Posts by tag: Two Stroke

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Aprilia September 22, 2022 posted by

Featured Listing – Historic 1999 Aprilia RS250 Challenge Cup with just 664 miles!

Update 9.22.2022: John has updated his listing to note that despite the racing pedigree, this bike has only 664 miles (1,068km). He’s asking $12,500 and can be reached at john.mcleod3092@gmail.com. -dc

Today RSBFS reader John M. brings us a fantastic bit of racing history. The Aprilia RS250 Challenge offered a true one make race series celebrating what was essentially the last of the two strokes. And for the occasion, Aprilia ran off a batch of Cup bikes that were devoid of pesky D.O.T. goodies such as 17 digit VIN numbers, lighting, etc. These were bikes that were only intended for track duty. And this particular one raced… and won. The winning rider for the 1999 US championship series – on this very bike – was John Hopkins. If you are newer to racing, you might recognize John Hopkins’ association with the American Racing entry in the Moto2 world championship (supporting American riders such as Joe Roberts and Cameron Beaubier as a coach). If you have a bit more history with racing, you will know him as a WSBK Superbike competitor, a British Superbike participant, an AMA Superbike rider and a genuine MotoGP racer, having tasted both the 500cc two stroke era, as well as the transition to four strokes on both 990cc and 800cc machines. Today’s Featured Listing is the RS250 that John rode to the 1999 Aprilia Cup championship. This bike was also a winner with Aaron Clark at the help in the 2000 Daytona Race of Champions. And if that is not enough historical significance, the bike was built, fielded and maintained – and ultimately sold – by the legendary Team Hammer crew.

Historic 1999 Aprilia RS250 Challenge Cup Racer for sale with just 664 miles!

From the seller:
1999 Aprilia RS250 Challenge Cup Champion

Price: $12,500
Contact: john.mcleod3092@gmail.com

This is a 15-digit VIN Aprilia Factory Race Bike. John Hopkins (Hopper) won the U.S. Aprilia Cup Series Championship on this bike while racing for John Ulrich’s Team Hammer/ Roadracing World in 1999. Aaron Clark (of “Clarkie Tuono” fame) rode this machine to win the title at the Daytona ROC in 2000. The bike only shows 1068 KM’s / 664 miles.

I Purchase the bike from Team Hammer in 2002. It has been preserved in its original, glorious race-bike condition from when I received it 20 years ago. Although I start it and move it around a few times each year, It has not had any additional miles put on it since I acquired it (sans a stealthy ride around my old subdivision). It’s been properly stored inside my climate controlled shop. It’s a bit of a time capsule and I love it for that. I hope you will too.

More from the seller:
Being a factory, built-for-racing machine, it is not currently street legal. Original certificate of origin through Aprilia and Pro Italia Motors (Glendale, Ca) plus a bill of sale will be included in the transfer.

The sale includes all the spares and manuals that I received when I purchased it, please see the photos regarding those items. Original rear-stand included as well.

The bike is in very good condition. Essential, non-dispensable components like the frame and suspension parts are in great shape. There are minor scuffs on the right side bodywork and a very small spot on the lower of the two Arrow mufflers. In my opinion, they are just enough to give it some character without feeling the need to further repair. The bike is incredibly good looking.

I Could write a long dissertation about the history and features of the Aprilia RS250 Challenge Cup but I feel it’s safe to assume that if you are here, you already know!

More from the seller:
A bit about Hopkins himself:
During and after the ‘99 Aprilia Cup Championship he went on to compete in AMA 600 Supersport, AMA 750 Supersport (Champion), Formula USA Superbike, Formula Xtreme (Champion) and then of course, MotoGP, Including finishing fourth in points in 2007 with only Casey Stoner, Dani Pedrosa and Valentino Rossi ahead of him. Then World Superbike and British Superbike (where he racked up 5 wins). He was featured in the 2003 documentary film “FASTER” and later “The Doctor, the Tornado and the Kentucky Kid” in 2006.

It’s not every day that these bikes become available and for this one, it’s the first time in 20 years.
Here’s your chance to own a little slice of road racing history.

Go for it.

Price: $12,500
Contact: john.mcleod3092@gmail.com


This amazing piece of racing history and heritage is currently for sale. While we do see Challenge Cup bikes come up for sale occasionally (many being converted and masquerading as street machines), none have had the star power or provenance of this one. And who would imagine you could purchase a Team Hammer race bike through a Roadracing World magazine advert back in the day?! The best part is this isn’t some trashed or used up bike – when John M. peeled away some of the black vinyl covering up distracting elements of the dash (such as the speedo), the odometer only shows 664 total miles! This is truly an amazing find, presented in “as it was raced” condition. Interested buyers can contact John M. directly. Good luck, and thank you John for supporting RSBFS with such an interesting chapter of motorcycling history!

