CB350 vs RD350. Can I get a comparison ?

alexmac

Been Around the Block
I have narrowed my next bike down to these 2. I was wondering how a performance tuned CB350 would compare to a similarly prepped RD350 ? Anyone have any experience they could share?
 
RD350:
Can and will violently devour comparable bikes of twice its displacement. Even more vicious with an RZ piston and some porting.

CB350:
Smooth and friendly. Great daily rider. Less likely to murder you.
 
There is no comparison. The RD eats CBs for b'fast.

When I say there's no comparison, that's not strictly accurate. You should be able to dig up road test comparisons form back in the day. As Catbird mentioned, the RD is a little more sporty and can be made into a 60hp firebreather but it's also easy to have them meltdown. Send the barrels out to get them ported (stage 1) and rebuild the motor with new seals and a decent ignition and then fit good pipes and you are good for 45-50HP. Spec2 are the guys to go to for that bike. There are other pipes and other tuners, but Spec2 is teh place. My RZ has Spec2 pipes and all I do is fill it with gas and oil and ride it. It is totally reliable and a whole lot of fun to ride.

CB350 is more common and less powerful and harder to get good power out of without a lot of time and cash. A full race THR CB350 with every trick in the book will make around 45 and will cost a small fortune. with say ported head, 5.5mm valves and spring kit plus Jemco pipes and 30mm carbs it should make around 35 or slightly more at the rear wheel.

I have owned both. RD's I still have in one shape or another and the CB I sold because it was boring. But that's just me. Others love their CB's and let's face it Honda sold them by the millions.

It's a personal thing. I like the raw feeling of a two stroke coming on the pipe. Others hate the noisy, smelly things. Which are you?
 
go with the RD if you want a performer. I have a suzuki gr650 and my buddy has an rd350, riding the rd as far as performance feels almost the same if not better. quick acceleration, nimble handing, and of course the sweet smell of a smoker!
 
If you want to ride with your friends, don't get the RD. The only people that enjoy the smell of 2-strokes are the ones riding them.
 
Friends!
We don't need no stinkin' friends.

Real men ride alone

I ride with friends and I ride alone and I prefer to ride alone. I also get into less trouble trying to outbreak them into turn one -----on the street. I do ride on the street with the wife and that's all good and I love to ride with others on the race track, but in general riding alone is a great way to clear your head.
 
Plus if your ridding alone your friends with 750s wont feel bad about there bikes being slugs and youll get real good at changing plugs
 
Not sure if get.

I've been riding a '75 DT250 everywhere *except* the road for the last 11 years, and in that time I've fouled exactly one plug, and that was after I *thought* I'd disconnected the autolube and ran two tanks heavy on premixed oil.
 
It's a tough comparison to make. Not just because the RD is faster. Owning and riding a 2 stroke is just all together different. I have an RZ 350, which is the newer updated RD. It is pretty fast for a bike of that size from that era. And it's nimble. But, all the power is up high. 2 strokes make power in a much more narrow rpm band than 4 strokes. They don't really like to putt through town. Strokers are fun, but take getting used to.

It boils down tho this: if you want a fun bike for Sunday rides and bike nights, the RD would be great. If you need a reliable daily bike you can ride in city traffic to work everyday, I'd go for the CB.
 
My "daily" bike is a DT250, a single-cylinder two-stroker. It's very simple and very practical for around-the-town use, but you *really* have to wind it out to go highway speed. In order to get more than twenty horsepower out of the engine, I'd need to aggressively port it, which would drastically improve output but would also lead to a much narrower, much more difficult power-band.
 
Catbird said:
My "daily" bike is a DT250, a single-cylinder two-stroker. It's very simple and very practical for around-the-town use, but you *really* have to wind it out to go highway speed. In order to get more than twenty horsepower out of the engine, I'd need to aggressively port it, which would drastically improve output but would also lead to a much narrower, much more difficult power-band.

No one is saying a 2 stroke can't be a daily rider. Just that for some types of daily riding, it's not ideal. Do you by any chance live in a large city? I've run my RZ through Pittsburgh rush hour. Can it be done? Sure. Doesn't mean it would be my first choice of bikes.
 
It is hard to argue with Cthulhu's ride but I have pretty much decided on the Honda... for a first cafe.
From what I have read about the RDs, it seems like having a stripper girlfriend; fun and exciting, but hard to live with on a daily basis.
 
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