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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 12-14-09, 11:26 AM   #1
ichitz
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I scored a 3rensho! need advice.

EDIT: update on bottom of page 4

Hey guys and gals!
I very recently got my hands on a 3rensho frame off ebay.. sort of like a christmas gift to myself (it's really just an excuse for wanting this frame so badly). I'm looking for some advises for the fork and wheelset.





According to Affinity Cycles (who sold it on ebay), the guy who previously owned it trashed the fork, that's why it didn't come with the frame. The head tube was reamed by Mr. Tanabe of Kalavinka to take ISO instead of JIS. What kind of forks would you guys suggest? I prefer something classic, steel and lugged over an aero fork, but i'm open to all your suggestions.

EDIT: I'm gonna run front brakes, so a fork that is drilled for brakes plz.

Last edited by ichitz; 03-16-10 at 10:53 AM. Reason: updates
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Old 12-14-09, 11:34 AM   #2
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So you're the guy who bought that one huh? I wasn't sure if it would've sold w/o a fork.

The JIS to ISO just means they took down the fork crown race and the ID of the headtube to accept the 26.4mm crown race over the 27. I had to do this to my Panasonic to fit the King headset. You'll need to buy a 26.4 race from King for any fork you decide to go with and make sure the fork is also at 26.4.

If I had that frame, I'd probably get a 1" threaded woundup.

OH, as far as wheels, I'd do something all black.

EDIT: Forgot to ask, what are you going to do for a seat binder bolt?

Last edited by Yo!; 12-14-09 at 11:42 AM.
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Old 12-14-09, 11:55 AM   #3
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I would check the frame for integrity since this was crashed before.
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Old 12-14-09, 12:02 PM   #4
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haha. Yep! I'm the 'gal' that bought that off ebay. I had a feeling someone would recognize the frame when I posted it

It came with a chris king headset. It's just sitting in my box of stuff now. The wound up looks nice. A little on the pricey side for me right now.

I was thinking of the Torelli Bormio Pista wheels.. I really like products from Torelli. It's just I wanted to see what else was out there.

hmm.. seat binder bolt. Haven't given much thought to it. I thought I'ld just see what the stores have. That or I might just take the bolt from my peugeot for the moment.
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Old 12-14-09, 12:17 PM   #5
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That's really awesome. Personally I'd go for a carbon fork and some Open Pros on low-flange track hubs, but I'm sort of weird like that.
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Old 12-14-09, 12:42 PM   #6
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spicer chrome fork.
black open pros to dura ace
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Old 12-14-09, 01:03 PM   #7
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ADSR: Affinity did put a carbon fork on it in the store just for display purposes. It did look sick. I forgot what fork it was but it was real nice. Except I don't think it's really for me.

bionnaki: The spicer looks nice. Any personal experiences with it? Originally I wanted the Torelli pista fork, except it's close to $400. If I get it, I probably wouldn't be able to ride my 3rensho for another 3 months. That would be sad and painful
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Old 12-14-09, 01:04 PM   #8
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Easton EC90 SL straight blade.
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Old 12-14-09, 01:18 PM   #9
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Quote:
Originally Posted by Yo! View Post
EDIT: Forgot to ask, what are you going to do for a seat binder bolt?
Shouldn't be that hard. Actually, I think that i have the right seat binder down in my shop. PM me if you're interested.
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Old 12-14-09, 01:26 PM   #10
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Some seat binder bolts for Kierin frames are near impossible to procure.

EDIT: NM, Retro to the rescue
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Old 12-14-09, 01:32 PM   #11
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awesome! Lemme go home and measure and get back to u, retro!
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Old 12-14-09, 01:36 PM   #12
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What rake did the original fork have? I'm guessing you won't want a road fork for this....
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Old 12-14-09, 01:42 PM   #13
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even if you can't get the proper seat post binder bolt right away, you could just jerry-rig something from home depot to work in the mean time until you find the proper thing.
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Old 12-14-09, 02:02 PM   #14
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Just find a matching 3rensho chromed (since yellow's a tad hard to come by), and stay with that if you want classic. I wouldn't stick anything carbon on it to violate that "classic" feel. An aero bladed fork would look nice as well, just find a chromed one.