MI

Featured Listing – Historic 1999 Aprilia RS250 Challenge Cup with just 664 miles!
Yamaha September 13, 2022 posted by

Clean and Original – 1986 Yamaha RZV500R

If the RZ350 earlier this week didn’t wake you from your four stroke stupor, then perhaps another 150cc and 2 cylinders of even more smoking goodness can rouse your interest. In today’s post you will find what looks to be a museum quality home market RZ500 – the aluminum framed, restricted output, ultra rare RZV500R.

1986 Yamaha RZV500R for sale on eBay

Today’s bike looks like a museum piece or a time machine (without the flux capacitor, that is). The photography is exquisite, and it is a pleasure to view such a rare machine kept in this type of condition. Note that there are 7,000 KMs on the clock of this bad boy – which means that it accumulated approximately 4,500 miles to date. That is only 125 miles per year since birth. If we could all be so lucky!

From the seller:
1986 Yamaha RZV500R
Bike is in excellent condition with just only 4000 miles or 7000 km.
It still has the new frame protection stickers on each side.
100% original and untouched.
Bike is located in Lisbon – Portugal. Shipping can be arranged.

If you read the seller’s text, you will note that this beauty is NOT located in the States. That is not surprising, as not many RZV500R examples made it outside of the home market of Japan. This particular bike is located in sunny Portugal, which seems like it could be a perfect opportunity for that European riding vacation you always wanted to take. What could be better than tooling around the back roads of Portugal and Spain on such an amazing machine as this?? Keep in mind that if it is 100% original it will be restricted for home market use, so only about 65HP will be on tap. Still, I suspect most shoppers for this one will not plan to put too many miles on it for fear of damage; after all, it looks pretty near perfect in the pictures. Price is set for $25,000 USD with the seller open to offers. You can check out all of the details here. Good Luck!!!

MI

Clean and Original – 1986 Yamaha RZV500R
Yamaha September 12, 2022 posted by

Re-Californication: 1984 Yamaha RZ350

The Yamaha RZ350 was the last of the federally imported two strokes into the EPA-heavy state of California. With precise oil injection, the Yamaha Power Valve System (YPVS) to maximize efficiency, and air-injection and catalytic converters in the exhaust stream, this was the cleanest factory smoker on the planet in 1984. Sadly this was not enough for California, and the bike lasted but a year in that market. The RZ350 still sneaked through emissions in other states however, before Yamaha pulled the two stroke plug in America one year later. Today’s example is a nicely refurbed bike in California that shows some miles and a whole lot of care. I’ll let the seller pick it up from here.

1984 Yamaha RZ350 for sale on eBay

From the seller:
Yamaha RZ350L1984 Kenny Roberts Replica

The bike was purchased as non runner earlier this year. It had sat since last registration in 2016.
The bike ran when parked, but of course was parked for a reason!

Thousands have been spent to re-commision this lovely RZ. It starts first/second kick, pulls all the way to the red line and sounds as an RZ350 should. This will make a great rider, it does have some wear and tear which we have detailed. A good honest bike that just needs to be used and enjoyed. All the hard work as been done!, bid with confidence on this appreciating classic.

Clean CA title – currently registered.
15300 original miles.

More from the seller:
History: A considerable amount had been spent on the bike by the previous owner around 2015-2016 which, included engine work at RZ’s Unlimited of Glendale.

Work completed includes:
Crank Rebuild
New Crank Seals
New Pistons, rings
New water pump
Y Boot & K&N
Spec II pipes
Carb jetted to suit above
Telefix Fork Brace
Stainless Braided brake lines F&R
Penske – full adjustable rear shock with remote

An RZ350 owners manual is included along with a few old receipts, showing purchases of pipes, fork brace etc.

The RZ350 market remain a hot spot for bikes in clean condition. Prices are ever-so-surely climbing – especially for bikes in good or exceptional condition. This is not an NOS stock example, having been rebuilt and slightly hot-rodded with Spec II chambers and jetting. But in many ways THIS is the type of RZ you really want. Bikes that have been woken up by the cat delete and mild performance work are snappy and fun, being both lighter and more powerful than the museum correct examples. And with a relatively recent rebuild and some nice chassis add ons this RZ is ready to spread the popcorn sound of joy throughout the neighborhood and surrounding canyons. Nearly a week left at auction and the reserve has already been met, so don’t miss out! This bike is well presented and beautifully photographed. Check out all of the details here, and Good Luck!!

