Forks upgrade
ade555
Posts: 216
I will be looking to upgrade my front shocks but most likely will be from 2nd hand market , not sure what to look out for, main thing when I was looking around is steerer length I need 230mm in (1 1/8), could go for about 20mm if I remove the spacer but don't think I would be comfortable been any lower on front end, looking around
Rockshox Recon or Reba???
What else would be good in replacement of my Tora
Rockshox Recon or Reba???
What else would be good in replacement of my Tora
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Comments
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Reba are better than Recon, but condition is most important, and first you have to find some the right size etc.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
how about SR suntour Epicon, found one that looks like very good condition and will just fit, will have to remove the spacers that I have fitted, also could I get higher raised stem to compensate for the spacers? is very hard trying to find 2nd hand fork with 230 steerer
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Epicon are good, similar to a Reba, the easiest way to compensate for the loss of the spacer is with riser bars (assuming your current ones are flat!).Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.0
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Epicon are good, similar to a Reba, the easiest way to compensate for the loss of the spacer is with riser bars (assuming your current ones are flat!).
My bars have raise of 22mm, just been checking again my spacers ect. and it looks like I have total of 17mm in spacers 10mm x1 5mm x1 and 2mm x1, the new steerer will be 217mm and my current one is 230 so looks like I will remove just 12mm in spacers.
What is like trying to get spares for the epicon forks? like seals ect.0 -
Try the bars lower. Most people run their bars too high and loose a lot of front tyre grip because of it.Transition Patrol - viewtopic.php?f=10017&t=130702350
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Well I have been looking around for set of forks but nothing showing up with steerer around the 210 mm mark, anyone know what would be min I would get away with if the bike HT tube is 165mm.0
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Check out the stack height of a few headsets and see.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
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Well I have been looking around for set of forks but nothing showing up with steerer around the 210 mm mark, anyone know what would be min I would get away with if the bike HT tube is 165mm.
I threw all the spacers off and got a lower stem on, which required 30 mm of tube sticking out, so if you do similar, circa 195 mm, but find your stem first.You may even be able to go lower ?0 -
Well I have been looking around for set of forks but nothing showing up with steerer around the 210 mm mark, anyone know what would be min I would get away with if the bike HT tube is 165mm.
I threw all the spacers off and got a lower stem on, which required 30 mm of tube sticking out, so if you do similar, circa 195 mm, but find your stem first.You may even be able to go lower ?
You forgot the stack height of the headset.
As we have no idea what bike - equally no idea whether conventional or not. But if it's fitted with Tora one could assume.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
Well I have been looking around for set of forks but nothing showing up with steerer around the 210 mm mark, anyone know what would be min I would get away with if the bike HT tube is 165mm.
I threw all the spacers off and got a lower stem on, which required 30 mm of tube sticking out, so if you do similar, circa 195 mm, but find your stem first.You may even be able to go lower ?
You forgot the stack height of the headset.
As we have no idea what bike - equally no idea whether conventional or not. But if it's fitted with Tora one could assume.
Have I ? Oh . So what have I miscalculated ?
I I had 200 mm steered on a carara and bought a set of forks that were only 165 so minus 35 mm. I put them on the bike without the spacers, but with the bearing cap and measured what length of tube protruded about 30 mm. the stem required 40 mm to safety secure it in both pinch bolts, so I purchased a stem that was 10 mm lower and it fitted just fine
The OP would be best advised to do it the other way round, Ie get the lowest stem he can source, assemble using his original forks minus spacers and what ever sticks out of the top of the stem can be safely deducted from his original steerer Lengh ? Or he could just calculated it0 -
Your ramblings are not the easiest to decipher, but so what?
Head tube length is 165mm, add in the size of the external headset cups (say 10mm each?) plus 30mm for a stem and you are up to 215mm with no spacers.
As the stem needs to be below the top of the stem, say 210mm on a good day.
As I said:You forgot the stack height of the headset.
As we have no idea what bike - equally no idea whether conventional or not. But if it's fitted with Tora one could assume.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
Your ramblings are not the easiest to decipher, but so what?
Head tube length is 165mm, add in the size of the external headset cups (say 10mm each?) plus 30mm for a stem and you are up to 215mm with no spacers.
