I’m pretty excited about my new bike. I had this frame sent over from England, it was almost the last one. It is a Cotic X.
For winter, I built this with a 1 x 8 drivetrain. Shown with slick Pari Moto tires, just before our epic winter had struck. It is 8 speed in the rear, because a Campagnolo 10 speed shifter pulls just the right amount of cable when coupled with a Shimano 8 speed cassette and a suitable Shimano derailleur.
I hardly was able to ride this, before it got cold. Then really cold. Then snowy, icy, and really cold. Shoot! I was looking for winter tires in the 650b size, but everything was too big. But I decided to give the Vee Rubber XCX a try, based upon measurements others had taken. And yes, the 650b/27.5″ x 1.95 Vee Rubber XCX did indeed fit in this frame (rear), without modification to tire or frame (which I was pretty close to doing). And the Kona Project 2 fork, well it has tons of room, so I went with a Vee Master Blaster.
I’ve tried to get out on this as much as possible, but it has been so freaking cold!! But so far, I like it. I think it is going to shine the most off road and on gravel, which of course is the intended use. And it handles the snow well, too.
The story of this bike…well, of course, I could go on and on about all the minute details- and, I really have nothing better to do, so here goes…
Actually, not a long story. But, my experiences last season with the 650b wheels and gravel races were good, and I started thinking about what would make the bike better. And I realized that the best thing would be to design a frame from the ground up, optimized for the wheel size. And I sat down with Google Sketchup, and designed a frame that I thought would do everything I wanted it to.
Although there are a fair number of production 650b road bikes out there now, and more coming, these are all (mainly) in the Randonneur style. And of course there is nothing wrong with that, but it is not what I was after. And then there is the route of the custom builder, too, which has been and is being done. But the custom frame does carry a higher price tag, which I am not currently able to embrace, psychologically or practically. And if I can’t afford to employ an experienced frame fabricator, I wouldn’t be able to afford building it myself, either.
But roaming around the vastness of cyberspace, seeing bikes others had converted (to 650b), well, I searched to see if I could find something that I could convert, and meet my requirements.
- Bottom bracket drop around 60mm
- Short chain stays, overall short wheelbase
- Steel, but not excessive weight
- Disc brake mounts
- Sloping top tube geometry
- Generous tire clearance
And I found the Cotic, and it pretty much hit all the points, closely enough, and was pretty darn close to my drawing. So I pulled the trigger, and got it.
The main purpose of this bike is gravel racing, which I am looking forward to doing a fair amount of this coming season. I have other bikes, road, mountain, track, but what is cool about this bike is you can take it just about anywhere. Really just a tire change makes it capable on pretty rough off road conditions, and with a 38c lightweight tire, the bike flies along pretty well on the smoother and harder surfaces. I really like that!
So, like I have said earlier, I have ridden this a limited amount. I was never able to take it on a gravel ride to make a good assessment. But I am hopeful this will be my “go to” bike this year, and proves itself up to my anticipation. I have some new components at the ready, just waiting for Spring to break and get this bike into full racing dress.
And the custom frame, or the self custom frame, will have to wait. But in time, that may come, too.