Posts
550
Joined
7/16/2019
Location
Chattanooga, TN
US
Edited Date/Time
6/1/2024 7:21pm
I wonder why nobody handed him a note telling him the KTM frame is more ridged than all other brands. How the hell did they let him go on and on incorrectly. For 2 years all anybody has talked about is their frames being too ridged. What’s he smoking?
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They're not on the same frame from 2 years ago. How do you know he's wrong?
Ktm back off the motor mount torque 2 nM and that's why he won
Hahahahaha. I'll be the first to admit I haven't followed the flex debate but I've always been under the impression the steel framed KTM chassis had a little more flex than aluminum Jap chassis.
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they are talking flex in comparison to aluminum frames… not that ktm changed the frame in 2022 to alter the flex characteristics around the shock tower.
The OP doesnt metallurgy...
I'm sure someone will be along to correct me, but it's probably the flex curve that's different. High frequency vs low frequency inputs, static vs dynamic. Damping of the material. Frame vs fork flex. I think there's more to it than just one is flexier than the other
Ridged, yeah, right.
Like the guy in The bold and the beautiful. He's pretty ridged too.
More seriously, I'm just not sure James follows the MX inside tech news, and even less the KTM frame saga, at all.
Whatever it is I am sure Chase has no complaints at all.
Mark from REP said the 2023 frame was too flexible on pulpmx a few weeks ago. The Honda has a really flexible frame too but everyone says it is harsh. The team has been running their frames with plates welded on for years.
I can guarantee he is not. Sometimes his bike analysis seems sound some times it seems like he is talking out his ass.
Exactly this.
Motogp, but
https://youtu.be/NXKBk8QMVGg?si=TIHQzspfykT_PXIl
Be cool if Kawasaki did one of their Science of Motocross on whats happening
I always thought it was stiffer than the previous gen but not the Japanese bikes (except Honda maybe). Aluminum flexing a lot is kinda sketchy because of its fatigue limit but they make it work I guess.
Oh wait, they did couple years old but...
Like to see the difference in all makes chassis flex
There is two kinds of flex on a chassis, torsional, or lateral, and vertical. Bikes can be harsh one way, and stiff the other. I think James was talking about torsional, that would cause the bike to twist and go side to side.
Pit Row
Anyone on this site that says there frame is to stiff is full of shit.
Call in the engineers to confuse us even more….I appreciate JS7”s input but was he ever known to be a good test rider/ bike setup guy?
James is the best thing that has happened to the broadcast. He’s raw Af and him and weege own the booth.
also think is the way the frame flexes that he’s referring to
Obviously you have never ridden a first gen Honda aluminum frame.............
I used to own a skateboard manufacturing company. People have been chasing better materials for eternity. But sometimes the best thing is already invented. Thats kind of how I feel about aluminum chassis'.
Fiberglass skateboards were a thing...
Aluminum skateboards were a thing...
Carbon fiber skateboards were a thing...
But who would have guessed that ALL the pros still rock a plain ol'wooden Canadian Hard Rock maple deck?
The difference is the flex and natural snap that comes from the directional grains in wood. Carbon, composite and Aluminum all act nothing like a fresh "crispy" wood layup. To say that one material is better because it is more expensive or has superior qualities is rubbish.
My worthless $0.02
It's not really flex per sé...its more about the difference of how aluminum and steel "rebound" and respond to the flexing of the chassis. Like a harmonic balance kinda thing.
Aluminum rebounds faster than steel and that's why steel feels softer in my opinion
And is also confused by ridged vs rigid.
What the hell does James Stewrat know about motorcross bikes? Wasn't his number #259? Anyone with a number that high is bound to be a squid.
Right 259 is even higher than Trevor Pastrami's number
Maybe this is a big misunderstanding and we are just talking toolboxes or truck bed boxes?
Well based on the metallurgy he’s right lol. The aluminum frames are “stiffer” bc of the geometry, not material properties
Perhaps he’s snuck in a few laps on his brothers Husky and knows exactly what he’s talking about.
Post a reply to: James - WTF, KTM Frame Flex