Straight vs curved forks

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Christopher

Über Member
i went from straight steel forks to curved carbon ones on the same bike and it got a lot less painful riding on rough roads. I do not know if your straight Eastons would transmit more road shock than the curved ones, but worth bearing in mind.
 

Fab Foodie

hanging-on in quiet desperation ...
Location
Kirton, Devon.
theclaud said:
I'm not sure I grasp that. Surely the angle and distance between steerer and axle is the same on both models, like what Foodie and Tim said? But if you're right I'm concerned - I use a short stem and don't need any more twitchiness...

No forks for the road are truly straight, i.e in-line with the steerer tube. Straight forks are angled away (forward) from the angle of the steerer-tube just below the lower bearing so that the axle will be placed at the same relative position as a curved fork assuming that both forks have the same offset and most are pretty damn similar for a road-bike. Touring forks would differ being angled away more from the line of the steerer tube... Oh for a pen and paper!

Snapper 'may' have something about the curve being shock absorbing, but it could also do with just a different manufacture.
My TCR has straight forks, they work and look just fine!
 
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theclaud

theclaud

Openly Marxist
Location
Swansea
Fab Foodie said:
No forks for the road are truly straight, i.e in-line with the steerer tube. Straight forks are angled away (forward) from the angle of the steerer-tube just below the lower bearing so that the axle will be placed at the same relative position as a curved fork assuming that both forks have the same offset and most are pretty damn similar for a road-bike. Touring forks would differ being angled away more from the line of the steerer tube... Oh for a pen and paper!

Snapper 'may' have something about the curve being shock absorbing, but it could also do with just a different manufacture.
My TCR has straight forks, they work and look just fine!

That's not Snapper - that's Frustruck. They have similar doggies. Anyway, thanks for all your advice - I've just bought the straight ones! Which is just as well, because if I were to waste any more work time staring at forks on Ebay, the next payday could be my last.
 

02GF74

Über Member
Fab Foodie said:
Snapper 'may' have something about the curve being shock absorbing, but it could also do with just a different manufacture.

Yeah, that is what I have read too. A straight fork has to tranmist the up/down forces at the axle up the fork legs but a curver legs can offer some flex.

think of an extremely curved fork, semi circle as in pic (will add this). you can see there will be a part that will move up and down absorbing road shocks.

the straight fork will be thinner at the end so it can flex a bit.

sorry, can't descrbie it any better than that.
 

BigSteev

Senior Member
How curvy?
2006_09_27_villak_onda.jpg
 

Fab Foodie

hanging-on in quiet desperation ...
Location
Kirton, Devon.
theclaud said:
That's not Snapper - that's Frustruck. They have similar doggies. Anyway, thanks for all your advice - I've just bought the straight ones! Which is just as well, because if I were to waste any more work time staring at forks on Ebay, the next payday could be my last.


Opps

Apols Frustruck!
 
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