Factory NSU Car Power: 1971 Münch Mammut 1200 TTS

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This 1971 Münch Mammut (Mammoth) is one of 478 NSU Prinz-engined bikes built, around 220 of which are known to remain. Built to order around the small German car’s lightweight, air-cooled, rear-mounted OHC four cylinder, no two Mammuts are exactly alike, and this one is particularly interesting for its use of an 85-horse 1200cc version–most came fitted with 1000cc units making about 30 hp less. Despite their physical size and gawky (but endearing) looks, these bikes weighed a reasonable-for-the-day 485 pounds, and in 1200 spec were capable of hitting 100 mph in around 10 seconds. Handling was decent as well, thanks to a Norton-style frame, and reflecting their high price and exclusivity, Mammuts were packed full of interesting features like an oil bath chain case that doubles as the swingarm’s left half. This one looks great, and is described by the seller as being in “near new and pristine condition.” Find it here on Gallery Aaldering in Brummen, Netherlands for 157,500 euros (~$183k USD today). Special thanks to BaT reader Kyle K. for this submission. Described in the ad as a “Kraftfahrzeugmechaniker” or motor mechanic, Friedrich Münch was born in 1927, served as a technician in the Luftwaffe, and in 1948 opened a Horex motorcycle shop. He then designed a series of bikes utilizing Horex parts, but when a friend introduced Münch to the NSU Prinz’s engine, development turned towards the Mammut. While today we’d call it a superbike, in the late 1960’s and early 1970’s this kind of spec was simply mind-blowing. From the rear everything looks fairly conventional but appearances can be deceiving. Aircraft-quality Elektron magnesium alloy was used for the mudguards, swingarm (incorporating a structural oil-bath chain housing on the left), fork bridges and footrests. Interestingly, wheels often failed when their spokes were stripped from their housings due to the engine’s torque–additionally, rear tires could be expected to last as little as 100 miles. Here’s what makes the Mammut; an air-cooled, sohc 200cc inline-four sourced from NSU and capable of propelling the big bike to 60 mph in around four seconds. Modifications included fitting a new gearbox and clutch, as well as reworking of the engine’s sump, carburetors and exhaust. Check out the Münch branded gauges. The odometer clearly displays the claimed 5007km, and for those who are curious 250 kp/h is roughly 155 mph.

No Reserve: 1967 Ducati Monza Junior

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This 1967 Ducati Monza Junior was reportedly placed in storage by its original owner in 1968 after three unsuccessful attempts to pass the Wisconsin motorcycle license test. The bike was parked in a barn until the passing of its 87-year-old original owner, and was acquired by the seller six months ago with 444 indicated miles. This Monza features a 156cc OHC single with a 4-speed transmission and is sold with a clean Wisconsin title in the seller’s name. The bike has reportedly not been cleaned since removal from the barn, wearing over 50 years of dust as well as corrosion on the red paint and chrome. The seller reports that the inside of the fuel tank appears clean and the period Pirelli tires hold air. Accessories include a tail rack, frame-mounted crash guards, Ducati script foot pegs, and Silentium muffler. Instrumentation consists of a headlight-mounted speedometer, two warning lights, and a 5-digit odometer showing 444 miles. The factory-supplied key can be seen in the ignition switch. The 4-stroke 156cc single features an overhead camshaft driven by a bevel gear and originally produced 9.5 horsepower. The seller notes that the engine turns and shows compression, but no attempt has been made to start it. Power is transferred through a 4-speed transmission with a right-side heel and toe rocker shift lever. Prior records are unavailable.

1968 Simson Spatz SR4-1

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This 1968 Simson Spatz SR4-1 has been in the seller’s collection for 9 years and used sparingly. Produced in East Germany and sold new in West Germany, little is known of the early history but the current mileage is 571KM (354 miles) of which the seller has added less than 10 miles. Powered by a 50cc two-stroke single with a two speed transmission, the seller reports that the bike has been well maintained by his personal mechanic and is mechanically sound. This Spatz is sold with a clean Indiana title in the seller’s name. The Spatz or “Sparrow” was produced in the city of Suhl in East Germany and offered from 1964-70. Finished in a deep red and grey two tone, the finish is believed to be original and shows several chips and scratches as well as some age related corrosion. An optional tail rack is fitted, and a minor tear can be seen on the left side of the seat. The wheels also have some corrosion on the spokes and wear older tires. Due to licensing restrictions in West Germany, bikes distributed to the West were marketed as mopeds and sold without a horn or battery. The horn was replaced with a bicycle bell and a 15 watt headlight was fitted that could be run from engine power. The odometer indicates 571KM (354 miles) which is believed to be accurate. The 50cc two stroke single was limited to 40km hour (25MPH) for the West, and is coupled to a 2-speed transmission. The Spatz was fitted with either pedals or a kick starter and this example is fitted with the latter. The seller reports that the bike is fully functional and all necessary work has been performed by the seller’s personal mechanic. The fuel tank shows age related scratches, and the cap commemorates the Silver Vase awarded to the Simson team during the 1964 International Six Days Trial.