As the stem needs to be below the top of the stem, say 210mm on a good day.
As I said:You forgot the stack height of the headset.
As we have no idea what bike - equally no idea whether conventional or not. But if it's fitted with Tora one could assume.
My Mathematics appears to be better than yours ?
If he is at 230mm steerer now and removes 20 mm of spacers(210) and then a sources a stem that is say 15 mm lower, it appears to add up to 195 ? lets say 200 on a bad day ?
The key is how much lower a stem he can get and why I recommended finding that info first0 -
Your logic is inscrutable.
200mm would work, assuming a stack height of 20mm and a stem height of 15mm - good luck with that.
Can't get much simpler, or can you?I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
But with a thread of random measurements it's hard to be sure, or even vaguely unsure.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
Your logic is inscrutable.
200mm would work, assuming a stack height of 20mm and a stem height of 15mm - good luck with that.
Can't get much simpler, or can you?
I'm not assuming a stack height of 20mm. he stated the stack height as 20mm in the first post ! and its not a 15mm stem he requires, its one that is 15 mm or so lower than his current one
I don't mind being picked up if I am wrong, but at least read the thread before you do so0 -
NO the spacer is 20mm not the stack height, do you know what stack height actually is?Currently riding a Whyte T130C, X0 drivetrain, Magura Trail brakes converted to mixed wheel size (homebuilt wheels) with 140mm Fox 34 Rhythm and RP23 suspension. 12.2Kg.0
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Your logic is inscrutable.
200mm would work, assuming a stack height of 20mm and a stem height of 15mm - good luck with that.
Can't get much simpler, or can you?
I'm not assuming a stack height of 20mm. he stated the stack height as 20mm in the first post ! and its not a 15mm stem he requires, its one that is 15 mm or so lower than his current one
I don't mind being picked up if I am wrong, but at least read the thread before you do so
The stack height of the headset Einstein, not the stack of spacers. Do keep up.
So to make it simple - headtube length plus stack height (of headset) plus stem = a number.
So 165mm plus say 20mm plus say 40mm (if you're lucky) = 225mm.
Unless by headtube length the OP is including headset stack height (who knows?), in which case you're still up around 205mm - 220mm.
In which casecooldad wrote:But with a thread of random measurements it's hard to be sure, or even vaguely unsure.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
Your logic is inscrutable.
200mm would work, assuming a stack height of 20mm and a stem height of 15mm - good luck with that.
Can't get much simpler, or can you?
I'm not assuming a stack height of 20mm. he stated the stack height as 20mm in the first post ! and its not a 15mm stem he requires, its one that is 15 mm or so lower than his current one
I don't mind being picked up if I am wrong, but at least read the thread before you do so
The stack height of the headset Einstein, not the stack of spacers. Do keep up.
So to make it simple - headtube length plus stack height (of headset) plus stem = a number.
So 165mm plus say 20mm plus say 40mm (if you're lucky) = 225mm.
Unless by headtube length the OP is including headset stack height (who knows?), in which case you're still up around 205mm - 220mm.
In which casecooldad wrote:But with a thread of random measurements it's hard to be sure, or even vaguely unsure.
It doesn't matter if I used the wrong term, Your maths is incorrect.
original length 230 -20( spacer) - 15( reduction in stem) = 1950 -
Is it the height of the stack ?NO the spacer is 20mm not the stack height, do you know what stack height actually is?0 -
Your logic is inscrutable.
200mm would work, assuming a stack height of 20mm and a stem height of 15mm - good luck with that.
Can't get much simpler, or can you?
I'm not assuming a stack height of 20mm. he stated the stack height as 20mm in the first post ! and its not a 15mm stem he requires, its one that is 15 mm or so lower than his current one
I don't mind being picked up if I am wrong, but at least read the thread before you do so
The stack height of the headset Einstein, not the stack of spacers. Do keep up.
So to make it simple - headtube length plus stack height (of headset) plus stem = a number.
So 165mm plus say 20mm plus say 40mm (if you're lucky) = 225mm.
Unless by headtube length the OP is including headset stack height (who knows?), in which case you're still up around 205mm - 220mm.
In which casecooldad wrote:But with a thread of random measurements it's hard to be sure, or even vaguely unsure.
