My Comet250 not fast enough!

**skelstar** · 14th September 2006, 13:01

Most I ever got out of my Comet250GT was 140km/h. Maybe a smidge more but not much. Maybe gearing a little different on the 'R'...at least the wind-resist will be.

**SwanTiger** · 14th September 2006, 13:51

Originally Posted by skelstar

Most I ever got out of my Comet250GT was 140km/h. Maybe a smidge more but not much. Maybe gearing a little different on the 'R'...at least the wind-resist will be.

Doesn't a naked bike lose 15 or 20 kmp/h to wind resistance?

My Girlfriends GV 250 will do 120 kmp/h with me on it however I've read on here that one guy gets 138 kmp/h out of it.

I imagine the gearing is a bit different, but still the GT 250 comet should be able to pull 100 kmp/h no problem. It takes a lot of work to get my girlfriends bike to 110 kmp/h and I imagine the GT 250's are the same being naked.

Did you ever hit redline in top gear skelstar? my GF's bike only pulls up to 9,000 rpm (120 kmp/h) but has a 11,500 rpm red line.

**skelstar** · 14th September 2006, 14:18

At 140km/h (closed roads of course) it was 10,500rpm I think. I imagine you could cruise the Sth Isl at 120km/h no probs at all. Apparently.

**twistadias** · 15th September 2006, 01:18

I guess you guys are right. Maybe its just me who needs more practice. I thought it would trail along smoothly as a car does on speeds like that.

Guess i should postpone the test

**McJim** · 15th September 2006, 08:10

Originally Posted by twistadias

I guess you guys are right. Maybe its just me who needs more practice. I thought it would trail along smoothly as a car does on speeds like that.

Guess i should postpone the test

Don't postpone the test on such a small detail dude.

If you have trouble getting round corners - postpone your test.
If you have trouble accelerating away from a junction - postpone your test
If you don't know when to indicate - postone your test
If you have difficulty bringing the bike to a safe stop - postpone your test

But for something as minor as not knowing the throttle on a bike is a completely different animal to the accelerator on a car - make mental note and adjust - Best of luck with your test.

**Crisis management** · 15th September 2006, 08:28

Originally Posted by twistadias

Guess i should postpone the test

If you want a semi-literate opinion of your riding, I am in Hillsborough and would happily follow you around the block a couple of times and tell you what I think.
Sounds like you would be OK and just need a bit more confidence....if I can help give me a PM

Iain

**skelstar** · 15th September 2006, 08:50

Yeah mate, dont give up. I got the feeling that when I did my R test it would be hard to fail. More about road code than anything else.

**Searchin'** · 15th September 2006, 09:24

Originally Posted by McJim

Yep - you are supposed to hold the throttle open to keep going - it's not like a manual car - I've managed to get the VTR over 130kph in 4th gear so I imagine the Hyosung should do 100 easily - speak to WarlockNZ and Swantiger - both users of the Korean 250's - if you're bothered by engine braking get a 2 stroke - like Mr Peanut's - be prepared for the fact that it will have twice the power though.

Excuse me - must remove tongue from cheek - 2 stroke inappropriate as pointed out by Ixion below - very fast by comparison - do not attempt to ride one until 4 stroke fully mastered.

Wow! About 130 is the best I've been able to do on my VTR. I guess 10kg (or 100N) makes all the difference...

**Morcs** · 15th September 2006, 17:58

Or just buy my scooter...

Pulls 120 all day long

**McJim** · 16th September 2006, 10:01

Originally Posted by Searchin'

Wow! About 130 is the best I've been able to do on my VTR. I guess 10kg (or 100N) makes all the difference...

Nah - it's the mass not the weight that makes the acceleration less - and with greater mass that would increase your inertia for a given velocity which means your terminal velocity would be greater....blah blah blah..

Actually I've fitted a little Givi Airstar half arsed fairing to the front of my bike so when I tuck my head down the bike goes faster.

**Ixion** · 16th September 2006, 10:24

Not entirely . Greater mass (weight, more or less) will increase rolling resistance, and inertia. And usually, heavier rider = bigger rider, more air resistance.

By experience, rider weight does make a difference on small bikes.

But remember, on a naked bike you will only get top speed flat on the tank. (real pros used to climb inside) And on a small bike the last 10 or 20 kph may take a LONG straight to wind up to.

**TerminalAddict** · 16th September 2006, 11:38

Originally Posted by Ixion

And on a small bike the last 10 or 20 kph may take a LONG straight to wind up to.

.. took me about 3 kms of straight road to get my xv250 from 130 to 140

.. and it would only do it if I had been riding for at least hour, and the engine was nice and warm.

Even now, on the 919, there is a marked difference between a cold engine, and a warm one.

**Searchin'** · 16th September 2006, 12:56

lol.

(Apparantly my message has to be 10 characters.)

**WarlockNZ** · 16th September 2006, 13:58

Ah the mighty hyo hyo, just for the record. umm hello Mr Plod

.. i've had the GTR up to 150 and she was pulling about 10k, with a redline at 10 and a half, i see no reason why you would be lacking power.

I ride to work everyday at 100 (legal limit

) and she sits on 7500 Rpm, Engine breaking is pretty quick on the GTR so you will need to be aware of that.

Of course that being said, it may be that it was babied when it was run in, i have heard some stories that a poor run in can cause a lack of power, but i'm sure to be corrected if i'm wrong.

In short the Hyobag is plenty quick, with more than enough grunt for a newbie.