1977 Honda CB400F

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This 1977 Honda CB 400F was refurbished in early 2018 with repainted bodywork, seat reupholstery, new decals, and an engine rebuild with refinished cases and new rings, gaskets, and seals. The bike is powered by an air-cooled 408cc transverse inline-four and a 6-speed manual transmission, and features include foam element air filters and a 4-into-1 Kerker exhaust. This CB400F has been with the selling dealer for a year and shows 4,400 miles. It is offered with over $9k in receipts for the build and and a clean California title in the owner’s name. The tank and side covers were repainted in yellow under new decals, the seat was rebuilt with new foam and a replacement cover, and the forks were overhauled with new oil and dust seals. Stock 18″ wheels wear new Pirelli Sport Demon tires with fresh tubes. The steering head bearings, handlebars and grips were replaced. Controls and gauges are shown up close in the gallery below. The odometer indicates just under 4,400 miles. The 408cc SOHC four features four 20mm Keihin carburetors and produced 37 horsepower in stock form. The cases were refinished and the engine rebuilt with new rings, seals, and gaskets in early 2018. Features include foam air filters and a 4-into-1 Kerker exhaust. Power is sent to the rear wheel through a 6-speed transmission. The swingarm bushings were replaced and a new chain installed during the rebuild, records from which are viewable in the gallery

1967 Triumph TR6R 650 Trophy

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This 1967 Triumph TR6R 650 Trophy is powered by a 650cc parallel twin with a 4-speed transmission and has been modified with a frame-mounted oil cooler and twin leading-shoe front brake. The bike was recently acquired by the selling dealer, who has since added less than 10 of its 18k indicated miles. A tune-up was reportedly performed in the past nine months. This TR6 is sold with manuals, a parts book, partial records, a maintenance log from the previous owner, and a clean New Jersey title. The 3.5-gallon tank wears the correct parcel grid and is finished in Pacific Blue and white with chrome trim and fenders. Aftermarket features include bar-end mirrors and a headlight screen. Chromed wire wheels wear Avon Road Rider tires, and the bike has been updated to feature the ventilated twin leading-shoe front brake assembly introduced for 1968 models. Instrumentation consists of a speedometer, tachometer, and headlight-mounted ammeter. Just under 18k miles are indicated on the 5-digit odometer. Low-rise European-spec handlebars and a factory steering damper are fitted. The 650cc parallel twin features a single Amal Monobloc carburetor, aftermarket oil cooler, and 4-speed transmission shifted on the right. Stock compression was raised to 9.0:1 for 1967, and a camshaft and exhaust valves from the Bonneville were fitted for factory rating of 45 horsepower. The seller reports that a tune-up has been performed within the last nine months. The seller will provide a period owner’s handbook and service manual as well as a reprinted parts catalog. Partial service records are also included along with maintenance logs from the previous owner.

No Reserve: 1963 Honda CR93 Benly Replica

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This 1963 Honda motorcycle was built by an enthusiast in Northern Ireland as a tribute to the successful CR93 Benly race bikes. The build was based on a CB160 frame and is powered by a CB160 SOHC twin fitted with a CB175 cylinder head and barrels, lightened crank, Megacycle camshaft, 24mm Keihin carburetors, and a megaphone exhaust. Shifting is through a transmission modified with a fifth gear and a taller gear ratio. The bike was purchased a year ago by the selling dealer, who has since added a handful of miles and performed a tune-up. This CR93 replica is sold with a binder of technical specs, spare parts, build records, an electric roll starter, and a New Jersey bill of sale. The CR93 dominated club racing in the early 1960s, and only 140 original copies were produced. This tribute is finished in correct silver and orange and is said to feature accurate detailing throughout. The fiberglass fairings were reportedly molded from an original CR93, and an extra unpainted front fairing is included in the sale. Features include Tarozzi rearsets, Ikon shock absorbers, 
and a megaphone exhaust with Supertrapp baffles. Valanced aluminum rims are fitted with stainless steel spokes and new Avon Roadrunner tires. The seller reports that the bike has been used primarily for display since construction and has not been raced or used on track. The custom-fabricated aluminum fuel tank features a quick-fill cap. Other details include a CR93-style steering damper and clip-on bars, a suede covered seat, and a modern AutoMeter tachometer. The CB160 twin modified with a CB175 cylinder head and barrels, and built with new pistons, rods, and bearings as well as a lightened crankshaft, Megacycle cam, and Keihin PE24 carburetors with velocity stacks. A CB160 4-speed transmission case was machined to accept a fifth gear and taller gearing was installed. A tune-up was recently performed, though the seller recommends a thorough inspection before taking this bike to the track. As with many racing motorcycles, this example must be push started. An electric roll starter is included in the sale as well as spare pistons, cables, and gaskets. A binder containing build records, invoices, and technical details about the build will be provided along with a laminated CR93 magazine test.  

