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Old 12-29-06, 11:47 AM   #1
turbotroll
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Need a fork with a 1" Steerer - resurrection project

First Post.

I have an old Bridgestone MB-0 that i want to get on the dirt again.

It's the same frameset as a Ritchey P-21 but built by robots in Japan.

So it's old school, but it was a great bike. It's time for it to be a great bike again.

I had a Manitou 2 on it for a long time - but if gave up a few years back.
The fork needs to be light, 1" steerer (which will be the problem) and not much travel.
The bike came w/ a rigid fork so long travel forks will mess up the geometry by raising the front up too much.

Also need to dig up:
some magura pads (from the old yellow ones)
chain rings for a Mavic crank

Does anyone make a 1 1/8 to 1 conversion?

Thanks!
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Old 12-29-06, 12:11 PM   #2
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Quote:
Originally Posted by turbotroll
First Post.
Does anyone make a 1 1/8 to 1 conversion?
That'd be a neat trick. I could see a 1 1/8" frame necked down to a 1" steerer tube, but a 1" frame with a 1 1/8" steerer could be interesting. Take it to a machine shop and see if they can either press the fork into the frame and make it a "fixed steering" bike or mill the steerer down to 1". It would comprimise the strength, but maybe they could melt the shavings and drip them into the center of the steerer tube to make up for it,hehehe.


Sorry, but I had to.

Last edited by ed; 12-29-06 at 12:20 PM.
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Old 12-29-06, 12:22 PM   #3
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Here's one for $19:

I'm afraid that you will not find too much in the way of quality with a 1" tube.

$19.00 [buy]
Type: Forks
Color: Black
Size(s):
Suntour M3000 MTB Fork, Coil Spring, 40mm Travel, 1" Threaded Steerer 142mm long. A replacement suspension fork for the price of rigid. Perfect to get that old MTB back on the road, or to finish your budget build.

http://www.nycbikes.com/item.php?item_id=477
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Old 12-29-06, 12:24 PM   #4
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$9.00
[buy] RST Omni 700A MTB Suspension Fork

Category: Forks
Color: Silver
Size(s): 26", 1" steerer
RST Omni 700A 26" Suspension Fork, 142mm Threaded, Coil Spring, 40mm Travel. A replacement suspension fork for less than the price of rigid. Perfect to get that old MTB back on the road, or to finish your budget build.
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Old 12-29-06, 12:24 PM   #5
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What I meant

....
Maybe someone makes a steerer that's 1 1/8 at the bottom than is machined down to 1" to get into the frame.
Or a sleeve you press into the fork to make it 1".
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Old 12-29-06, 12:24 PM   #6
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http://www.amazon.com/Gila-T6-Suspen.../dp/B000FIDKSQ

http://www.amazon.com/Capa-T5-Suspen.../dp/B000FIFDO0
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Old 12-29-06, 12:55 PM   #7
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No good

those get terrible reviews....

but they do have the 1" steerer

I'd stick w/ the rigid if this was my only option....
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Old 12-29-06, 01:02 PM   #8
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Quote:
Originally Posted by turbotroll
I'd stick w/ the rigid if this was my only option....
stick with the rigid fork. keep the bike old school and build it up with some high end, period correct parts.. that would be sweet.
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Old 12-29-06, 02:39 PM   #9
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Nashbar's got a 1 inch suspension fork for sale for 100 bucks:

http://www.nashbar.com/profile.cfm?c...%20ATB%20Forks

But, it's 80mm travel, so I think it'll stick your bridgestone's front end way up in the air, and the bottom bracket, too.

Incidentally, I just bought one of those 19 dollar Suntour forks for my Bridgestone MB-6. It's going to replace a Softride suspension stem. So, maybe I'm not the best person to ask about suspension.
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Old 12-29-06, 02:52 PM   #10
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Look for a Marzocchi MX Comp, they came in 1inch 80mm for the past few years.
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Old 12-29-06, 04:36 PM   #11
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Quote:
Originally Posted by KrisA
Look for a Marzocchi MX Comp, they came in 1inch 80mm for the past few years.
Exactly what I was about to recommend.
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Old 12-29-06, 04:48 PM   #12
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I was going to recommend Marzocchi as well.

I have a Marzocchi "Bomber" Z3 on my old Bianchi, with a 1" steer tube. It's a good quality fork.
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Old 12-29-06, 04:49 PM   #13
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Another option if you want to shell out the cash is to go with one of the Pace suspension forks which can be ordered with a 1" steerer. They're so yummy.
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Old 12-29-06, 05:25 PM   #14
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Another request

I just did some measuring and a bit of figuring and...

The rigid fork is about 15 3/4 from the hub centerline to the bottom of the head tube.
I can go to about 17 inches and only throw off the head tube angle 0.6 degrees, that's from 71 to 70.6.
It's a small frame if the angles look odd to anyone.

Can someone throw a tape on their Marzocchi?

