strokes. The 350 has a much freer feeling and I thought it was a lot like my 250 2t power wise, except it never runs out on top end like a 250 2t. Super light on paper but also feels just as light on the track and I didn’t feel any weight penalty compared to my 250sx.
3
stone881
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8/31/2018 6:16am
I second this post from above, get the 3 stroke, its a lot more fun! Unless you plan to get into racing often and/or do a lot dune riding.

I was in a similar boat as you, had been riding 250 smokers after a couple of 06/08 Honda 450's and wanted to get on a modern machine, but still wanted to "work" for it. The 350 was the answer and still requires the rider to use all of his skills, whereas a 450 you can just put it in 3rd and cruise around.
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walleyeguy
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Centerville, PA US
8/31/2018 7:04am
Bought a 17 FX350. Best bike I ever rode. Last bike was a 14 yz250f which was amazing too but this Husky has it in almost ever category.
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PRM31
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8/31/2018 7:27am Edited Date/Time 8/31/2018 7:31am
Thanks for inputs. Well, that supports my suspicions. I’ve watched all the YouTube videos and reviews I could find and often here subtle comments about riding 450s as not being quite as enjoyable. Now, if Yamaha just put a 350 in the 250 chassis.. I’ll happily support Husky or KTM. I do like the looks of the white Austrian bikes.
PRM31
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8/31/2018 7:30am
stone881 wrote:
I second this post from above, get the 3 stroke, its a lot more fun! Unless you plan to get into racing often and/or do a...
I second this post from above, get the 3 stroke, its a lot more fun! Unless you plan to get into racing often and/or do a lot dune riding.

I was in a similar boat as you, had been riding 250 smokers after a couple of 06/08 Honda 450's and wanted to get on a modern machine, but still wanted to "work" for it. The 350 was the answer and still requires the rider to use all of his skills, whereas a 450 you can just put it in 3rd and cruise around.
See you’re in CO. Is Berthoud still open? Looong time ago that was a great track.
Gilby122
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WY US
8/31/2018 7:38am
I'm kind of the opposite. Just sold my 350 (which I loved) and bought a new RMZ450. I'm still working on getting it set up to where I feel comfortable, but so far I love the switch. I'm able to do a few more things on the 450 that I couldn't on my 350. One jump in particular I can take the inside and clear the triple where as before it took everything I had from the outside.

That said, I do/did notice it takes more for me to ride it. Get tired a little quicker. Whether that's the 450 or my setup so far remains to be seen.
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BR8ES
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8/31/2018 11:06am
stone881 wrote:
I second this post from above, get the 3 stroke, its a lot more fun! Unless you plan to get into racing often and/or do a...
I second this post from above, get the 3 stroke, its a lot more fun! Unless you plan to get into racing often and/or do a lot dune riding.

I was in a similar boat as you, had been riding 250 smokers after a couple of 06/08 Honda 450's and wanted to get on a modern machine, but still wanted to "work" for it. The 350 was the answer and still requires the rider to use all of his skills, whereas a 450 you can just put it in 3rd and cruise around.
PRM31 wrote:
See you’re in CO. Is Berthoud still open? Looong time ago that was a great track.
No, they are not. Been permanently closed all year, was open in 17 after being closed. Was a decent place.
8/31/2018 12:24pm
peltier626 wrote:
350 is the vet go to bike. I went from a 125 to a 250F to a 350F over the course of time (20 years). I've...
350 is the vet go to bike. I went from a 125 to a 250F to a 350F over the course of time (20 years). I've ridden my buddies 450's and can last longer and go faster on the smaller bikes. Really liked the 350, but when it was time to purchase another bike I went back to a yz250f because of good pricing and i wanted to get matching bikes with my son. When it's time to buy again i definitely will be considering a 350f again.
Can confirm. I rode a new 2018 KX250F and it just wasn't very fun to ride tbh. Also rode a KX450F, and it felt like a rocket powered tank and not worth the risk in the 40+ class with a job to go to Monday mornings.

Ended up with a nice 350 SX-F. The power is just incredible. I actually bought an EXC muffler to tame it down at first, but have since returned to a stock muffler for more power. I can lug it around like a 450, or wind it up like a 250 on steroids. The power is not surprising, but it's very exciting to ride.

It feels great.. it mean it's a 350, so there is more motor mass but for a four stroke I like it (I've only ridden two strokes in motocross so this is my first thumper).
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Agent717
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Cedar Park, TX US
8/31/2018 12:54pm
Coming off of 250fs in my early 20's I really smoothed out my riding style when I hopped on a 450. Over the years, though, I felt like I was losing my edge. Just getting lazy and losing my ability to carry momentum through corners etc. Overall it just felt boring yet dangerous if that makes any sense.

