Comments on: New from the Two Stroke Shop – 1100cc Triple!

By: Joshua Gibson.

Joshua Gibson. — Mon, 20 Jun 2011 18:39:51 +0000

I have always been a massive 2- stroke fan since my first kx 80, and as I get older I am looking to get back to it but I want to create an on/off road single seat Kart/Buggy with the largest possible 2- Stroke plant I can fit to it.
I will build the frame to suit my equipment however I am wondering about the pro’s and con’s of choosing between somthing like a Kawasaki 750 H2 triple or a cr or kx 500 single or a rotax ??????

maybe two cr engines one to drive the front wheels and one for the rear
running in series with a simple twincylinder carby setup ?

Would injection work ?

I guess my question comes down to engine weight will a cr500 single be dollar for dollar , and weight for weight the best choice in your opinion ?

or is it worth going for the slightly heavier multi cylinder configuration
for the extra horsepower ?

also with either option is supercharging/turbocharging, or both a realistic option for what I am proposing ?

also with a relativly large portion of suspension travel being proposed, what do you think about options for my driveline …..chain ?……belt ? uni-joint style ?

I would appreciate your thoughts as I can see that you guys are obviously on top of your shit when it comes to chook chasers.

nice to see some cairns blokes leading the way.

cheers,

Josh.

By: Dave

Dave — Tue, 24 May 2011 09:32:47 +0000

Hey Andy Jones

6.35 am WOW …did u wet the bed ?

thx for your opinion on the WR500SM project

Do you employ this mindset when looking for girls as well ?

I would love to ride a bike that only had its front wheel on the ground when cornering – sounds like alot of fun LOL

good luck with your 4 strokes

: ))

By: Andy Jones

Andy Jones — Mon, 28 Feb 2011 11:35:32 +0000

Hello steve-In my humble opinion the concept of a large twin cylinder 2stroke being used for motard racing is not necessarily workable.The ability of a two stroke to transmit its rapid rate of acceleration of engine rpm ,and thus rapid power increase;to the road -is dependant upon consistent grip levels.In motocross the two stroke engine characteristics can be used, by learning how to graduate the engine’s ability to ‘dig into’ the completely pliable dirt track surface-yet the lack of consistent traction in motard tracks is of a different nature -being based on depleted surface grip from various coatings on top of a hard base.The technique of moving the back wheel and front wheel around in corners does rely upon relative controllability of speeding up AND slowing down of engine rpm.Two stroke engines do not have this inherently lazy nature of graduation in rpm variation both speeding up And slowing down; A characteristic of some significance to the riding techniques involved in motard sport.Please prove me wrong by going in a motard race and lapping the field with one of your bikes.I really think it is an engine for roadsport usage though. In the 1985 season I rode a Yamaha RZ350r to race tracks around Australia AND COMPETED IN MANY CLASSES OF RACING on that same bike-THEN-at the end of each weekend’s racing packed up/put the lights back on and rode home -sometimes as far as 2300kms.Once I started on the front row of a 350cc Australian Grand prix race at Phillip island on my bike-which remained totally standard and eligible to compete in production racing-so feel qualified to comment on the way to ride these twins. Regards AJ#85

By: The General

The General — Wed, 29 Apr 2009 00:40:11 +0000

Here is a letter that I received from Steve over at The Two Stroke Shop. Those guys are so cool! Let them know if you have any great ideas for two stroke wonders.

“Hi John,

Love your site. Some great articles on there, especially the one that
exposes the old EPA chestnut. Good on you man! You write well.

And this is exactly the fighting spirit that so many of our customers
exhibit, there are dozens of them in the US figuring out ways to get their
RS500s road titled … Endlessly devious, crafty ways. I love it!

The more that time goes on and the more mail I get about our 1100cc triple
monster, the more I realize that in fact, the RS500 most likely will not be
our biggest product. Because they were never road-homologated in the States,
whereas the ZX-10R is, and therefore there’s more of a basis for flying
under the radar so to speak.

And for sure, there are worse enviro-social ills than a few two-stroke
bikes! Just try asking a trucker how much engine oil he burns on a trip
across America, not to mention all the Nox and puthering clouds of carbon
… And the whole global warming thing is just a scam anyway.

You may well be interested in our next project, which is to take a Yamaha
WR450F, and haul out the offensive single-cylinder hit-and-miss four-stroke
junk motor out and in its place put one of our TSS500 motors. We envisage
this bike as a Supermoto, indeed we believe there’s nothing whatsoever
‘Super’ about a single-cylinder four-stroke dirtbike with street rubber.
Those things are lame, lame, lame, and they only even ‘appear’ quick in the
tight single-track, or on go-kart tracks. We will call this new bike the
WR500SM, and it will be more fun than being thrown to a dozen supermodels
covered in chocolate. This will be the world’s quickest Supermoto, and with
dirt tires fitted it will clean up the field.

Yes, we believe the world deserves bikes that are Light AND Fast, and
Durable.

Attached is a piece about us that was published recently in the UK’s
Motorcycle News.

By the way, we are open to suggestions of alternative bikes for conversion
to TSS 500SM status. The idea of course is to pick a bike that is as popular,
there are a lot of around, therefore opening up potential applications for
the kits.

Cheers!
Steve”

The Two-Stroke Shop
http://www.twostrokeshop.com

9 Compass Close, Edge Hill
Cairns, Queensland 4870
Australia

Tel. (In Australia): 0427 774 285
Tel. (Outside Australia): +61 427 774 285