Dt 125r dyno

[Calum]

@jonne123 To get 25hp out of the stock DTR motor? I wouldn't even know. Port the barrel, increase the compression ratio, correct the squish band. Widen the exhaust port. Use an aftermarket ignition system. Use an underslung exhaust. bigger carb, uprate the air intake. Lighten the flywheel.

[jonne123]

So im simple terms its easier to buy another bike.

[Calum]

@jonne123 Not really, that sort of power at the wheel is good. And is still faster than the WRX. The WRX will be making that power for a very short time at the upper range, where as the DTR produces max power at 7K and revs to 12k.

The two stroke engine produces more power end of. Then it's just a case of how you tune it as to where that power is made.

My RS easily trumps my DT for power. But you really have to be in the powerband to use it. The DTR I can ride at low RPMs happily.

[jonne123]

They dynoed honda cr and it made 27hp at that dyno.

[Calum]

That's a motorcross bike! You can't compare a full blown motorcross bike designed to last 40hrs of use to a bike that is designed to last 4000hrs!

[jonne123]

Well true. but what is realistic top speed from dtr

[Calum]

Speed and power are not the same. Throw the DTR off a cliff and the top speed is going to be quite high.

[jonne123]

I understand. Is it like 120?

[Calum]

KMH? Yeah that sounds about right.

[jonne123]

No i meant mph

[Calum]

@jonne123 What! 120MPH out of a 125? A GP bike maybe, but not a road going bike.

[jonne123]

Jk i know that 170 is very good for some gagiva mito

[Calum]

@jonne123 170KMH is absolutely pushing it.

My brother has a mito and we were going down some private road and he said the speedo read 120MPH. I said, funny that mine read 90

But his was standard with an exhaust and 28mm carb.

My RS will touch that sort of speed but it has every mod conceivable on it. But you could touch that speed with a light rider.

[jonne123]

How many hp tzr?

[Calum]

I don't know, why don't you Google it.

The TZR wasn't anything special, so I'd imagine about the same.

If you absolutely must have the most demanding HP bikes then go for the Italian bikes. Aprilia/Cagiva or look for the absurdly rare and Overpriced Japanese bikes.

The TZR RR SP or the Honda NSR RR.

[jonne123]

Well it reads that tzr 125 has 26hp

[Calum]

@jonne123 Highly doubt it.

The RS is about that, and the 2RK TZRs wouldn't hold a candle to them. The SPs might make that sort of power, but they only made handful of those.

[Calum]

That's the SP and there are none on eBay.

Where as you are bound to find a handful of RS's and a few Cagivas if you search.

[jonne123]

I dont understand why yamaha didnt make dt more powerfil because they had competiton.

[Calum]

@jonne123 You literally don't understand do you?

Why does power = better?

That's not what the DTR was about. It's got nothing to do with power. It's a road going bike for learner legal. The requirement for that was 11Kw. It makes 11Kw on the nose. As does the WRX and every other 125 available today.

Power != Better!

The DTR is not a competition bike, the YZ is. And the YZ 125 makes like 30+ hp. it's got nothing to do with power so why do you keep harping on about power.

The competition for the Yamaha were bikes like

Suzuki TS125

Kawasaki KMX 125

And it was competitively marketed and priced against those accordingly.

Stop equating power to better.