Posts by tag: Two Stroke

Honda July 22, 2016 posted by

Grand Prix in Miniature: 1993 Honda RS125 for Sale

1993 Honda RS125 L Side3

Growing up, my only experience with two-strokes was in leaf blowers: I didn’t ride dirt bikes, and two-stroke sportbikes were long gone by the time I got into motorcycles. A thudding v-twin sounds like sex, and the technology that allows a four to scream to 16,000rpm boggles my mind while the noise makes my hair stand on end. But the tinny snarl of a two-stroke engine? Basically it reminded me of Sunday morning hangovers…

But I’m an adult, and adults can admit when they’ve been wrong about something. And I really want a two-stroke race bike like this Honda RS125.

1993 Honda RS125 Rear Wheel

Of course, there are problems with my revised worldview. First of all, I’m a bit too big for something like this: an RS125 weighs something like 160lbs, meaning I weigh more than the bike, and my 6’2” height means it might be a little bit… Cramped, to say the least. That’s not so say that larger riders can’t ride them. It’s just that 180lb rider needs to be very careful about body positioning as their weight will more dramatically affect handling than it would for a smaller rider. In the plus column, their light weight means 125s crash better than heavier bikes...

1993 Honda RS125 L Side Rear

The RS125 wasn't based on a road bike: it was a pure racing machine, an entry-level, over-the-counter tool that professionals and privateers could order from Honda to cut their teeth on in wheel-to-wheel competition. Powered by a liquid-cooled, two-stroke single with nearly square dimensions of 54mm x 54.5mm and backed by a 6-speed gearbox, the bike was good for 32hp and a 130mph top speed with the rider flat on the tank. Very, very flat on the tank...

Riders like Loris Capirossi and Dani Pedrosa got their starts racing RS125s, and if it was good enough for them, it's good enough for you, or your kid to go racing.

1993 Honda RS125 Dash

From the original eBay listing: 1993 Honda RS125 for Sale

Original Honda Grand prix racer RS125.

Hard to find and very fast !

Please see picture for more detail.

Bike runs, (not race ready Not race for 20 or more year)

Will ship worldwide.

1993 Honda RS125 Tank

The starting bid is $5,000 and there are no takers yet, with five days left on the auction. This example is a little rough around the edges, but those bare plastics just mean you can get wild with graphics, replicate your favorite historic racing team’s colors, or just leave them bare. The listing is very spare, which is a shame, since it'd be nice to know about the bike's maintenance history and any parts that come with it. These are racebikes, and you’re unlikely to find what you need to tune and maintain them at your local Honda dealer, so included spares are a big selling point.

And that's really the issue with two-stroke sportbikes of this era in general: spares are getting thin on the ground. I'd expect that, at some point, someone will start making parts for them as two-stroke sport bikes of this era are becoming more desirable but, until that happens, be sure to do your homework if you plan to do more than display your RS125.

-tad

1993 Honda RS125 R Side

Grand Prix in Miniature: 1993 Honda RS125 for Sale
Yamaha July 17, 2016 posted by

V4 Race Replica: 1985 Yamaha RZ500 for Sale

1985 Yamaha RZ500 R Front

Like any market, collector car and bike values can be difficult to predict, which is why they call it “speculating.” Sure, that Anniversary Edition Corvette looks pretty sharp in a giant, plastic wedge kind of way, but will it ever be valuable enough to really justify squirreling away one instead of driving it? The same holds true for motorcycles: at the time, who would ever have expected the Yamaha RZ500 to be so much less sought-after than its direct competitor, the Suzuki RG500 Gamma?

1985 Yamaha RZ500 L Rear

On paper, the two bikes share a similar mission and specifications and both have their engine as the centerpiece: shared with no other bike in either company’s lineup, the Yamaha used a 50° V4 two-stroke and the Suzuki used a square-four two-stroke. Both were meant to mimic their respective company’s GP race bikes’ configurations and made similar power: 88hp for the Yammie and a claimed 94hp for the Suzuki. Both had paired cranks and a whole host of sophisticated engine and suspension trickery, with the Yamaha using their YPVS power valve system to boost midrange torque.

1985 Yamaha RZ500 Rear Wheel

Frame on the RZ500, known as the RD500LC in some markets, was made of steel, although the Japanese market RZV500R used a lightweight aluminum frame. Unfortunately, that bike was restricted in terms of power to 64hp, so any performance advantages, at least in a straight line, were muted. And now we’re getting to the root of the problem. Basically, Yamaha hedged their bets to make the RZ500 more accessible to the average rider, watering down their “GP bike with lights” to increase appeal: a balance shaft smoothed the raucous engine but added weight. The steel frame kept pricing down, but once again: increased weight. At 452lbs dry the RZ outweighed the RG by a staggering 80lbs.