MI

Re-Californication: 1984 Yamaha RZ350
Yamaha August 27, 2022 posted by

Good From Afar – 1984 Yamaha RZ350

Just a quickie post on a potentially interesting mystery bike for your weekend reading and researching. It is listed as a 1984 Yamaha RZ350, and these are always fun bikes to post about. The fan base is rabid, and these are getting more and more rare as time passes. In today’s case the mystery is less about what the bike might be, and more about the condition. There are only the 3 pictures, and scant info from the seller. Still, with a price in the basement for the model – and the potential for some real upside in terms of what is on (or in) the bike – there is a lot of interest in this one.

1984 Yamaha RZ350 for sale on eBay

From the seller:
Runs great. Starts with one kick. Has sun fade. Gas tank is clean on inside but outside needs paint. Tires are old. Power wheelies in first and second gear.

Sure, it appears to be well used, if not a little beaten up. It also has a set of chambers, but no info on what else. There has been a lot of bidding thus far, and this one is definitely going to a new home at the end of the auction. You can check out all the details here. Good Luck!!

MI

Good From Afar – 1984 Yamaha RZ350
Yamaha August 19, 2022 posted by

1985 Yamaha RZ500 in Toronto

Here’s a really clean Yamaha RZ500 with less than 10k miles! We always celebrate the RZ500 on RSBFS because it was of course never officially offered in the U.S. and really represents one of the most collectible two stroke models of the era. The engineering and packaging represents the best of the industry in 1985 and is head and shoulders above more pedestrian sportbikes of the year. 37 years later, it still provides an amazing and powerful riding experience. This example is in Canada and the seller has identified a shipping company that will assist with the paperwork to the U.S. Good luck to buyers and seller!

Happy Friday, -dc

1985 Yamaha RZ500 for sale on eBay

From the seller:

Excellent Condition Turn Key 1985 Yamaha RZ500

8.5/9 out of 10 condition bike. Repaint / clear coat is in excellent condition.

Bike runs great – lots of power – sounds great – nothing beats two stroke smoke.

Two minor flaws – hairline crack (about 1 inch) at front fender and tiny chip touched up on white paint (both shown in pictures)

NOS stoneguard will go with the bike (not currently attached) – pictured

Mileage is 9,608 or 15,464 kilometers

Documented Rebuild of the motor by a two stroke specialist – minimal mileage since (stored in a collection and run periodically)

Aftermarket pipes – originals also come with the bike

Steering dampener added – other than that and the pipes the bike is stock.

Don’t buy a bike that needs work and wait – this is the one for your collection or reliving your hooligan youth!

1985 Yamaha RZ500 in Toronto
Sport Bikes For Sale August 12, 2022 posted by

Short and Quick: 2003 Derbi GPR 50 Grand Prix Replica

A bit of a fun one for your perusal. Famed small-bore manufacturer Derbi offered a line of 50cc GP racer replicas as street bikes. Different from the popular Yamaha YSRs, the Derbis were very nearly full-sized motorcycles – except for their engines, of course. This makes them excellent trainers for young riders looking to move up to a bigger bike in the future, and means that they are excellent toys for grown up kids who still love to zing a smoker up past redline occasionally. I’m too busy doing a crank rebuild on my Kawi AR50 to point fingers at anyone in particular…..

2003 Derbi GPR 50 for sale on eBay

From the seller:
DERBY GPR 50 in original as new condition. Has been stored in my climate controlled showroom since new with an occasional ride. 178 miles on the clock. These bikes are used in Europe by riders as young as 14 to train for GP racing. The engine is a 50 cc two stroke with electric start, oil injection and water cooling. Putting out 15 hp at 11,000 rpm and with the six speed transmission it has a top speed of 65 mph. They are originally sold as restricted to 30 mph, this one is unrestricted. GPRs are almost the size of a typical sport bike and are suitable for anyone up to around six feet tall. This bike is sold with the original factory certificate of origin, see photo, and a bill of sale.

