[Bones1]

Cannondale question? Is it possible to put newer rims on a R300 given the fact I can't spread the rear stay. And any idea which make would work looking for a more of an upgrade. THANK YOU .

 

[Kuma601]

What year R300?

What is the current spd.group on the bike?
I suspect it is already 130mmm spacing.

 

[Kerry Irons]

Rim swap

Cannondale question? Is it possible to put newer rims on a R300 given the fact I can't spread the rear stay. And any idea which make would work looking for a more of an upgrade.

Rims can be swapped by despoking the wheel and rebuilding it with new rims. I suspect however that you were actually asking if newer WHEELS could be installed in your frame. To answer that question, we'd need to know what year your current frame is. If you tried to install 8-9-10 speed wheels and they wouldn't fit, then you are probably out of luck.

 

[AndrwSwitch]

More speculative answers here.

If the problem is that your R300 is spaced 126mm, you need to build a new rear wheel. My mechanic and I looked through QBP the other day for a halfway-decent rear wheel for my 126mm-spaced commuter, and there's only really trashy wheels. There are some perfectly good 126mm hubs still available, though, and whatever rim you want/will be compatible with your brakes can be laced on.

If it's 130mm and you have 7+ speeds, any new wheel is fine. If it's fewer than 7 speeds, you probably need to build a wheel on a 130mm threaded hub, or you could use this as an excuse to upgrade your drivetrain too.

 

[MR_GRUMPY]

R300?
circa 1986 boneshaker?

Either live with 7 speed, or buy a newer frame.