I'm a little big for a 250f now but I decided to pick one up for a year or so just to get my mojo back. The 15 YZ250F was freaking GOOD. Loved that bike but it served its' purpose and I started wanting a little more again.

Enter the FC350. The power is damn near perfect in terms of how much there is. Unlike the 250f I can race the 350 in the Vet class with no disadvantage that I'm aware of. I did find there to be a bit of a learning curve to figure out how best to ride the thing. Took me a while but in general I really like it. I'm still not in love with the suspension but it works good enough for me to not jack with it every time I'm at the track.

On a whim, I picked up an old YZ125 to build and holy hell is that thing fun. It is faster than I remember but still slow. It makes it challenging and fun to ride though. I wouldn't want it to be my only bike but I'm in honeymoon phase and my 350 has been moved to the back of the garage for the time being. DON'T SELL YOUR RM!

Maybe I shared too much here but in the end, chalk it up to another 350 vote.


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stone881
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8/31/2018 1:32pm
stone881 wrote:
I second this post from above, get the 3 stroke, its a lot more fun! Unless you plan to get into racing often and/or do a...
I second this post from above, get the 3 stroke, its a lot more fun! Unless you plan to get into racing often and/or do a lot dune riding.

I was in a similar boat as you, had been riding 250 smokers after a couple of 06/08 Honda 450's and wanted to get on a modern machine, but still wanted to "work" for it. The 350 was the answer and still requires the rider to use all of his skills, whereas a 450 you can just put it in 3rd and cruise around.
PRM31 wrote:
See you’re in CO. Is Berthoud still open? Looong time ago that was a great track.
It shut down this year. It will be paved over soon enough I guess.
Nystrom7
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8/31/2018 1:38pm Edited Date/Time 8/31/2018 1:39pm
I say 450 i think they are easy to ride. The 350 you have to rev and its insane fast att hi rpm ? maybe its just me but the 350 wears me out. But of youre more of an aggressive rider who can handle the power the 350 might fit, but they do have alot of power high up in the rpm's
rompin87
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8/31/2018 1:54pm
kb228 wrote:
Do you have a pair of balls between your legs? If so, get a 4fatty
See you at A1 with those big balls of yours.
1
crowe176
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Spring Lake, MI US
8/31/2018 6:31pm
Nystrom7 wrote:
I say 450 i think they are easy to ride. The 350 you have to rev and its insane fast att hi rpm ? maybe its...
I say 450 i think they are easy to ride. The 350 you have to rev and its insane fast att hi rpm ? maybe its just me but the 350 wears me out. But of youre more of an aggressive rider who can handle the power the 350 might fit, but they do have alot of power high up in the rpm's
I agree with this. Went from CRF450's, back to RM250, to a bunch of years off, and went with a 350 thinking light with power. Being out of riding shape, It's really taken some time to realize how important it is to rev 350's out. I've ridden friends 450's, and I really miss that 450 low end out of corners. IMO, 450's are easier to ride if you like to lug a gear higher. I'm really trying to love my 350, but I think I might end up going back to a 450 as i'm not as young and aggessive as I was when I was younger.. I just don't have the stamina to make a 350 sing for more than a few laps.

I should note, I have a 15 350, and I've read it's night and day compared to the newest 350's. Hopefully I can swing a leg over a newer one before I get a new bike.
NeedMoto
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Lincoln, CA US
8/31/2018 7:07pm
Nystrom7 wrote:
I say 450 i think they are easy to ride. The 350 you have to rev and its insane fast att hi rpm ? maybe its...
I say 450 i think they are easy to ride. The 350 you have to rev and its insane fast att hi rpm ? maybe its just me but the 350 wears me out. But of youre more of an aggressive rider who can handle the power the 350 might fit, but they do have alot of power high up in the rpm's
crowe176 wrote:
I agree with this. Went from CRF450's, back to RM250, to a bunch of years off, and went with a 350 thinking light with power. Being...
I agree with this. Went from CRF450's, back to RM250, to a bunch of years off, and went with a 350 thinking light with power. Being out of riding shape, It's really taken some time to realize how important it is to rev 350's out. I've ridden friends 450's, and I really miss that 450 low end out of corners. IMO, 450's are easier to ride if you like to lug a gear higher. I'm really trying to love my 350, but I think I might end up going back to a 450 as i'm not as young and aggessive as I was when I was younger.. I just don't have the stamina to make a 350 sing for more than a few laps.