It doesn't matter if I used the wrong term, Your maths is incorrect.
original length 230 -20( spacer) - 15( reduction in stem) = 195
Well done. I expect a perpetual motion machine from you next.
But don't worry, you can just make random stuff up.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
A few seconds on Google would stop you looking like an idiot.
Is it the height of the stack ?NO the spacer is 20mm not the stack height, do you know what stack height actually is?
https://www.google.co.uk/search?q=stack+height&oq=stack+height&aqs=chrome..69i57j69i60j69i61&sourceid=chrome&es_sm=93&ie=UTF-8#safe=off&q=stack+height+headsetI don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
A few seconds on Google would stop you looking like an idiot.
Is it the height of the stack ?NO the spacer is 20mm not the stack height, do you know what stack height actually is?
https://www.google.co.uk/search?q=stack+height&oq=stack+height&aqs=chrome..69i57j69i60j69i61&sourceid=chrome&es_sm=93&ie=UTF-8#safe=off&q=stack+height+headset
I used the wrong term it makes no difference when calculating the reduction in steerer length in this case0 -
Not really. I prefer to take advice from people who at least seem to know what they're talking about, and you are simply assuming he can just find a stem 15mm thinner than the one you have no idea what size it is anyway.
Do it the right way round and you at least get a number you can use.
But until the OP returns with actual info, like do his measurements include stack height, and just how thick is that stem, it's all rather academic.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
Well this is the bike in link, if you zoom in on pic you can see the headset type, I just measured total stack length as is on bike now with out spacers and including HT I'm looking at 175mm, I think I got my numbers wrong when I provided you with HT only as I measured including the top an bottom cups, and with out them the HT is actually 155mm
http://www.evanscycles.com/products/kona/blast-2011-mountain-bike-ec0265000 -
also just to add the spacers are 17mm in total but I'm not worried about the spacers and current stem 40mm or there about with -/+ 1mm0
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So around 205mm including the stem. Doubt you can find one significantly smaller, if you can deduct from the total.
Allowing a few mm off to make space to adjust the topcap and a few mm back on for just in case, an absolute minimum of 205mm, and I'd want around 210mm for just in case. Slightly long is never a problem, too short is a disaster.
Depends on whether you can find a thinner stem, and want to change it.I don't do smileys.
There is no secret ingredient - Kung Fu Panda
London Calling on Facebook
Parktools0 -
thanks, still looks like it will be a mission to find one as still over 200mm mark,0
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Well this is the bike in link, if you zoom in on pic you can see the headset type, I just measured total stack length as is on bike now with out spacers and including HT I'm looking at 175mm, I think I got my numbers wrong when I provided you with HT only as I measured including the top an bottom cups, and with out them the HT is actually 155mm
http://www.evanscycles.com/products/kona/blast-2011-mountain-bike-ec026500
That looks like a Zero stack (zs44) headset with a ginormous amount of stack in that upper cone/cover (followed by two spacers on top if your bike matches the one in the linked pic). Could easily swap it out for a ZS44 headset with a flat top (shallower cone) instead.
Ok, those two aren't ZS44 headsets but they illustrate the difference in stack height you can get by changing the particular model of headset... Lets see if i can't find something more pertinent......
So yours is more like this Richey ZS44 headset (lot of stack before you even start adding spacers above it)...
And you could change it out for something with very little stack height, like this cane creek 40 series, or a Cane Creek 10 series...
It's even possible to forego getting a new upper headset and just swapping out that tall cone/cover with a shallower one (you can buy them individually if you look around).0 -
Not really. I prefer to take advice from people who at least seem to know what they're talking about, and you are simply assuming he can just find a stem 15mm thinner than the one you have no idea what size it is anyway.
Do it the right way round and you at least get a number you can use.
But until the OP returns with actual info, like do his measurements include stack height, and just how thick is that stem, it's all rather academic.
I wasn't attempting to give you advice ? But this is simple maths, it doesn't matter if the figures arise from a kitchen work top or a power station
But anyway a simple use of algebra gives that the stem is 40-45mm I know that 30mm stems are available as i have one. But the height of the stem isnt the defining factor. that being the height of the top most pinch bolt in the stem. but I did suggest he found his stem and then did his own calculation0