These are legitimately fun bikes that are also legitimately rare. The limited capacity and performance keeps them off major roads and highways, and also limits the value appreciation factor. Bad news if you are hoping this will appreciate like an RZ350 or 500. Good news if your man cave is dying for something to fit perfectly into that corner, and can come out for some street hooning or karting track day fun on a sunny day. Not many days left on this one (will be gone by the end of the weekend) and the high bid is less than $2500 bucks, but there is a reserve in place which could spoil the party. Something this much fun is always worth a look, which I thoroughly encourage you to do (besides, I don’t want to be alone in my tiddler obsessions). Check out all of the details here, and Good Luck!!

MI

Short and Quick: 2003 Derbi GPR 50 Grand Prix Replica
Suzuki August 9, 2022 posted by

1986 Suzuki RG500 Gamma with Rick Lance upgrades

This RG500 is up for auction a second time after a failed listing that is described in the seller description. Unfortunately it’s unlikely you’ll be able to title the bike in California. The seller states it has a Florida title which should transfer in most states. Bidding is over $22k at this point and reserve is met. Good luck to buyers and seller in the remaining 5 days of the auction!

dc

1986 Suzuki RG500 for sale on eBay

from the seller:

I brought the bike up to Rick Lance in 2015 and had him redo the suspension with his own shock and ride height adjustment link. The front forks were also rebuilt. It is setup for bigger guys over 200 lbs. Also, his clutch kit, his petcock kit, and his air filter kit were installed to replace the old ones.

It is in beautiful shape. It does have an aftermarket belly pan and an aftermarket upper fairing. Rick wasn’t sure who the manufacturer was but he said it was high quality. The stock pipes are in beautiful shape.

Rick commented that the bike rides incredibly well. In fact, he told me it was in his top 10 best riding Gammas. The motor has not been opened.

The current mileage equates to 13,021 miles. I have only ridden the bike 30-40 miles since Rick worked on it.

The bike has been sitting for a few years. The fuel was removed. It has been leaking a bit of 2 stroke oil. It needs the oil check valves replaced. There are a couple ways to do this. You can add check valves inline or replace the ball valves in the carbs. Both Lance Gamma and RG500 have them. I was going to bring it up to Rick and have him replace them, but unfortunately he passed away in 2019. His shop was bought out and now is in California, so it’s not easy for me anymore to bring the bike to have it worked on anymore.

I do have the stock air box. I have a repair manual. I do not have the old suspension parts that Rick took off.

1986 Suzuki RG500 Gamma with Rick Lance upgrades
Honda July 25, 2022 posted by

Never Simple – 1986 Honda NS400R

The story of Honda’s two-stroke GP championships is almost as complicated as their two stroke road bikes’ history.  This example looks to have been spared too many previous owner’s antics, with just over 7,000 miles and very good looks.

1986 Honda NS400R for sale on eBay

While some manufacturers developed “square” four-cylinder engines for Moto GP, Honda kept things to a single crankshaft and passed a lot of the NS500 developments to the NS400.  The littler V-3 was easier to license and still packed 72hp into a tidy package.   Like the racer, an automatic exhaust valve extended the torque spread and light alloy chassis put a sharp edge on the handling.  Drilled 256mm disk brakes get you down to corner entry speed, and the staggered 16-inch front and 17-inch rear Comstar wheels help keep the dry weight to 359 lbs.

The shorter riding season in western Mass. has helped keep the mileage on this NS400R low, with the Freddie Spencer era livery and except for conformal signals, stock appearance.  No word on how many links in the chain of custody, but a low speed low-side looks to have educated one of the previous owners.  Comments from the eBay auction:

The holy grail of Honda motorcycles. If you don’t know what you are looking at, this is a two-stroke race bike built for the street. This bike is the highest displacement road going two-stroke Honda ever produced. Also this bike has many firsts for Honda including a very potent W-3 400cc two stroke water cooled engine and also the first all aluminum lightweight box section frame.

This bike still has its original stock pistons and the fuel tank has no rust inside it whatsoever. To make this bike even more collectable this particular bike is the HRC version that was designed for North American markets only, but none of these were ever sold in United States. The EPA determined at the last minute that these bikes were polluters and violated the Clean Air Act, so none of these were sold as new in the US.

This bike has title originating in Canada and I have the clear title in my name transferred to Massachusetts.

The GP rule book favored two-strokes and as much as Honda wanted to race what they sold, the NS500 and NSR500 V-4 kept Honda in the championship running until the formula changed to a liter four stroke.  The CR500 single was on the other side of the showroom and had more power, but only on dirt.  Bidding is active on this no-reserve auction – take a look – !

-donn

Never Simple – 1986 Honda NS400R