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Combo cyclo-cross- and fixed gear-capable frames?(16 posts)

Combo cyclo-cross- and fixed gear-capable frames?Tahoe Gator
May 6, 2003 8:06 AM
Looking ahead to winter, I am thinking of trying some cyclo-cross and/or fixed gear training to stay fit. Is it possible for one bike to do double duty with a few mods? If so, any recommendations -- new or ideas for used -- appreciated.
Check your post in general (nm)Nater
May 6, 2003 8:11 AM
nm
re: Combo cyclo-cross- and fixed gear-capable frames?flyweight
May 6, 2003 8:32 AM
Gunnar makes a single speed cross bike. It's built from Reynolds 853 w/ True Temper stays. It's fitted with 120mm track dropouts which is great for fixed gear (many 135mm single speed hubs lack the double threading for a track lockring). I've had mine for 5 years and love it. They don't show this model on their site anymore but basically it's a modified Street Dog and they will make you one if you ask. You might also be able to find one of the original single speed cross models.
Surly, Van Dessel, Soma, old touring frames...Stampertje
May 6, 2003 8:48 AM
For 'cross you need a sturdy frame with lots of tyre clearance. For fixed gear you need horizontal drops. A lot of old road/touring frames have both.

Great all-round frames are the Surly CrossCheck and the Soma whateveritscalled. I have a Surly and while I love it I wouldn't call it a race bike. BTW, I have it set up with (a lot of) gears, not as a fixte/singlespeed.

The Van Dessel Country Road Bob is fixed/singlespeed only. So is the Gunnar if I read the previous post correctly.

I'm sure there are other options. Check the reviews for the Van Dessel and the Surly on this site.

What kind of weather do you get in winter? We mostly get rain - if I ride fixed I still get wet, so that's no more fun than riding with gear. But if I ride cross, I get muddy as well! So I'd recommend fixed gear for cold, sunny winter weather and 'cross for any weather that makes the dog hide under the car.
Surly, Van Dessel, Soma, old touring frames...atpjunkie
May 6, 2003 2:41 PM
there's a guy in this post who rides a swank Seven SS that he switches the wheelset out to do SS fixed roadwork if memory serves me right. all you need is track drop outs or an eccentric BB housing (Ibis Single Malt now IF) the eccentric is good if you plan on running discs.
Also the VolpeGlowBoy
May 6, 2003 12:08 PM
not sold as frame-only (except sometimes on eBay), but the complete bike is around $850 with Tiagra/Deore/Avid components. It's marketed as a touring bike to avoid cannibalizing their higher-end 'cross rigs, but it's a real cyclocross bike with a very nice Bianchi steel frame. I suspect the frame is on the order of a pound lighter than the Surly Cross-Check, and the rides is smooth as butter.

Best part is, like the Surly, it has horizontal dropouts so you can go singlespeed (which I did) or fixed (not my taste) if you want to. Clearance for 35mm tires in back, 45mm+ in front.
I agree- My Volpe went CX, now going Track (nm)TFerguson
May 7, 2003 3:15 PM
Fixed gear issue and one other optionflyweight
May 6, 2003 3:38 PM
One issue to bear in mind if you want to run a fixed gear is limited hub availability in anything other than 120mm track spacing. Most single speed hubs are 135mm and most lack the double threading needed for running a lockring. If you're going to run a fixed gear on the road you're going to want a lockring. The only lockring threaded non-120mm hubs are from Van Dessell and Phil Wood.

Also promising is the new White Industries hub with an eccentric axle which allows vertical drop bikes to go single speed without using a tensioner and will even allow you to run a fixed gear (you can't run a fixed with a tensioner - very BAD idea!) The White hub should be out by now and will probably cost ~$160.
White IndustriesAhimsa
May 6, 2003 4:20 PM
"Also promising is the new White Industries hub with an eccentric axle which allows vertical drop bikes to go single speed without using a tensioner and will even allow you to run a fixed gear.........The White hub should be out by now and will probably cost ~$160."

I'm building a wheel with one right now. I'll let ya know what I think of it.

A.
White Industries eccentric fixed hubbuffalosorrow
May 8, 2003 1:33 PM
I am totaly excited about this, took me some time and a mental drawing to understand how it works. The hub rotates off-center to attain chain tension.

This is from the White Ind website:

"This hub was the brain child of one of our customers located in New York. Eric contacted us one day with an idea to make an eccentric fixed gear hub. The goal was to have a fixed gear hub that could be used with vertical drop outs without needing a chain tensioner.

We were excited about the idea and began engineering the hub that we feel will transform the fixed gear market. The hub houses two sealed cartridge bearings, an aluminum axle, and stainless steel axle ends. The key is the location of the fixing bolts located in the axle ends. The bolts are offset 7.5mm from the center of the axle. Normally the fixing bolts are centered to the axle. Once in the frame the axle ends can rotate 180 degrees which gives 15mm of travel. Therefore, by rotating the axle ends you can attain proper chain tension.

The eccentric ENO is a flip flop design allowing the rider to use a fixed gear on one side and a freewheel on the other. The hub can be ordered in 32h or 36h for frame spacings of 126mm, 130mm or 135mm."
Hey Flyweight...Nater
May 7, 2003 11:24 AM
Surly also has a 135mm fixed/free flip flop hub available now. It's got stepped threads on one side for a cog/lockring and freewheel threads on the other side. Webcyclery has them!
Hey Flyweight...flyweight
May 7, 2003 4:45 PM
Yeah, I should have checked my latest Surly catalog before posting.
phil wood...buffalosorrow
May 7, 2003 1:54 PM
I built up my girlfirends aegis singlespeed, swaped off the replaceable drop outs to track. And had a phil wood high flange flip flop wheelset built through webcyclery (you gotta show respect, both wood and webcyclery). To my surprise she rides MTB fixed and get compliments (more than id like to admit) for both the bike and personal individuality.
Several 135mm fixed/free hubs1x1 Speed Craig
May 11, 2003 1:40 PM
Actually, there are several 135mm fixed/free options (in a variety of price ranges) out there. Here are the ones I know about:

Surly once moreMTJ
May 7, 2003 5:20 AM
Surly makes a device called the Fixxer that will convert any shimano hub into a fixed gear, solving all the problems people are bringing up about hub spacing between the two different bikes. From their website:

"The Fixxer™ allows you to cheaply and easily convert any Shimano™ cassette hub (except Silent Clutch or pre- 1997 Dura Ace) or any hub or wheel using a Shimano™ cassette body into a true fixed-gear. . . Most converted hubs can be spaced 120, 126, 130 or 135mm, and can even be used with a freewheel if a freewheeling single-speed conversion is desired"

Surly also makes great frames, as you probably have noticed from all the posts on this forum.
That's exacly like my bike...1x1 Speed Craig
May 11, 2003 3:29 PM
I wanted the same type of bike, so I ended up ordering a custom SS Steelman Eurocross 525. The bike is essentially a stock with a couple modifications:

  • ~1 cm headtube extension

  • 135mm rear spacing

  • Paul Horizontal dropouts


I have yet to ride it offroad, but it'll happen soon. Right now, I'm training in fixed mode for the MS-150 ride. I'm riding the first 75 miles fixed, and the 2nd 75 miles SS.

Oh, I also wanted to mention that I'm using the Surly 135mm fixed/free hub (also mentioned further down in this thread). I'm really happy with the setup.

Let me know if you have any more questions.

Craig
My Biking Website