1985 Yamaha RZ500 Clocks

Period reviewers were quick to praise the raw, authentic feel of the Suzuki compared to the more civilized Yamaha. And for racing fans looking for a connection, however tenuous, to the prototype racing machines being raced by their heroes, those pounds and the lack of edginess matter.

From the original eBay listing: 1985 Yamaha RZ500 for Sale

This bike is in possession of the coveted California Registration. I did start it, sounded good, but 2 of the cylinders were over oiling, and 2 of the carbs started leaking, so I shut her down.

This rare bike needs a new owner and a little TLC.  

1985 Yamaha RZ500 Front Wheel

But just because they don’t command quite the rabid following as the Gamma doesn’t mean the RZ isn't a blast to ride, or cheap exactly. Prices have been rising recently, as they have with all two-stroke sports motorcycles, although this one hasn't attracted much attention yet at the $9,000 starting bid. This example isn’t perfect, obviously, and will need those engine issues sorted before it's ready to go. Some minor blemishes mean you can feel comfortable hooning your bike without fear of violating a pristine collectible, because even though the RZ might be less racy than the Gamma, don’t think it doesn’t provide two-stroke race-rep thrills for children of the 1980s.

-tad

1985 Yamaha RZ500 L Front

V4 Race Replica: 1985 Yamaha RZ500 for Sale
Suzuki July 7, 2016 posted by

Just a Pup: 1986 Suzuki RG250 Walter Wolf for Sale

1986 Suzuki RG250 WW R Side Front

Looking very much like a little brother to the RG500, this Suzuki RG250Γ offers up sophistication to match its larger stablemate: anti-dive forks, Full Floater suspension, Suzuki's Automatic Exhaust Control that increased the weedy two-stroke midrange, and a six-speed gearbox. The package was very light, weighing in at 286lb dry and the water-cooled 247cc parallel twin came restricted to 45hp from the factory, although more was available with tuning.

1986 Suzuki RG250 WW Rear Wheel2

Available between 1983 and 1987, this generation of the RG250 was available in traditional Suzuki white and blue, but the dark blue, red, and gold Walter Wolf colors seen here are especially striking, and those proprietary gauge faces look very trick. Born in Austria, Walter Wolf's name can be found on both the RG250 and RG500. Wolf made his fortune in the Canadian oil business and sponsored racing cars and bikes in the UK.

1986 Suzuki RG250 WW Clocks

This particular example is very clean, with little pitting on the aluminum parts, although there is some rust on the steel subframe and brackets visible. Unfortunately, the bodywork, while complete, has some bad cracking around the headlight and scuffs and scrapes from a lifetime of riding. Some of the decals have peeled so folks might think you're riding a "S 7UKI" and the paint on the tank is in poor shape. Mechanically, the bike is claimed to be in excellent condition.

1986 Suzuki RG250 WW R Fairing

From the original eBay listing: 1986 Suzuki RG250 Walter Wolf for Sale

1986 Suzuki RG250 Walter Wolf  version very rare to find one titled in the United States . This bke was brought from Japan with a U.S. service man in 1990 it is completely documented with all the custom papers and has a clear title . Good luck finding another. The bike starts one kick and runs and handles perfect. The plastics have some issues but are very restorable. I have some nos. Suzuki parts that go with bike new gas cap. new factory grips service manual and a few other Suzuki factory parts that will go with bike.  10927 kms, not miles.

1986 Suzuki RG250 WW Tank

There is no interest yet at the $3,000 opening bid, and the seller has set the Buy It Now price at $6,000. Walter Wolf Gammas come up for sale occasionally, but this is only the second 250 I've seen for sale: they were never common, and are especially rare here in the US. This one needs some cosmetic attention but, considering the rapidly escalating value of two-stroke sportbikes in general, it could be a great rolling restoration for someone living in a state with a permissive DMV.

