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Old 25-01-09, 12:09 PM   #21
hovis
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Default Re: fork work

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Originally Posted by skeetly View Post
fork work
yeah, somtimes i feel like that

working 3-10pm today

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Old 25-01-09, 12:36 PM   #22
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Default Re: fork work

Hagon have the advantage that you get good setup advice from them, too. TBH a spring's pretty much a spring, you don't need to worry about which is better, just which is the right strength for you. That means fidning the right spring rate, and deciding on linear vs progressive.

Ohlins fall down here because they don't offer a full range of springs, just a couple of weights (well, I think there are more available than most Ohlins resellers carry, but effectively their range is limited) Getting the right spring rate is important, getting the right brand is completely unimportant I used Ohlins, because I had an Ohlins shock and wanted the sticker on the forks too
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Old 25-01-09, 12:59 PM   #23
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Default Re: fork work

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Originally Posted by northwind View Post
Hagon have the advantage that you get good setup advice from them, too. TBH a spring's pretty much a spring, you don't need to worry about which is better, just which is the right strength for you. That means fidning the right spring rate, and deciding on linear vs progressive.

Ohlins fall down here because they don't offer a full range of springs, just a couple of weights (well, I think there are more available than most Ohlins resellers carry, but effectively their range is limited) Getting the right spring rate is important, getting the right brand is completely unimportant I used Ohlins, because I had an Ohlins shock and wanted the sticker on the forks too
and what is the advantage / disadvantage of progresive or linear spings
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Old 25-01-09, 01:06 PM   #24
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Default Re: fork work

That's largely taste- progressive are more, well, progressive The more you compress them the more they resist. Linear are... linear! It takes the same amount of force (well, in theory) to compress them by 1mm wherever you are in the working stroke.

In theory, progressive is better- you want soft travel in the initial movement for going over bumps, but if you hit a big bump then increasing resistance to stop you just blowing through your travel is good. (just like high and low speed compression damping in fact) But a lot of people say this doesn't work effectively in short forks. Me, I used linear and liked it, I rode an SV with progressive and it never felt quite right, the initial bump felt squishy then it felt too hard. It kind of felt like it was blowing through the initial travel too fast, then the remaining travel was having to do the work that the full travel would do normally. This could have been down to setup, a poorly chosen rate or rate rise maybe.

But, I'm sure that's personal taste. As far as I'm aware linear is the default option for almost all road-only bikes, while progressive comes up a lot more on longer travel off-road or on-and-offroad bikes. But that could be wrong.
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Old 25-01-09, 01:34 PM   #25
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Default Re: fork work

Also linear seems to be preferred for track use from what I can tell.
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Old 25-01-09, 01:37 PM   #26
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Default Re: fork work

Yes especially if you are fitting emulators or cartridges, as it's hard to set up for the damping, it'll either be solid at low compressions, or squishy at high compression. Almost the same bodge up as damper rod internals but with a different variable...
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Old 25-01-09, 01:48 PM   #27
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Default Re: fork work

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Originally Posted by maviczap View Post
I bought mine from Wemoto, but you don't get the free fork oil. So £67 is a good price I think.

I put in 15w oil, but this is too harsh for my 69kg (10st)
I've got 15w in both mine IIRC. I got 15 from wemoto when I bought the Hagon shock and prog springs. I'm just short of ten stone. Although I've not had a problem, I'd say its just a little on the harsh side.
In the other bike I've Ohlins linears. When I bought it, the guy had done a little mix of oil to make it into 12.5 and some spacers in there. He was around 13 stone. TBH that was perfect for me. I have had a fork oil change since and those spacers have been taken out( dunno what oil was put in think it were 10, at first it wasn't perfect as I didn't know the rear shock was on its way out. Its a whole different ball game now i've had the shock changed as well. I've still to take it on a long run, but just a short distance has seen an improvement.
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Old 25-01-09, 01:50 PM   #28
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Default Re: fork work

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Originally Posted by Tim in Belgium View Post
Also linear seems to be preferred for track use from what I can tell.
Yeap, and progressives for the road.
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Old 25-01-09, 01:51 PM   #29
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so any idea's then baring in mind i'm around 85kg kitted up think i want progressive spring's though.
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Old 25-01-09, 02:03 PM   #30
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Default Re: fork work

well when set up properly, having two bikes set up with both, I can't bloody tell the difference. Bearing in mind HX is pothole kingdom!!!
Suzy hasn't shaken my shoulders out of their sockets since she was set up with the hagons(even with 15) and now Dave has a new shock the front end has stop banging about. I'd say that the linears are ok too. From what I can remember from the last time Suze was on the road her handling was so smooth.
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