Author Topic: Lightest 15mm 650B rigid fork  (Read 1922 times)

HaakonJohansen

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Lightest 15mm 650B rigid fork
« on: February 15, 2016, 09:03:48 AM »
Hi there fellow bikers. I'm wondering if anyone know some 15mm 650B forks around the 550 gram mark (without the axle)? I know about this one http://bikeshop.no/WebPages/Produkt/ProduktInfo.aspx?plid=76849&WebSiteMapNodeID=1001005 (Norwegian bike shop), but they're not in stock until in the middle of March or so, so I'm looking at getting something similar (or exactly the same if anyone knows who makes these) from the web. Anyone with suggestions?



cmh

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Re: Lightest 15mm 650B rigid fork
« Reply #1 on: February 15, 2016, 09:28:51 AM »
Peter's 650b fork is listed at 650g:

http://www.xmcarbonspeed.com/Productinfo.asp?f=1299

However if you can stand 10mm more fork length (will reduce head angle about a degree, if I remember right)  and weight is more important, this one is rated at 490g:

http://www.xmcarbonspeed.com/Productinfo.asp?f=1286

470mm to 480mm isn't a HUGE difference in fork length.

HaakonJohansen

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Re: Lightest 15mm 650B rigid fork
« Reply #2 on: February 15, 2016, 09:49:08 AM »
would love that last one with a 15mm axle, but it only comes in QR. 650 is a bit on the heavy side, as the one in my link is 100 grams lighter. But thanks for the suggestions.

cmh

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Re: Lightest 15mm 650B rigid fork
« Reply #3 on: February 15, 2016, 04:47:48 PM »
would love that last one with a 15mm axle, but it only comes in QR. 650 is a bit on the heavy side, as the one in my link is 100 grams lighter. But thanks for the suggestions.

Oh, yeah, I missed the 15mm TA part, even though you had it in the subject.  ;D

I'd take a skim through the topics and look for some issues folks have had with carbon forks. Also, don't know how heavy you are, but bear that in mind as well.

bxcc

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Re: Lightest 15mm 650B rigid fork
« Reply #4 on: February 15, 2016, 07:49:33 PM »
Most 29er forks are in the 650 gram range. Workswell has a 27.5 fork but it's only 10 grams lighter at 640 grams. Even the Niner RDO fork (630g) and ENVE forks (686g) are are in that range. Seeing as the RDO (race day only) fork, which seems to be a very well respected rigid fork, is at 630g, I'm not sure I would feel comfortable saving the extra 100 grams. Especially if it's a generic brand. Here is the Niner RDO if you are interested. Pretty good deal from Jenson right now if you like green.

http://www.jensonusa.com/Forks/Niner-RDO-Carbon-29-Fork?cs=Kermit%20Green

HaakonJohansen

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Re: Lightest 15mm 650B rigid fork
« Reply #5 on: February 16, 2016, 05:50:55 AM »
Most 29er forks are in the 650 gram range. Workswell has a 27.5 fork but it's only 10 grams lighter at 640 grams. Even the Niner RDO fork (630g) and ENVE forks (686g) are are in that range. Seeing as the RDO (race day only) fork, which seems to be a very well respected rigid fork, is at 630g, I'm not sure I would feel comfortable saving the extra 100 grams. Especially if it's a generic brand. Here is the Niner RDO if you are interested. Pretty good deal from Jenson right now if you like green.

http://www.jensonusa.com/Forks/Niner-RDO-Carbon-29-Fork?cs=Kermit%20Green
Thanks. Appreciate your input and knowledge. I do have to say though, that it is the house brand of the company selling it here in Norway. And safety is generally considered first priority on everything here, so I wouldn't really feel unsafe using it for my purpose. However I did contact Peter, and he told me that he sells this fork; http://www.xmcarbonspeed.com/Productinfo.asp?f=1286 in a 15x100mm version now, which weights only 515+-10 grams (without the axle I guess)! But this might be a bit too light then maybe? He seems like a guy who really knows his stuff though.

MTB2223

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Re: Lightest 15mm 650B rigid fork
« Reply #6 on: February 16, 2016, 06:56:30 AM »
I can confirm the FK052 (650B) fork weigths 604gr and 628gr with paint.
« Last Edit: February 16, 2016, 07:00:59 AM by MTB2223 »

bxcc

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Re: Lightest 15mm 650B rigid fork
« Reply #7 on: February 16, 2016, 08:59:25 AM »
Those are some pretty light forks. I wasn't sure about the forks you are getting in Norway. Carver bikes is relatively local to me and I checked their site and they don't have anything in that weight range. I would tend to trust Peter's fork over some of the other generic brands. Not that they must be better, but banking on the fact that if Peter was seeing reliability issues with them, he would stop carrying the specific model.