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I am looking to start CX racing this winter and wanted to know if anyone has used a 29er. What draw backs compared to a CX bike. etc. Thanks. I am looking at the Kona JTS or Masi CXR. 29er would be a frame built with some parts off an Blur I never ride.
 

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A cross bike should be lighter than a mountain bike. A 29er is heavier than a normal mountain bike.

Which isn't to say that a 29er couldn't work as a cross bike. But cross bikes are optimized for cross races. (Or vice versa, at this point in history.)
 

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dog is my copilot
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Speaking from some experience, a 29er doesn't make a fantastic cyclocross bike IMO. I've been using my Karate Monkey built up as a sort of monstercrosser for a while now. On Saturday our team did a couple hours of skills stuff. We set up a course in a big field at a school that had barriers, run ups, off camber, short drops and some sharp turns. The only things missing were mud and a sand pit. I rode my Monkey set up with drops very similar to the position on my JtS, road wheels with 35c Speedmax tires and cross gearing. It handled okay but didn't have the snappy feeling that my JtS has and didn't ask "how high?" when I said "JUMP!!!". I felt the extra weight picking it up over the barriers and it doesn't shoulder worth a damn.

Don't get me wrong, the Monkey is a great bike. I love my Fisher 29er too. For testing the waters with a bike you already have a 29er is great but I wouldn't build one up specifically as a race bike, or buy one over a proper cross bike.
 

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Is there a CX bike being made with 29ers???
Not someone's 29er converted, but an actual CX being built with 29s???
I know that might not be the best for racing.. But if you were a road/mt bike guy and you were about to move to a mt. town with unlimited access to fire roads.... I think an CX 29er with disc brakes might be THE BIKE to have...
 

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Sprocket - Matt said:
Is there a CX bike being made with 29ers???
Not someone's 29er converted, but an actual CX being built with 29s???
I know that might not be the best for racing.. But if you were a road/mt bike guy and you were about to move to a mt. town with unlimited access to fire roads.... I think an CX 29er with disc brakes might be THE BIKE to have...
Aren't 29er and 700c wheels the same size? I think the only thing preventing my neighbor from mounting my 29er wheel to his bike is tire clearance and his use of caliper brakes instead of the Vs I have on my 29er.
 

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Sprocket - Matt said:
Is there a CX bike being made with 29ers???
Not someone's 29er converted, but an actual CX being built with 29s???
I know that might not be the best for racing.. But if you were a road/mt bike guy and you were about to move to a mt. town with unlimited access to fire roads.... I think an CX 29er with disc brakes might be THE BIKE to have...
Cross wheels are 29er wheels, and vice versa.

Regarding the rest of your post, google "monster-cross".
 

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atpjunkie said:
everyone tells me "Get a rigid 29er"
I say "Thanks I own 3"
Unless you're running discs or Vs you aren't gonna be able to fit a 2.3+ tire in though. Guessing the geometry of a MTB29er is also different from a cross bike.
 

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You call that running?
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Sprocket - Matt said:
Is there a CX bike being made with 29ers???
Not someone's 29er converted, but an actual CX being built with 29s???
I know that might not be the best for racing.. But if you were a road/mt bike guy and you were about to move to a mt. town with unlimited access to fire roads.... I think an CX 29er with disc brakes might be THE BIKE to have...
Let's make sure we're all speaking the same language.

29er=700c wheel + a mountain bike tire.

All adult cx bikes have 700c wheels. They aren't 29ers because they have skinnier tires.

As with 26" wheel mountain bikes a 29er will work OK for racing if you already have one but because they're much, much heavier and ill-suited to shouldering they are definately not the best tool for the job.

Edit: too slow!
 

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PeanutButterBreath said:
What do brakes have to do with it?
I was only talking the neighbor with a Cross Check who is using regular Campy Chorus caliper brakes. Those'd work fine assuming the frame has clearance.
 

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PeanutButterBreath said:
What is a "caliper brake"?
:confused:
regular road brakes...not cantis or vs.

<img src=https://www.fullcycles.com/images/campy-chorus-brake-caliper-set.jpg>
 
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