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-   -   Change to Rigid Front Fork? (https://www.bikeforums.net/commuting/871821-change-rigid-front-fork.html)

AusTexMurf 02-20-13 10:23 PM

Think this fork would suit your purpose.
http://www.modernbike.com/itemgroup.asp?IGPK=2126205560
or
treefort
http://www.treefortbikes.com/index.a...222368079___82


Troll Fork


http://surlybikes.com/uploads/parts/FK0099.jpg


The Troll fork is just like the one that comes on our new Troll frame, a 26" wheeled fully geared utility bruiser and cruiser. The Troll fork replaces 100mm travel suspension forks. Like all our forks, it’s constructed of CroMoly steel and sports rim brake pivots (removable) as well as a 51mm disc caliper mount. Unlike our other forks it’s designed to accept a rack while using a disc brake, via through-blade threaded mounts in two places on each fork blade. Fender eyelets too. Steerer is 1-1/8" threadless. Finish is black powdercoat.
Axle-To-Crown: 453mm
Rake: 40mm
Steerer: 260mm
Weight: 1.32kg (2.9lbs)


droy45 02-21-13 08:22 AM


Originally Posted by AusTexMurf (Post 15298552)
Think this fork would suit your purpose.
http://www.modernbike.com/itemgroup.asp?IGPK=2126205560
or
treefort
http://www.treefortbikes.com/index.a...222368079___82


Troll Fork


http://surlybikes.com/uploads/parts/FK0099.jpg


The Troll fork is just like the one that comes on our new Troll frame, a 26" wheeled fully geared utility bruiser and cruiser. The Troll fork replaces 100mm travel suspension forks. Like all our forks, it’s constructed of CroMoly steel and sports rim brake pivots (removable) as well as a 51mm disc caliper mount. Unlike our other forks it’s designed to accept a rack while using a disc brake, via through-blade threaded mounts in two places on each fork blade. Fender eyelets too. Steerer is 1-1/8" threadless. Finish is black powdercoat.
Axle-To-Crown: 453mm
Rake: 40mm
Steerer: 260mm
Weight: 1.32kg (2.9lbs)


I checked those out, the only thing is I couldn't find any with the 1in steer tube. I contacted them to see if they can even get them.

Edit: So do you know if the LHT fork is suspension corrected? The Troll is I believe.

AusTexMurf 02-21-13 09:10 AM

Wow.....one inch steerer tube with a 100mm travel suspension fork......haven't seen one of those, myself.
Does make your search more problematic. What suspension fork with 1" steerer tube and 100mm of travel did the bike originally come set up with ?
And no....don't think the troll fork comes in a 1 inch steerer.
You might try checking into Velo Orange solutions. Sometimes they provide weird work arounds.

And no, the LHT fork is not suspension corrected because most touring/heavy duty commuting bikes are not designed w/ front suspension. The ones that do are usually designed very efficiently and not with traditional suspenion forks. For example, my wife has a fully loaded cross country touring bike from cannondale, but it uses a low travel, energy efficient Headshock system to absorb some of the feedback, not provide true suspension. Great system but not applicable to your situation.

If you are sure that you need a steel fork with a 1 inch steerer tube w/ eyelets for fenders, racks, etc for a 26 inch wheel, I can pick one up for you for dirt cheap from the YellowBikeProject, our local coop. I could also get it shipped to you. However, it will not be suspension corrected and this will affect your geometry significantly, therefore your handling. Don't know if it is possible, but can you sneak at least 60 mm of spacers under your head tube somehow ? Never tried it........ or thought about it.....might be ugly as well.

Check fork offerings from Soma and Velo Orange.......

Alternately, just pick up any old steel mtn bike frame that fits you off of Craigslist and build it up around a quality wheel set, drivetrain, forks, tires, and saddle.

droy45 02-21-13 09:30 AM


Originally Posted by AusTexMurf (Post 15299589)
Wow.....one inch steerer tube with a 100mm travel suspension fork......haven't seen one of those, myself.
Does make your search more problematic. What suspension fork with 1" steerer tube and 100mm of travel did the bike originally come set up with ?
And no....don't think the troll fork comes in a 1 inch steerer.
You might try checking into Velo Orange solutions. Sometimes they provide weird work arounds.

