Bigger bike?

Thess87

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I have and have had tw200’s and a dirt bike before but never took the dirt bikes to the mountains I’ve only brought the tw’s. Why is the most common to stay in the 200-250cc bikes? Is there a problem with a bigger bike like 450?
 
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Thess87

Thess87

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250 - 350 is agile and light. More than enough for trails. Aside from wasted power and higher fuel consumption, with a little more weight and expense, no reason not to run a 450 4 stroke. Just not needed.
Thanks I’ve never had a 450 but that’s what I was wondering. Also I’m 6’8” 270 so alittle bigger frame bike wouldn’t hurt my feelings
 

prm

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Really just depends on what you are doing. At your size I see no reason to not have a 450. Just get one suited to the style of riding you do. I am rather inseam challenged so shorter bikes are easier for me. Though I have raced 80s, 125s, a 250 and a 480.
 

tdhanses

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The KTM 500 exc-f is imo the best mountain bike for so many uses and it’s street legal, the 450 has snappy power while the 500 is like a tractor for not much more weight penalty. The downside is cost to play, but if all you want is to putt around I’d just keep the tw200’s honestly. You start looking at more modern bikes and they just are much more capable but also more deadly on single track.

I love my 500 in the mountains but I also raced motocross growing up and have 30+ years on a motorcycle. Also I’m not a 2stroke fan but the ktm 300 seems to be what a ton of enduro racers use, I just prefer a 4 stroke.
 
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tdhanses

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Thanks I’ve never had a 450 but that’s what I was wondering. Also I’m 6’8” 270 so alittle bigger frame bike wouldn’t hurt my feelings
It really depends on your skills, a 450 can be a lot of bike Power wise, it‘s probably lighter than your tw200 as well. The Honda 450RL though is not a power monster of a motocross bike, it’s detuned and street legal and would also be a good option.
 
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My brother in law does Moab a few times a year. He’s has 7 or 8 week long and up trips under his belt out there. He usually runs a Honda 650R, but lately he’s talked about downsizing to a 250. He runs a Honda 450R (?) on the track so he’s not a chicken. His thoughts on downsizing primarily pertain to what has already been written. A good 250 is enough for the trails.

As for me…I’m short and well, a man’s got to know his limitations….I run a TW.
 
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Thess87

Thess87

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Getting down to crunch time so I found a crf450x and pulled the trigger. I’ll try it this year and see. It’s dang sure got more power then I’ll ever need. 90% of my riding will just be on the mountain roads that way I don’t have to beat the hell outa my truck at 10 mph. Trying to track down a big rack for the back now
 

tdhanses

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Getting down to crunch time so I found a crf450x and pulled the trigger. I’ll try it this year and see. It’s dang sure got more power then I’ll ever need. 90% of my riding will just be on the mountain roads that way I don’t have to beat the hell outa my truck at 10 mph. Trying to track down a big rack for the back now
Globe trotting might have one for it.
 

ORJoe

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Displacement isn't the biggest difference in trail bikes.
A 250 XCW, 350 XCW, 450 XCW and 500 EXC are all going to have more in common with each other than their SXF counterparts, and the 500 EXC will be the easier trailbike than a 250SXF.

CRF450X is probably the right bike for you, CRF250R would have been wrong.
 

TheGDog

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Hrmm... some thoughts on : Smaller bike vs a full-on BigBore bike in this application.

-=-=-

Well... the seat height is one. The more and more tricky and technical a lil single track goat trail becomes, the "bigger" your bike starts feeling.

If a person has substantially less experience, a BigBore bike can get 'em into trouble in the blink of an eye! The InterWebz is absolutely chocked-full of endless whiskey-throttle crash videos, HA!

But... at the same time... if the user has setup and dialed-in their BigBore machine to be more oriented towards trail/enduro then they can actually be easier to ride over sketchy terrain. Since they have more power on tap, and since folks tend to slap on a slightly heavier flywheel, to tame down the hit of power, while simultaneously improving it's climbing and slow-going tractability.

Biggest thing I'd say is... really determine for yourself if you believe you'll be Ok, in the kinda places you ride into and thru, with dealing with long-legged taller seat-height... when ya got a heavy pack on. REPEAT: When ya got a heavy pack on!

Also most of today's modern bigbore bikes for Track or Dez.. have very thin padding on the saddles. A lot of trail-oriented or dual-sport models tend to have slightly nicer more cushy seats too (but NOT ALWAYS).

For tight technical goat-trail type stuff on a BigBore bike... like all of a sudden the trail makes a hard turn and "Oh Shoot!" starts climbing up steeply, with no run at it, and it's chocked full of human-head or bigger sized stones... on a BigBore machine... if you understand how to click into a higher gear than you think you need, and slightly feather the clutch while you're executing the climbing over those stones... it makes the rear suspension better eat-up the bumps, rather than you being all wound-out in 2nd and bouncy-bouncing all pogo-style up the same climb. The latter taxes you much-more energy-wise throughout the day. So always remember "Clutch is Key!"

For mountain trails, I'd definitely recommend making sure the front brake actuation is a nice and light 1-finger dealio. Hydraulic clutch/brake levers are AWESOME for feel. But...they do introduce more potential points of failure though. So if you elect to go with a model that's cable-actuated.... also think about getting teflon-coated cables (Terry Cable, or whatever other manufacturer makes them these days) if your application involves cable-actuated. That also saves you quite a bit of forearm pump. The more powerful bigbore bike will require stronger clutch basket springs, so these little things to ease that clutch pull for you pay dividends over the course of the whole ride at staving off forearm pump.


