Originally Posted by Myosmith .
I've been looking at building myself a road bike as I ride a 30-pound, hybrid/commuter/touring bike now. Looking through the numerous available frames I started wondering if cyclocross frames are appropriate for non-competitive road biking. I'm fairly heavy at 230 pounds and ride some less than ideal roads. Would a cyclocross frame be stronger than a typical road frame in the same material? Is the geometry appropriate for longer rides (century +)?
FYI. At one time (when "long" reach 49-59mm brakes were "regular" reach and today's "regular" 39-49mm reach brakes were "short" reach), CX bikes were simply Road bikes shod with fatter, "treaded" tires ... that is, the same bike that racers used during the regular season were used in the off-season CX races.
A problem which many riders find with most contemporary Road bikes is the maximum tire size that can be used ... a 700x28 tire seems doable on the rear for most, but most CF forks see to be limited to a 700x25 tire. On the other hand, for a lot of riders, 700x25 is considered to be a fat tire ...
- I think, but I am not sure, that a Colnago CF Road fork can handle a 700x28 tire.
- I think an Alpha Q (700c) fork might be able to handle a 700x28 tire, too.
A CX frame can handle a 700x32 without any problems. A maximum raceable size of something like 700x40 means that most CX frames probaby don't have much clearance for LARGER tires than that.
FWIW. Presuming that your current Hybrid has a suspension fork, then ONE thing you may want to consider is simply replacing the suspension fork with a rigid fork -- either a Tandem or CX fork. Both types of forks are available in either steel or CF, with the latter often weighing only about a lb.
If you consider that a good suspension fork for a 26er MTB weighs about 4+ lbs. then I would presume that the suspension fork on a typcal Hybrid must weigh at least 6 lbs.
So, you could shed between 3-to-5 lbs. from the weight of your current bike just by changing the front fork
Hybrids used to come with 700x42 +/- tires. A wheelset with 622-15 or 622-17 rims + [COLOR= #ff0000]
622-28[/COLOR] or 622-30/32 tires will probably shed a couple of lbs. from your current wheelset.
Inexpensive Hybrids often have inexpensive ([COLOR= #808080]i.e., heavier[/COLOR]) components -- often, the crank on less expensive bikes have steel chainrings ([COLOR= #696969]hey, nothing wrong with
some steel chainrings ... I have a steel 39t inner chainring on one of my Dura Ace cranksets![/COLOR]) which are significantly heavier than aluminum chainrings -- a little steel here & there ([COLOR= #808080]e.g., even headset cups[/COLOR]) and another pound-or-more has been added to the bike, or can be shed.
Here's an out-of-date picture of an old aluminum Hardtail that I retrofitted with a 700c CF fork + spare Road components ... its rolling weight varies between just over 19 lbs. & about 20 lbs. depending on the components.
- The bike currently has a 118mm Octalink BB + DA Road crank ([COLOR= #808080]not pictured[/COLOR]) ... without the longer spindle, neither a 52t or 53t chainring would clear the chainstay.
- The fork is an Alpha Q + Campagnolo Record headset ([COLOR= #808080]I reckon that's less than a pound for the fork & headset & spacers[/COLOR]).
- The current rear derailleur is a Shimano 6503, the front derailleur is an XT (top pull), the brake calipers are Tektro long-reach mated to some Campagnolo Chorus shifters.
- Different wheels & larger tires ([COLOR= #808080]and especially, tubes![/COLOR]) might push the weight over 20 lbs. In theory, you should be able to get the weight of your Hybrid ([COLOR= #808080]presuming it has an aluminum frame, that is[/COLOR]) to between 20-and-22 lbs. without too much effort ([COLOR= #808080]or, strain on your wallet[/COLOR]) when compared with ponying up for a new frame & fork + components ...
- Add weight for fenders & racks, if applicable.
That's a really long way of saying that if I were you then I would simply change the fork & some of the components on your current bike ...
REMEMBER -- Most of the components which you put on your current Hybrid frame can be transferred to almost any other frame (CX or Road) in the future.