And no, the LHT fork is not suspension corrected because most touring/heavy duty commuting bikes are not designed w/ front suspension. The ones that do are usually designed very efficiently and not with traditional suspenion forks. For example, my wife has a fully loaded cross country touring bike from cannondale, but it uses a low travel, energy efficient Headshock system to absorb some of the feedback, not provide true suspension. Great system but not applicable to your situation.

If you are sure that you need a steel fork with a 1 inch steerer tube w/ eyelets for fenders, racks, etc for a 26 inch wheel, I can pick one up for you for dirt cheap from the YellowBikeProject, our local coop. I could also get it shipped to you. However, it will not be suspension corrected and this will affect your geometry significantly, therefore your handling. Don't know if it is possible, but can you sneak at least 60 mm of spacers under your head tube somehow ? Never tried it........ or thought about it.....might be ugly as well.

Check fork offerings from Soma and Velo Orange.......

Alternately, just pick up any old steel mtn bike frame that fits you off of Craigslist and build it up around a quality wheel set, drivetrain, forks, tires, and saddle.

Well, I built up this nice 7005 super lightweight frame with mostly all nice components except for the fork which is what I had in my parts bin. It worked out fine to this point but I had this brain cramp that was telling me to swap out that old heavy suspension fork that never really sees any rough duty for a lightweight rigid one. I have reducer collars in my headtube to reduce for this 1in fork that could be removed and then I would have to get a new headset, new stem, and the suspension corrected fork. That Surly Troll looks like it would fit the bill for this project if I decide to go ahead and replace all those items. My frame was designed for something around 100mm of travel so I don't know what the LHT would do for the handling. This has been very informative for me, thank you very much.

AusTexMurf 02-21-13 09:40 AM

Now I got you. Cool.

My advice.
Do you know anyone w/ a dealers license to order parts from QBP ? Seattle Bike Supply ?
Or you could find what you need on craigslist or your local bike coop. Do you have access to Frankenbike ?

You're exactly right, you need a new headset, stem, and suspension corrected fork for your conversion.
If you can find high quality, cheaper used or repurposed parts from a bike swap, go for it.
If not:
Order the headset, stem, and bars, all Origin8. Best quality for the best value. Ergon grips. Surly Troll fork. You will be happy.
Get a mechanic or LBS to order them, cut your steerer tube, and set your star nut, if you have never done this before. Pretty easy to make that happen.
Run Schwalbe Big Apples, Big Bens, or Marathon Supremes for the nicest, cushiest ride.

You could also sort of do this Frankenbike style w/ quality used parts, as I noted.

Best of luck.

droy45 02-21-13 10:43 AM


Originally Posted by AusTexMurf (Post 15299688)
Now I got you. Cool.

My advice.
Do you know anyone w/ a dealers license to order parts from QBP ? Seattle Bike Supply ?
Or you could find what you need on craigslist or your local bike coop. Do you have access to Frankenbike ?

You're exactly right, you need a new headset, stem, and suspension corrected fork for your conversion.
If you can find high quality, cheaper used or repurposed parts from a bike swap, go for it.
If not:
Order the headset, stem, and bars, all Origin8. Best quality for the best value. Ergon grips. Surly Troll fork. You will be happy.
Get a mechanic or LBS to order them and set your star nut, if you have never done this before. Pretty easy to make that happen.
Run Schwalbe Big Apples, Big Bens, or Marathon Supremes for the nicest, cushiest ride.

You could also sort of do this Frankenbike style w/ quality used parts, as I noted.

Best of luck.

Cool, thanks again.

fietsbob 02-21-13 11:37 AM

Ah the 1" steerer , suspendion fork problem , again.. frame headtube is smaller too, I guess..

non suspension corrected forks from before sus forks, steepen the steering angle..
as the axle to fork crown race seat is less..

droy45 02-21-13 11:46 AM


Originally Posted by fietsbob (Post 15300173)
Ah the 1" steerer , suspendion fork problem , again.. frame headtube is smaller too, I guess..

non suspension corrected forks from before sus forks, steepen the steering angle..
as the axle to fork crown race seat is less..

You mention "again". Does this happen often? My frame headtube has reducers that can be removed. I just happen to prefer the threaded tube that takes a quill stem.

fietsbob 02-21-13 12:04 PM

new, previously unsaid, details.. have you considered getting a custom fork made?

the duplex handle bar kit Harris has ( rohloff demo bike) fit a quill stem in the top of a threadless fork.

you have to deal with the threadless headset separately, adjust and clamp that adjustment as a stem would,
around the steering tube..

