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Solid forks
 

Solid forks

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[#12762281]

Hello All

Looking for advice. I’ve got a giant roam 2 hybrid with front suspension. The forks them selves are abit cheap and not really needed anymore for what I use it for. How easy would it be to change them to a solid fork ? I don’t want to mess up the geometry or ride etc any help would be great

Thankyou.


 
Posted : 20/03/2023 9:15 pm
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You need the axle-to-crown measurement of the forks when you're sat on the bike.


 
Posted : 20/03/2023 9:25 pm
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At a guess, it your forks are 63mm travel 700c as google told me, the sagged a-c length, which is the length of rigid fork you'd want to look for, should be about 445-450mm

So could get some Exotic carbon or aluminium forks in that length, but they've not got mounts for guards

Or some M-part rigid forks


 
Posted : 20/03/2023 10:59 pm
slackboy reacted
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Easy if you can do basic maintenance jobs, only slightly complex bits will be removing and refitting the crown race, and possibly cutting steerer down to the right length. Plenty of guides on the web for how to do these.

And as Lego said, the correct name is rigid forks which will make googling easier


 
Posted : 21/03/2023 12:35 am
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Hello All

Yep 700c 63mm travel is correct not to bothered about about Gaurds long as it has disc brake mount.
Yeah I’m happy enough to swap them over. Will it affect the ride or should it be the similar just a rigid fork?

So 445-450mm is that front the axle to the crown measurement?


 
Posted : 21/03/2023 7:01 am
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Suspension forks are a bit pointless on hybrids IMO so yeah go rigid.


 
Posted : 21/03/2023 7:12 am
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Yeah if I’m honest I bought it thinking forks were a good idea and to be honest I made a mistake. The bike it’s self I really like the forks are abit cheap and so I thought I’d make it rigid and keep it.


 
Posted : 21/03/2023 7:41 am
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Looking for advice.
Step 1. Carefully read your warranty 😁


 
Posted : 21/03/2023 10:52 am
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Warranty’s not worth the paper it’s written on. I had the bike 4 months and the bottom bracket failed giant refused to replace it basically saying they couldn’t prove how I had used the bike and miles it had done but looking at the bike it was like new. If frame cracks then I’ll put the original forks back on but I can imagine they will find a way out of paying.


 
Posted : 21/03/2023 11:04 am
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I think Surly do some nice steel rigid forks, SJS Cycles used to sell them and they’re great for advice too.
M-Part, (Madison/Freewheel) do some nice ones too.


 
Posted : 21/03/2023 11:06 am
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Yes, 445-450mm is the axle to crown you need, I think

I came to that by considering that a typical 100mm travel 29er fork is 505 a-c, so a 63mm fork would be 468mm, and as yours is for 700c wheels, not full 29er wheels, it may be more like 460mm. Then minus 10-15mm of sag to get 445-450mm

Exotic do things like these:
https://www.carboncycles.cc/?s=0&c=43&p=959
https://www.carboncycles.cc/?s=0&c=92&p=788

Surly do these:
https://surlybikes.com/parts/ogre_fork
https://surlybikes.com/parts/ecr_fork

Triton Cycles will have something.

Best best is to scour ebay for some used 26" rigid, as there'll be something cheap. Or post a wanted ad here


 
Posted : 21/03/2023 11:17 am
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Typo? 26”?
29” = 700c


 
Posted : 21/03/2023 11:20 am
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I’ll measure the axle to crown just
To confirm this before I look about. Then 10-15 for sag is this just a rough guide for sag or is there a way to measure exactly.?


 
Posted : 21/03/2023 11:46 am
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@wheelsonfire1 not a typo, but I should have elaborated

I think the op needs a rigid fork that is the same length as a 100mm suspension corrected 26" fork, as their 29/700c fork is very short at 63mm travel

For sag, 20% is probably about right on a short travel fork like that, which would be about 12mm with your 63mm travel (hence my 10-15mm comment)

I'd suggested you don't have to worry about being more accurate than that. Realistically, a rigid fork anything from 440mm to 455mm a-c is probably going to feel about the same


 
Posted : 21/03/2023 12:16 pm
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Ah, I realise, a 26” suspension corrected fork, I thought you were recommending any 26” fork! Apologies for my misunderstanding.


 
Posted : 21/03/2023 1:01 pm
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@wheelsonfire, no worries, I should have been clearer 🙂


 
Posted : 21/03/2023 1:08 pm
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https://www.ebay.co.uk/itm/144015584636?mkcid=16&mkevt=1&mkrid=711-127632-2357-0&ssspo=rg4kvzmftas&sssrc=2349624&ssuid=ESG6nhdySqu&var=443303949577&widget_ver=artemis&media=COPY
So something like this might be suitable ? The axle to crown is 440mm on a 29” ?
Still learning a lot so bare with me.