I should note, I have a 15 350, and I've read it's night and day compared to the newest 350's. Hopefully I can swing a leg over a newer one before I get a new bike.
Agree with both these gents^^^

I had an 18 350, went back to a 450 as my style of riding is lugging it, using the torque.
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Myke
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8/31/2018 7:26pm
Nystrom7 wrote:
I say 450 i think they are easy to ride. The 350 you have to rev and its insane fast att hi rpm ? maybe its...
I say 450 i think they are easy to ride. The 350 you have to rev and its insane fast att hi rpm ? maybe its just me but the 350 wears me out. But of youre more of an aggressive rider who can handle the power the 350 might fit, but they do have alot of power high up in the rpm's
crowe176 wrote:
I agree with this. Went from CRF450's, back to RM250, to a bunch of years off, and went with a 350 thinking light with power. Being...
I agree with this. Went from CRF450's, back to RM250, to a bunch of years off, and went with a 350 thinking light with power. Being out of riding shape, It's really taken some time to realize how important it is to rev 350's out. I've ridden friends 450's, and I really miss that 450 low end out of corners. IMO, 450's are easier to ride if you like to lug a gear higher. I'm really trying to love my 350, but I think I might end up going back to a 450 as i'm not as young and aggessive as I was when I was younger.. I just don't have the stamina to make a 350 sing for more than a few laps.

I should note, I have a 15 350, and I've read it's night and day compared to the newest 350's. Hopefully I can swing a leg over a newer one before I get a new bike.
NeedMoto wrote:
Agree with both these gents^^^

I had an 18 350, went back to a 450 as my style of riding is lugging it, using the torque.
Same here, I lug as well. Plus I feel the suspension works better at low RPM. I have an '18 crf450 and was on a '15 350sxf.
RCMXracing
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N., TX US
9/1/2018 11:30am
Real simple: 20% more & 20% less.
350 IS lighter feeling, better cornering, later braking, on the throttle sooner and harder, less torque.
450 IS more of a monster, torque and masssive power for deep tracks, starts, and long straights, less in all other areas.
If you like and know how to get the most out of a 125
or 250F and like to ride agro go 350. If you are smoother and don’t want to ever think you don’t have enuff power or make excuses for a crap start go 450.
Kelz87
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9/1/2018 3:09pm
I went from a 250sx-f to a 350sx-f and love it. I also rode a same-year FC350 and it was smoother for sure, if I’d had the choice I’d probably have chosen it.

The 450 was wayyy too much for me. The 350 rides like a 250 that “breathes” imo. It has just pulls with less effort but not tearing my arms off like a 450
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bents
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9/1/2018 6:50pm
Kelz87 wrote:
I went from a 250sx-f to a 350sx-f and love it. I also rode a same-year FC350 and it was smoother for sure, if I’d had...
I went from a 250sx-f to a 350sx-f and love it. I also rode a same-year FC350 and it was smoother for sure, if I’d had the choice I’d probably have chosen it.

The 450 was wayyy too much for me. The 350 rides like a 250 that “breathes” imo. It has just pulls with less effort but not tearing my arms off like a 450
Bingo. Went from 450's to 250F and 250 2 strokes, back to 250F. I ruled out the 450 due to the fact that they are too fuckin powerful, for me. Last bike before my current 2018 Husky FC350 was a 2016 Yamaha 250F, and I am a long time yamaha guy but it just left me wanting. Sold it and bought the Husky-love, love, love it. In every way as this thread indicates. Not scared of the power, has better low end than a 250F, revs to the moon when you want/need it, its light, and handles beautifully. The perfect vet bike, for me. I get the 450 thing, but shit just happens too fast on these things, for me, at this point of mx for my riding and enjoyment. I love the 350.
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9/1/2018 6:57pm
I went from a TC250 to a CRF450 and love it. All about your riding style. I like to ride a wave of torque low in the rpm range.

I like the 350, it feels just as fast just higher up in the rpm range.
stone881
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Fruita, CO US
9/2/2018 6:44pm
Dizzy714 wrote:
How is a 350 in the dunes?
I loved mine in the dunes because there is just so much top end. Definitely feels more lively than a 450 in the dunes.

But if I was 200 plus pounds I would prefer a 450.

And you could always argue the "no replacement for displacement" for some types of riding.

T-Fish
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9/2/2018 8:25pm
You guys are killing me! Some say the 350, some say the 450.

Any of you have a 350 and want a 450 instead? I have a 450 and feel like I want a 350 instead.
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blaze 57
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Inchelium, WA US
9/2/2018 8:57pm
I have the new 450 ktm factory edition and the power is not tiring at all. Its just super smooth. Its not jerky power or anything that's hard to control and rips your arms off. Far from it. Yes it fast and strong but you can use the throttle level to keep from getting wasted and get around the track. Ktm has done a really good job creating a motor that saves your energy.

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