2 Stroke vs 4 Stroke 100/125 for a heavy rider?

[UnspeedySam]

I have a friend who is doing his CBT this afternoon and looking to buy his first bike. He's a bit of a body builder and as such weighs about 15-16 stone.

He likes the look of both old CGs as well as strokers like the Suzuki GP100 and of course the Yamaha RXS100. However which would be better for someone of his build?

Cheers
____________________
Riding: BMW R1150RT `02 bought mildly crashed
Fixing: Also the BMW as I get less broken bits
Gone: ZZR600 '00, TRX850 '97, RXS100 '93, JS125-6B '07, BMW R1100RS '93, Kawasaki ZX-6R-J2 '01, Honda Bros NT400 NC25 '88

[GSF Jamie 600]

I'd definately have to recommend a 2 stroke

Its the only way of generating any power out of little engines like that, and if a 4stroke 125 with a 16 stone chap sat on it was presented with a hill, i wouldn't be suprised if the bike started rolling backwards lol

For better mpg and reliability i'd say 4stroke, but only skinny chas can get away with small 4 strokes, it'd have to be a 2stroke for the guy in question

[Carl_steveo]

For that weight I would suggest a 2 stroke so he still has some pull and enough speed to still have a laugh.

My Nsr is still capable of hauling my arse and I'm around that weight.
____________________
Current: Honda Nsr 125
Live: Sunderland
Luke "cant be arsed to read your post, but suck my balls anyway."

[UnspeedySam]

I suspected as much, although I'm biased as an RXS owner

Kawasaki KH125, Yamaha RXS100 and Suzuki GP100 are all pretty solid bikes aren't they?
____________________
Riding: BMW R1150RT `02 bought mildly crashed
Fixing: Also the BMW as I get less broken bits
Gone: ZZR600 '00, TRX850 '97, RXS100 '93, JS125-6B '07, BMW R1100RS '93, Kawasaki ZX-6R-J2 '01, Honda Bros NT400 NC25 '88

[Carl_steveo]

[UnspeedySam]

That's not all that hard from what I've heard about the NSR Have a friend who owned one about 10 years ago and had no end of problems with it. That and the insurance being much higher than a commuter 2 stroke is enough reason to stay away

That said, I would quite like to own an NSR as a second/third bike at some point in my life...
____________________
Riding: BMW R1150RT `02 bought mildly crashed
Fixing: Also the BMW as I get less broken bits
Gone: ZZR600 '00, TRX850 '97, RXS100 '93, JS125-6B '07, BMW R1100RS '93, Kawasaki ZX-6R-J2 '01, Honda Bros NT400 NC25 '88

[Carl_steveo]

I've never really had any major problems with it it's just my lack of maintanence lol. I'm taking more care of it now but I know if I toured on it that as soon as I got to France and the ferry left that my engine would go bang.

I love my NSR and don't think I could actually sell it.
____________________
Current: Honda Nsr 125
Live: Sunderland
Luke "cant be arsed to read your post, but suck my balls anyway."

[hmmmnz]

i can recomend the kh125,
surprisingly fast for an old girl
my 70's a1 model will do 130km/h (80mph) with out any mods
and with modified rotary valve is closer to 90

shame she doesnt stop very quick
____________________
the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[UnspeedySam]

I really like the look of the KHs, especially seeing as they have a front disc, so I bet they stop a bit quicker than my RXS. However they seem to be pretty hard to find.
____________________
Riding: BMW R1150RT `02 bought mildly crashed
Fixing: Also the BMW as I get less broken bits
Gone: ZZR600 '00, TRX850 '97, RXS100 '93, JS125-6B '07, BMW R1100RS '93, Kawasaki ZX-6R-J2 '01, Honda Bros NT400 NC25 '88

[Alex A]

I weigh about 16 stone, and had an XR125 (4 stroke) for 18 months and 12k miles. Wasn't especially fast, but never particularly underpowered for a/b roads. If I did it over again though, and had the mechanical know how and commitment I have now, I'd definitely go for a DT125 instead. It's a bigger bike too, so doesn't look at all silly with a big rider.
____________________
Current: Ducati Panigale R / Ducati Streetfighter S / Suzuki GSX-R1000 L5

[slyrob]

what's all this about unreliable nsr's? i think if you look after them (use castrol tts, change rings every 8000mls etc) you won't have any issues, i got mine as a non runner 6 months ago and after 2 days work to get running have had no single problem with it using it every day as a commuter and after its warmed up i don't treat it gently, in fact i would go as far as to say i rag the crap out of it. I also am around the 100kg/15.5 stone mark (tall not fat!) look on www.125ccsportsbikes.com at the nsr section general consensus is that the nsr is the most reliable 2 stroke around
____________________
Pitslayer wrote "it could be Ndubz.....ruining this once great place with donkey gobbling loafer knobbing "music".
silky666 wrote "In my eyes, when you shake cocks with the devil, you may as well go for the full reach around"
Villers wrote "as reliable as a ginger stepchild on smack"

[dextersaurus]

Get a Vtwin, like the hyosung if he's that size... big bike and will have the power there, and it's heavy anyway.