A front brake that has a good and precise feel (modulation) to the braking in the lever. Cause when you have to ride the brakes down a loooong downhill single-track goat trail... you wanna do all you can to lower your amount of forearm-pump you'll experience, because when you're going down that slow technical trail.. your pack and it's weight are gonna make your triceps BURN! HaHA! So reducing fatigue from forearm pump will help ya not have to stop as much along the way down to let the pump calm back down.

REMEMBER: Thee biggest thing that causes crashes offroad is fatigue! fatigue! fatigue! And in a hunting application you're doing a lot of out of the norm things. That heavy pack and rifle being strapped to you would change things a lot. It makes the need to be able to ride comfortable SEATED become much more important. Again, referring to the skimpy saddle cushioning thing. If you pick a model that does have modern thin seat, I'd definitely look into getting a Gel Seat, without question.

Another thing to think about that might help make your decision is to consider the terrain you'll be riding in and decide if for you... that terrain is rough enough that it'd be a good idea to get highest ground clearance you can manage to ride well or not. Like... if I knew the trail going in might have lots of fallen logs crossings that you can't avoid going around... that'd influence me to lean more towards a taller, more serious type of offroad ride. As oppose to the more svelte and easier to sit on and ride lower, less powerful bikes.

Also there's things to consider like your body weight and level of aggressivenes while riding... considered in the context of the lesser trail bikes, because sometimes, for example, they might have fork tubes that are lesser in diameter and potentially could be prone to fork flex when pushed with too much weight, especially with a 200+ Lbs rider on top.

Before anything though... very first thing you should be doing is setting up suspension sag for your weight (with all your hunting gear on, minus pack). It is a NIGHT and DAY difference the handling you'll get from the same machine... when you try to ride it without dailing-in the suspension for your weight/aggressiveness. It'll handle _HORRIBLY_ if you don't take the time to set up sag and spend some time riding over things like some whoops and checking out how she handles decelerating over braking bumps. And learn how to adjust your clickers both front and back, to further dial-in the ride for you, specifically! Motos are much like guns in that respect, you need to dial them in for you specifically!

If you're in the 200+Lbs club... with a Trail bike or DualSport, chances are higher than you'd think that you should opt for a stiffer aftermarket spring in the rear. Sometimes you can "Meh" kinda sorta get sag set "decent" by tightening up the preload adjuster on your rear shock. BUT... this comes with the cost of making that rear suspension less supple and more "pogo-y" in the rear.. over smaller bumps. An example would be like braking bumps in front of a corner. The rear-end might get a little more "busy" waggling it's tail a lil side-to-side as it gets unloaded during the braking. So something to beware of.

If you get a bike with a keyed ignition (such as on dualsports), definitely make sure you have a schematic of the ignition switch. So that way if you crash out there and the ignition switch takes a hit to it... you can at least find the wires, strip 'em and make the connections to be able to start it back up and get back home!
 

KHNC

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Really just depends on what you are doing. At your size I see no reason to not have a 450. Just get one suited to the style of riding you do. I am rather inseam challenged so shorter bikes are easier for me. Though I have raced 80s, 125s, a 250 and a 480.
You old as hell!!!! Just like me! :) I got a bike again last year after 20 years off from racing. Now , i have two ,lol.
Yamaha YZ250F and KTM 150SX 2 stroke. I missed having an agile 2 stroke. Built a .6 mile MX track in my backyard. No racing , but i love to ride MX still. Built a 68' Freestyle tabletop jump single in the side yard last week. I would never take more than a 250 4 stroke on the trails.
 
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TheGDog

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Also I’m 6’8” 270 so a little bigger frame bike wouldn’t hurt my feelings
OH.. dude... at THAT size? Yeah.. bigbore for you.. no question! Just maybe look into using mousse inner tubes (they don't use air, so no flats to worry about) and possibly see if you'd like a Rekkluse clutch perhaps?

Dang... for you? Let's say like a MuleDeer.... debone... maybe a 125-130lbs pack weight coming outta there?

So 270+130 = 400, so that's like riding with two people on board... only one of them is on your back! So yeah, much easier to ride two-up weight on bigbores.
 

prm

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You old as hell!!!! Just like me! :) I got a bike again last year after 20 years off from racing. Now , i have two ,lol.
Yamaha YZ250F and KTM 150SX 2 stroke. I missed having an agile 2 stroke. Built a .6 mile MX track in my backyard. No racing , but i love to ride MX still. Built a 68' Freestyle tabletop jump single in the side yard last week. I would never take more than a 250 4 stroke on the trails.
Grumpy old man I am! I currently have an R6 for days but looking to sell and get KTM 350 SXF or Husky FC350. Lots of good vet racing around here so I’d like to give it a try. Been a few years, cough decades, since I took a gate drop. I would love to have a small track at the house.
!
 

Wrench

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I don't want to listen to a 450. I want an air cooled bike. I've been in stuff so thick that it took my chain off.....I sure don't want to figure out how to fix a radiator or hose.

I have a bunch of bikes, I sold my tw because it rides like a horse vs a motorcycle. I keep my xt225 as my hunting machine. It has good range, sits low enough to work with heavy loads and enough power for anything. The suspension sucks for jumps, but is great at sub 25mph square edged hits......and they can be had for $1500.
 

TheGDog

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I've been in stuff so thick that it took my chain off.....

Huh? I'm confused. Does your particular bike model NOT... have a chain guide on the swingarm mounted just in front of the rear sprocket? Cause if it does have one.. then the only way you'd have that happen, it pitching a chain? Would be if it was HORRIBLY loose with too much freeplay and slack in the chain. Or you snapped a link.
 

jimh406

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As large as you are, I'd go for a Honda 650. They have great aftermarket support, good suspension, electric start, and are tall.
 
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