-tad

1986 Suzuki RG250 WW R Side

Just a Pup: 1986 Suzuki RG250 Walter Wolf for Sale
Suzuki June 8, 2016 posted by

Table for One: 1988 Suzuki RGV250Γ SP for Sale

1988 Suzuki RGV250 SP R Side
Fresh off the boat from Japan, this Suzuki RGV250 Γ "Gamma" is the higher-spec SP model that featured fully-adjustable suspension, along with a close-ratio gearbox and a dry clutch. 1988 was the first year of the RGV that replaced the parallel-twin of the RG250 with a new, 90° 249cc v-twin engine that also found its way into the Aprilia RS250. Designated the “VJ21” this first-generation RGV used Suzuki’s sophisticated aluminum beam frame, but lacked the later bike’s stacked exhaust and sexy banana swingarm that allowed space for that bike’s bulging expansion chambers.

1988 Suzuki RGV250 SP L Side Front

The complete package made around 50hp and weighed around 282lbs dry, so performance is deceptively good, considering the relatively small displacement. But more importantly, these machines are notoriously high-strung, requiring real effort to extract the modest power and skill to take advantage of that light weight and nimble handling. The result is performance that can embarrass more powerful machines on track and on the road when used properly. For Real Riders™ this kind of involvement is critical to the motorcycle experience and makes for epic David vs. Goliath stories shared over lunch.

1988 Suzuki RGV250 SP Clocks

This bike also features a solo tail section, which at first seems a shame. I mean, what rider doesn’t dream about taking some hot, young thing on the back for a midnight ride, the capstone of the typical motorcycle fantasy? But sexy as they may be, sportbikes are generally impractical for taking passengers and, considering the RGV250’s tiny, tiny size, maybe it’s best that this is a rider-only machine...

1988 Suzuki RGV250 SP L Side Rear
From the original eBay listing: 1988 Suzuki RGV250Γ Gamma SP for Sale
Up for auction is 1988 Suzuki RGV250 Gamma SP Model. SP Model has adjustable suspension, close ratio transmission, and this one has custom racing single seat. It just arrived from Japan. All electric works, engine, brake, suspension work too. Only needs tire: getting old so needs new one. Have a short movie on YouTube.
Got paper work you need to register but don't know how much do you need. Please check your local DMV. Odometer shows 3124km (about 1952.5 miles) but seems like too low, I assume it has been replaced? Don't know but it goes 1000 to 1100rpm. Right side plastic has crack but it has been fixed. 
The seller also helpfully includes a clip of the bike starting and running. The bike is in generally decent condition, although that solo tail is obviously not the original part, and the stock piece appears to be long-gone. Aesthetic choice or crash-repair? Many of these sat outside in their home market: garage space is at a premium in Japan. And build-quality was never all that high for these quarter-liter sportbikes, so most of these making their way here will need some cosmetic attention.

1988 Suzuki RGV250 SP R Side Rear

There’s still plenty of time left on the auction, with a $4,300.00 starting bid and no takers as yet.  Those two little letters “S” and “P” mean it should prove popular among collectors and folks who live in places where registration entails nothing more than a duly-appointed state representative looking at your ride and saying, “Yup. That’s a motorcycle.” It's not a dead-stock museum-piece, but I expect that'll be reflected in the final selling price, so someone may get a good deal on machine that's very rare here in the US.

-tad

1988 Suzuki RGV250 SP L Side

Table for One: 1988 Suzuki RGV250Γ SP for Sale
Aprilia June 1, 2016 posted by

The Usual Fantastic – Aprilia RS250 2003 Final Edition in Japan

Early 2000's the two-stroke open range was contracting, MotoGP rulemakers made the 500cc two-strokes obsolete, and the EU's transition from Euro2 to Euro3 basically cut allowed emissions in half.  Aprilia's successful line of small bikes, which had brought them 1990's championships in Moto1 and Moto2, were breaking camp.  The company produced a Final Edition of the RS250 in 2003 with special graphics and the bike's usual ( fantastic ) performance.

20160601 2003 aprilia rs250 right

Aprilia RS250 2003 Final Edition ( Japan ) for sale on eBay

20160601 2003 aprilia rs250 left

20160601 2003 aprilia rs250 right front  20160601 2003 aprilia rs250 right rear

The RS250 is based on a carburetted Suzuki single of 249cc, and with Aprilia's own ECU, cylinders, and exhaust makes 55 hp.  The torque graph is a little peaky though, with most power available above 8,000 rpm.  Aprilia's twin spar frame is a work of art, the thin-walled stampings welded to magnesium alloy steering head and connector castings, supporting a similarly fabricated ( and beautiful ) banana swingarm.  Forks are 40mm Showa upside-down, dual-adjustable, and the Sachs monoshock is triple-adjustable.   Brakes are over-spec, twin 298mm discs in front with four-piston calipers, and 220mm rear.  Bodywork and appointments are sporty to the point of uncompromising, and if you're not busy trying to go fast, you'll find time to be uncomfortable.  The RS250 saves weight using only a kick-starter, but does give you a full-featured instrument panel.