Or, get a crosser style bike.

Could of course get a CG, and be awesome...

dunc

[Spit-Fire]

slightly on, but off topic,

in regards to rider weight,
how much does being a relatively heavy bloke effect the handling of a sports bike?

and are racers required to lose weight if they are to heavy?,

i heard today on the gp that dani is 55 kg!,
that sounds like an amount to lift in the gym or that a short, slim girl would weigh rather then a grown man.
____________________
they say the good die young... i say we just live faster

[Alex A]

[skatefreak]

For the NSR's?
I'll put it this way, I'm thinking of buying an old 600cc engine to play with cuz my NSR hasnt missed a heart beat (and thats considering the abused state i got it, valve fixed open etc, was probably ragged to crap )...

That being said, as much as i could never let my NSR go really, am to happy with it, i could live without the extra monkey for insurance and 2t oil prices!

-Jvr

[temeluchus]

My KH100 was fine for me as was a 4 stroke GF125 that replaced it.

Both sat at 60 unless it was a steep incline.
____________________
Some shite cruiser. Now with guns and FREEDOM!

[G]

Weight does make a difference to suspension for cornering too - the bike has to got more weight around a corner while still keeping the wheels tracking over bumps. However in some ways it can make some areas easier too. It makes more of a difference in light bikes like the 125s.

If the budget allowed, I'd go for a reasonable 2 stroke 125.

Don't think any of the v-twins make as much power as the highest power 4 stroke singles. They also tend to weigh a load more to start with.

[27cows]

GP100s aren't tough. Motors don't last well, and the cycle parts are even worse than usual commuter fare. Can be tuned to go much faster than the chassis and brakes can handle, which is quite good fun, in between pistons shattering.

KH100 is really tiny - like a 50. The 125 is a good bike, pretty tough, but very prone to electrical problems in wet weather.

RXS100 - immensely tough workhorse, capable of easily carrying 25-30 stone (ideally as two people, rather than one ginormous fat bastard ). More reliable than any of the 4 strokes. Simplicity itself. Ideal to learn on, commute on, tour the Urals, learn the basics of home maintenance and rack up ridiculous mileage, so long as you're au fait with the Yam's quirks and foibles.

Can only be one choice really. Not that I'm biased or anything
____________________
The RXS100: vehicle of choice for Chuck Norris

[FURBAR]

I'm around, and about 17 stone, the raptor 125 seems a good bike for fattys ...
____________________
Fuk um !!

[ms51ves3]

[GSF Jamie 600]

[herulach]

The 2 strokes you've listed, don't have much more power than a CG/YBR etc.

I'm 15 stone and the YBR sits fairly comfortably at 55 with me in textiles, admittedly thats with a screen.

Weight isn't as big a deal with top speed as aerodynamics, so if he's tall it will be more of an issue.

Any kind of commuter type bike won't handle that well, so I wouldn't worry about it from that point of view.
____________________
YBR 125>FZS600

[slyrob]

i think you'll find that if you're prepared to ride the nsr/rs125/mito (nsr for reliability)without restrictions you'll get about 23-27 bhp which is clearly going to hammer any 125 4stroke my nsr tops out around 97 with less fat bastards making up to 110mph with a sprocket change. This means A-roads are not necessarily a case of being flat out all the time
____________________
Pitslayer wrote "it could be Ndubz.....ruining this once great place with donkey gobbling loafer knobbing "music".
silky666 wrote "In my eyes, when you shake cocks with the devil, you may as well go for the full reach around"
Villers wrote "as reliable as a ginger stepchild on smack"

[P.addy]

[stirlinggaz]

hi all,
seeing as no-one else has suggested it (i dont think), what about the honda varadero 125?
v twin motor, iirc & it went to a quite respectable top speed with me & my mate on it, though was a bit sluggish to start with.
one of the few 125's that doesnt look like a 125.
must be the biggest 125 i have seen (on a par with the hyosung gt)
thats about the only 4t i'd recommend, especially if your on the big side.
might find some of the race inspired 2t's a bit cramped?
but you cant beat the mito's/rs's etc for smiles though...
cheers,
GAZ