Quill needs to be The 1" , rather than 7/8" .. it possible, but definately swimming against the current.

droy45 02-21-13 12:22 PM


Originally Posted by fietsbob (Post 15300300)
new, previously unsaid, details.. have you considered getting a custom fork made?

the duplex handle bar kit Harris has ( rohloff demo bike) fit a quill stem in the top of a threadless fork.

you have to deal with the threadless headset separately, adjust and clamp that adjustment as a stem would,
around the steering tube..

Quill needs to be The 1" , rather than 7/8" .. it possible, but definately swimming against the current.

Yup, I believe I have to change out stem and headset and go ahead with 1 1/8 to gain the use of a new generation suspension compensated fork. I would do that before getting a custom made one. I wasn't concerned with cost or anything, just wanted the easiest way to get rid of the old worn out heavy fork and retain the use of existing good components.

fietsbob 02-21-13 02:17 PM

there are some nice looking almost quill like stems, but still are for threadless systems, they fit over the outside.


http://store.velo-orange.com/index.p...31-8-rise.html

droy45 02-25-13 07:05 AM

I ordered the Surly Troll, new headset and stem. I believe it will be well worth doing for this frame. It's been my main commuter and touring bike so thank you all for your valuable input and the links I needed to locate the proper fork. I will post a little later on when the project is completed.

AusTexMurf 02-25-13 08:57 AM


Originally Posted by droy45 (Post 15313940)
I ordered the Surly Troll, new headset and stem. I believe it will be well worth doing for this frame. It's been my main commuter and touring bike so thank you all for your valuable input and the links I needed to locate the proper fork. I will post a little later on when the project is completed.

Right on. Let us know how it turns out.
Also, in order to fully appreciate your rigid fork setup, I would highly recommend a new set of cushy, puncture resistant tires.
Schwalbe Marathon Supremes, 2.0's or Schwalbe Big Apples or Big Bens in 2.15's.
Good luck.

droy45 02-25-13 09:14 AM


Originally Posted by AusTexMurf (Post 15314212)
Right on. Let us know how it turns out.
Also, in order to fully appreciate your rigid fork setup, I would highly recommend a new set of cushy, puncture resistant tires.
Schwalbe Marathon Supremes, 2.0's or Schwalbe Big Apples or Big Bens in 2.15's.
Good luck.

I have been running 1.5 slicks in the summer and of course in the winter I have no choice but to put the Nokian W106 studded. I ride mostly on good paved roads but also (some) rough roads and gravel trails. Do you think those Marathon Supremes would be slow as compared to the slicks I have been using? I am concerned with rolling resistance that's why I ask. When I swap out to the Nokians, I feel the pain every year until I get used to them. It takes a few days.

AusTexMurf 02-25-13 09:31 AM

I thought I might resent the big balloon tires at first, too. Now, there is no way I would part with them. Smooth as butter, pretty darn flat resistant, and quite fast when up to speed. If I were buying new tires today, I would try the Big Bens. Everyone also loves the Supremes and they are the preferred tire for all of our urban bike police here in austin. The supremes are much faster and smoother rolling than the Marathon Plus. However, the old school Marathon Plus are possible more flat resistant than the other 3 that I mentioned. They are great but the Marathon Plus can roll for 6000+ miles, according to some w/ no flats. Ride is harsher and slower, though.

The other idea is to just wear out your current tires (what I do) and then replace. Just ride more.

But, if you want it to feel like a completely new setup and don't mind dropping the $, get the Schwalbes.
You won't regret it.
My $0.02.

droy45 02-25-13 09:50 AM


Originally Posted by AusTexMurf (Post 15314323)
I thought I might resent the big balloon tires at first, too. Now, there is no way I would part with them. Smooth as butter, pretty darn flat resistant, and quite fast when up to speed. If I were buying new tires today, I would try the Big Bens. Everyone also loves the Supremes and they are the preferred tire for all of our urban bike police here in austin. The supremes are much faster and smoother rolling than the Marathon Plus. However, the old school Marathon Plus are possible more flat resistant than the other 3 that I mentioned. They are great but the Marathon Plus can roll for 6000+ miles, according to some w/ no flats. Ride is harsher and slower, though.

The other idea is to just wear out your current tires (what I do) and then replace. Just ride more.

But, if you want it to feel like a completely new setup and don't mind dropping the $, get the Schwalbes.
You won't regret it.
My $0.02.

Nice, I will ride more, wear mine out then I think I will look into the supremes. Thanks.


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