 
Posted : 21/03/2023 2:06 pm
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Should be the right geometry -- I don't know anything about that brand, though


 
Posted : 21/03/2023 2:17 pm
 Olly
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Step 1. Carefully read your warranty

and then ignore it. Pfffft
Cant you get the roam with a rigid fork from the factory? itll be the same frame, so check the dimensions of that fork, and find something thats within 10 or 20mm +/-


 
Posted : 21/03/2023 2:32 pm
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Hmmm not seen a roam with a rigid fork. I don’t see why it shouldn’t work though.


 
Posted : 21/03/2023 4:18 pm
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So measured from crown to axle centre and got 480mm. Had a Google and found some info on the forks which would say my measurement is correct.


 
Posted : 21/03/2023 7:57 pm
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So measured from crown to axle centre and got 480mm.

Is that on your current forks? If so, don't forget all forks sag when you sit on the bike.

Then 10-15 for sag is this just a rough guide for sag or is there a way to measure exactly.?

Try sitting on the bike and getting someone else to measure the a2c length.

I've just used what ever rigid fork I've got that's closest to the manufacturer recommended size. I can't tell the difference between a few cm either side.


 
Posted : 21/03/2023 8:10 pm
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Hello

Yeah that my current fork measurement. I’ll sit on it let it sag and re measure again. Unfortunately I can’t find any info on the manufacturer fitting a solid fork but surly
It’s gotta be doable and perfectly fine.


 
Posted : 21/03/2023 8:40 pm
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Nobody has mentioned axle standards. I wouldn't have, either, if the ongoing confusion between 'solid' and 'rigid' forks hadn't cropped up in the course of the thread.


 
Posted : 21/03/2023 8:46 pm
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Well I’m very sorry “Montgomery” That my bike terminology does meet your standards. I Bet your a right laugh at a party.


 
Posted : 22/03/2023 6:12 am
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Is the existing axle/wheel boost width? If it is it'll limit your choice of rigid fork. If it's 100mm with bolt through axle there are loads of suitable gravel forks out there. If it's 110mm then something like the Sonder pathfinder might suit as it's corrected for 100m travel


 
Posted : 22/03/2023 6:58 am
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Pretty sure OP is needing a quick release fork

I didn't bring this up but the Exotic's I posted and the Airbike ones the OP posted are both QR


 
Posted : 22/03/2023 8:41 am
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Hello

Yeah sorry I forget to say I need a quick release not a bolt through.


 
Posted : 22/03/2023 8:50 am
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The airbike forks are the same as the Mosso forks found on ebay. they're lightish, fiuctional and work. They are very stiff though.

cheap though.

actually, correct that, mosso forks used to be about £40-50, i see they're £100+ now. cripes!


 
Posted : 22/03/2023 10:42 am
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I stuck some Exotic carbon forks onto my Inbred. A2C length was almost there, but a bit longer than the Reba forks that were on it. The reality is that after about 5mins riding it, I didn't really notice any difference.

It is possible to over-think these things.
You just need to make sure you are in the right ballpark with fork length, that the steerer type is correct (straight or tapered), axle standard is correct (QR in your case) and brake mount is compatible, although this can normally be resolved with adaptors.

Then you'll be fine. I think I paid about £110 for the Exotic forks but that was probably 5 years ago now, so they've probably gone up a bit.


 
Posted : 22/03/2023 12:57 pm
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I did this not long ago. with surly fork for all the mounts and fit and forget cromoly. Strong.
Only place I found had them in was Westbrook cycles. They have a massive choice of forks. I also had the bonus of more clearance for tyre too with Surly fork.


 
Posted : 22/03/2023 1:29 pm
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https://amzn.eu/d/7HMqJb x"> http://CarbonCycles eXotic Rigid Lightweight Alu XC MTB Bike Fork - 44.5cm Disc Specific, 26in Wheel https://amzn.eu/d/7HMqJbx

I bought this fork in 490mm variety to go on my 29er a couple of years back paid about the same. Can’t fault it. (At least it looks like it’s qr dropouts in the picture. Can check by cross referencing the model number with the carbon cycles website)


 
Posted : 22/03/2023 1:51 pm
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Actually that’s alu. Carbon seems to have gone up since I bought mine!

https://www.carboncycles.cc/?p=960&#top


 
Posted : 22/03/2023 1:56 pm