I actually had moved the stanchions on my Manitou up a bit before.

Thanks for the great input.

This is how "old school" it is....
Suntour XC pro derailleurs and shifters
Mavic crank, hubs and BB
carbon fiber bars from I don't know who
ringle AL water bottle cage - I don't even know if they make them anymore...
Magura hydraulic brakes
Old SPD's
Most everything else is Ritchey

Thanks again!!
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Old 12-29-06, 05:33 PM   #15
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Okay, just throwing this out there: How about getting a Softride suspension stem instead. Surprisingly, they still make 'em. Now that would be "old school".
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Old 12-29-06, 06:25 PM   #16
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..

OHHH Noooo....not the soft ride.

That Pace gear looks pretty cool but that pounds to USD conversion makes them a bit pricey.
They do have one that looks like it'll make the HT about 69.3 which isn't too bad.
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Old 12-29-06, 07:37 PM   #17
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I got an nice MAG 21 in nice shape that needs a home
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Old 12-29-06, 08:06 PM   #18
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turbotroll, I have the SR Suntour 3000 pictured above mounted to a Nishiki MTB that was originally a rigid fork. It's sturdy enough, but it is a low end, dual spring fork with no damper and not a lot of travel. On hard MTB trails I was able to make it bottom out. I didn't jump with it but I did use it to clear obstacles. I've attached a picture of the Nishiki with the fork. If you have any questions you can post here or PM me.
EDIT: I tried to go Rock Shox, but everything 1" was priced real high on ebay not to mention some were elastomers and their ability to still work was in question.
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Old 12-29-06, 08:06 PM   #19
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Keep it rigid.
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Old 12-29-06, 08:10 PM   #20
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Quote:
Originally Posted by roccobike
turbotroll, I have the SR Suntour 3000 pictured above mounted to a Nishiki MTB that was originally a rigid fork. It's sturdy enough, but it is a low end, dual spring fork with no damper and not a lot of travel. On hard MTB trails I was able to make it bottom out. I didn't jump with it but I did use it to clear obstacles. I've attached a picture of the Nishiki with the fork. If you have any questions you can post here or PM me.
EDIT: I tried to go Rock Shox, but everything 1" was priced real high on ebay not to mention some were elastomers and their ability to still work was in question.
Edit2: If nowheels has a good price on his fork, go for it.
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Old 12-29-06, 11:56 PM   #21
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I have a Judy XC, 1" Threaded (5.5" ST Length) If it fits and you're interested.
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Old 12-30-06, 09:14 AM   #22
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Sweet bike. I always wanted one of those back in the day.

My $0.02: If you really want a suspension fork, try to find a clean rock shox mag-21 off ebay. (I just sold one about a year ago that would have been perfect). I think I've still got the owner's manual, if you need it. I wouldn't want to go more than 63mm travel or it will mess up the geometry.

I would be inclined to keep it rigid and run the biggest volume tire I could fit between the stays. I'd also be tempted to turn it into either a complete single speed, or single speed front and 7 or 8-speed rear (whatever size hub you currently have). Have fun!

-Joe
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Old 12-30-06, 03:41 PM   #23
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Quote:
Originally Posted by JoeT
I would be inclined to keep it rigid and run the biggest volume tire I could fit between the stays. I'd also be tempted to turn it into either a complete single speed, or single speed front and 7 or 8-speed rear (whatever size hub you currently have). Have fun!
Agreed, although if it were me, I'd be inclined to rebuild it back to original spec just for authenticity's sake. The MB-Zip was a great bike. As for the fork, I'd be inclined to go find myself one of those beautiful Ritchey-designed biplane-crown forks that Bridgestone offered on the MB-1 and MB-2 for a while.

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Old 12-30-06, 04:30 PM   #24
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Quote:
Originally Posted by JoeT
Sweet bike. I always wanted one of those back in the day.

My $0.02: If you really want a suspension fork, try to find a clean rock shox mag-21 off ebay. (I just sold one about a year ago that would have been perfect). I think I've still got the owner's manual, if you need it. I wouldn't want to go more than 63mm travel or it will mess up the geometry.


-Joe
I have one of those in nice shape, but I did not think he took a shine to it?
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Old 12-31-06, 12:03 PM   #25
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Thanks for the input

Great input.

I'll be keeping it rigid for a bit until I know whether or not I'll be riding enough to throw a grand in parts at it.

Just new rims, tubes, tires, FW, chain, chain rings, cables and that's just what I know is worn out.

I need to know how long the Judy and Mag 21 are from hub center line to the race.
The pace 39 is 17.9" and that's about max. I mentioned my oe fork is 15.75ish.

Either of the guys with the forks can e-mail w/ that dimension.

It's funny that you read a review of the shocks and some love them and some hate them.
Looks like Zokes are better for replacement parts though. But there is always eBay.

Thanks for the offer for the manual. I can always scan it and e-mail to anyone that wants it if that works for you.

Thanks again!!
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