20160601 2003 aprilia rs250 right fairing  20160601 2003 aprilia rs250 left front

20160601 2003 aprilia rs250 right front wheel  20160601 2003 aprilia rs250 left rear wheel

Coming out of what appears to be a Japanese dealer, this RS250 appears to be in nice shape, with only a few rubs on the rainbow stripes.  Coming up on 5,000 miles which is about half-life for the top end and probably ready for a power valve cleaning.  While the pictures aren't hi-res, they don't show evidence of damage or modification.  Interesting that the owner offers free shipping ( to a port ).  From the eBay listing:

Very rare 2 stroke motorcycles from Japan to the world!!
And Shipping cost is FREE!! (from our office to port near your place)

Aprilia RS250 Later model
VIN; ZD4LDA0003S104576
Year: 2003
Mileage: 8,020 km
Condition : Mint condition. It has tiny scratches on the body work.
Engine condition is very very well.

20160601 2003 aprilia rs250 front  20160601 2003 aprilia rs250 left peg

20160601 2003 aprilia rs250 right seat  20160601 2003 aprilia rs250 right peg

Though 250cc two-strokes would remain legal in Moto2 until 2009 and brought Aprilia championships in 2006  and 2007, the bell had tolled for the road bike.  The ask seems high but these were very expensive when new, exquisitely built and lightning quick.  Though road registration would likely be a trial, this would make an outstanding track day machine...

-donn

20160601 2003 aprilia rs250 right

The Usual Fantastic – Aprilia RS250 2003 Final Edition in Japan
Aprilia May 27, 2016 posted by

Super Lite – 2006 Aprilia RS125 in Norway

Restyled to be a dead ringer for Aprilia's liter sportbike, the RS125 is designed and equipped like a larger track weapon.  From the lands of progressive licensing, it brought box-section frame and swingarm, upside-down forks, and four-piston calipers to aspiring riders.

20160526 2006 aprilia rs125 left

2006 Aprilia RS125 ( Norway ) for sale on eBay

20160526 2006 aprilia rs125 left front

20160526 2006 aprilia rs125 left rear

Aprilia's two-stroke single is a known quantity, winning Moto 3's since 1992, this time with Dell'orto carburetor and electronic ignition.  The resulting 28 hp is mostly available north of 7,000 rpm, though a computer-controlled exhaust valve aims to maximize lower rpm output.  40mm inverted forks and rising-rate rear monoshock are fully adjustable. Radially mounted front caliper is over a big 320mm rotor, but just one, with 220mm rear.  Expansion chamber exhaust is a must, and this bike has been treated to the Arrow titanium.  Wheels are y-web light alloy if not forged.

20160526 2006 aprilia rs125 binnacle

20160526 2006 aprilia rs125 left peg

20160526 2006 aprilia rs125 left rear wheel

Hard to complain about our locally short riding season when you read about a bike from Oslo, Norway, and with a little over 10,000 miles, this owner has spent some time riding and caring for this bike, as he relates in the eBay auction:

New restored and everything is working properly 100%. Trim setup is mounted is arrow power plant plus rave 2 valve, additionally dyset the carburetor so it gets more gas under higher engine speed of approximately 6000 rpm and upwards. Things that have been made and purchased new. polished frame, new flashing light that is led light in Carbon brake pads front and rear, rear gear, new chain and in addition, it has been the main service and changing engine oil, coolant, brake fluid and spark plugs. It has been laid right in the room temperature, and appears to be rare and exemplary.

20160526 2006 aprilia rs125 left house

20160526 2006 aprilia rs125 left exhaust

20160526 2006 aprilia rs125 right rear wheel

Out of production since 2012, when Moto GP changed their formula to a 250cc four stroke, the Aprilia was half-again as costly as its competitors, and this bike's ask is just about MSRP.  But if you had a track endeavor, this would be a dynamite starter or pit bike.  Plain vanilla compared to the many factory replicas, this RS125 appears undamaged, lightly updated and maintained.  Leaving it to you to coordinate with your summer fjord cruise line to carry this baby from Oslo back to Southampton, where it'll be as easy ship home...

-donn

20160526 2006 aprilia rs125 sunset

Super Lite – 2006 Aprilia RS125 in Norway
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