As for wheel set, if you want super classic, you could go suntour superbes to arraya's, or you could just go dura ace to mavic open pro's. Just don't stick veep's on them. =\

Oh yea, if you want carbon, Kinesis has an classic feel to it.
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Old 12-14-09, 02:06 PM   #15
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Quote:
Originally Posted by filtersweep View Post
What rake did the original fork have? I'm guessing you won't want a road fork for this....
I have no idea what the original fork rake is.
BUT. I found this in the BF archive:

Yoshi Konno/3Rensho were the innovators(to the best of my knowledge) of an offset investment cast fork crown design that moved the fork blades into a plane in front of the center line of the steerer tube. This allowed the forks to be made with a shorter fork rake while achieving the same trail configuration as normal crown/longer fork rake design. In theory, this was done to produce a stiffer overall ride.
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Old 12-14-09, 02:10 PM   #16
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Just find a matching 3rensho chromed (since yellow's a tad hard to come by), and stay with that if you want classic. I wouldn't stick anything carbon on it to violate that "classic" feel. An aero bladed fork would look nice as well, just find a chromed one.
This is why I won't buy NJS frames w out a fork, but to expand a bit further past aesthetics, NJS frames have that famous nervous geometry, and that's part of what you pay for. Unless I have a build sheet with AtoC and rake measurements, I don't want to even mess with putting a new fork on an NJS frame and risk compromising the designed geometry.
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Old 12-14-09, 02:26 PM   #17
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oh! Found it. The original fork looks something like this:

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Old 12-14-09, 02:51 PM   #18
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It's going to be painful, but just wait it out till you find a matching fork. The rake seriously affects the intended geometry and handling and I don't think you want to compromise the ride of an NJS frame you've been dreaming about.

Hold out, it'll be worth it.
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Old 12-14-09, 03:07 PM   #19
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hmm. This is the only 3rensho fork I found out there so far.

It's blue, 144mm, $128.

EDIT: and it seems like the dropouts are rusty.
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Old 12-14-09, 03:43 PM   #20
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I'd spend some time tracking down the exact dimensions of the fork designed around your size frame.
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Old 12-14-09, 04:13 PM   #21
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You could try contacting SanRenSho with the serial number of the frame, they might have a record of it.
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Old 12-14-09, 04:49 PM   #22
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don, isn't 3rensho gone now that Mr. Yoshi Konno is paralyzed?
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Old 12-14-09, 05:18 PM   #23
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The Spicer fork is nice, I've been riding mine for a few years without issue.
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Old 12-14-09, 05:42 PM   #24
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Quote:
Originally Posted by ichitz View Post
Hey guys and gals!
I very recently got my hands on a 3rensho frame off ebay.. sort of like a christmas gift to myself (it's really just an excuse for wanting this frame so badly). I'm looking for some advises for the fork and wheelset.





According to Affinity Cycles (who sold it on ebay), the guy who previously owned it trashed the fork, that's why it didn't come with the frame. The head tube was reamed by Mr. Tanabe of Kalavinka to take ISO instead of JIS. What kind of forks would you guys suggest? I prefer something classic, steel and lugged over an aero fork, but i'm open to all your suggestions.

EDIT: I'm gonna run front brakes, so a fork that is drilled for brakes plz.
San Renshos were imported by Yellow Jersey Ltd in Madison Wisconsin. Talk with Andy Muzi, he can tell you what fork you need. http://www.yellowjersey.org/
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Old 12-14-09, 06:38 PM   #25
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With the unique geo it might make sense to have a fork built for it. Not the cheapest option but it's up to you.
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