1971 Honda CB750 K1

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This 1971 Honda CB750 K1 was purchased by the seller three years ago as a running project and was recently refurbished by American V-Twin in Providence, Rhode Island. Work included fresh paint on the frame and bodywork, as well as re-plated or replaced chrome accessories. The 750cc inline-four is paired with a 5-speed transmission and was cosmetically detailed before re-installation. The seller has added 750 miles since the refresh and reportedly tested and tuned the bike to factory specifications. This CB750 is now being offered with a clean Rhode Island title in the seller’s name. Finished in the correct shade of Candy Blue-Green, the bodywork was recently repainted followed by the application of fresh decals and emblems. Chrome was either replaced or re-chromed as necessary, and the seat is believed to wear the original foam and cover. The forks legs, seals, and boots have been replaced, and the brakes were rebuilt with new pads and shoes. New factory wheels wear fresh Dunlop tires and tubes. The gauges were refinished by Marcel den Butter of 750faces.com with the odometer left untouched to reflect the actual mileage. 17,341 miles are currently indicated and believed to be accurate. The handle bars were replaced and a new brake master cylinder installed. The gauges, switchgear, and controls are reported to function as intended. Power comes from a SOHC 750cc four paired with a 5-speed transmission. The engine did not reportedly require a rebuild, so its components were cleaned and the cases refinished before being reinstalled into the frame. The exhaust system is reported to be free of corrosion and provides a mellow tone. Little is known of the early history, but records are available from the work performed from 2015-2018. Recent work included an oil change and brake service. The under-seat area shows the condition of the seat pan. No tool kit is provided, but a new battery was recently installed.

250-Mile 2008 Ducati Desmosedici RR

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This 2008 Ducati Desmosedici RR is one of 1,500 produced and shows just 250 miles. Based on the GP6 MotoGP bike, the RR features a dry weight of approximately 377 lbs thanks in part to carbon fiber bodywork and Marchesini wheels, and receives power from a 989cc desmodromic V4, which carries a factory-rated output of 200 horsepower at 13,500 rpm. Equipment also included a 6-speed manual gearbox, Öhlins suspension, slipper clutch, and Brembo brakes for an original MSRP of approximately $72k. This example has resided in the seller’s private collection for 10 years, during which it has been used for a handful of local car shows and featured in a Discovery Channel HD special. This Desmosedici RR is offered with factory books, accessories, and a clear Maryland title in the seller’s name. Rosso GP was the only color offered on the Desmosedici, though two graphics packages were available. This example comes equipped with Team Version graphics featuring broad white fairing stripes. The bodywork is molded in carbon fiber with a ceramic-carbon blend utilized in the tail section, which houses the exhaust silencer. A horn, headlights, tail lamps, turn signals, and license plate mount came fitted from factory. The engine is a stressed-member and a steel trellis frame connects the engine and steerer, while a carbon fiber subframe supports the rider. The aluminum swingarm is comprised of pressed, forged, and cast sections and pivots directly from the engine. The rear shock and TiN-coated 43mm USD forks were supplied by Öhlins, with each featuring preload, rebound, and high/low compression adjustments. Brembo 4-piston monoblock brake calipers are actuated by a radial master cylinder and clamp 330mm rotors up front. Forged and machined 7-spoke magnesium wheels from Marchesini measure 17″ up front and 16″ in the rear. Bridgestone developed the BT-01 Uno tire specifically for the Desmosedici RR, and a set remains installed. Instrumentation is provided via a Corse multifunction dash, which also displays ambient air temperature and comes equipped with a lap timer. Just under 250 miles are shown on the digital odometer. The 90-degree “twin pulse” V4 features a sand-cast case and cylinder heads, Pankl titanium connecting rods, four gear-driven camshafts, and desmodromic actuation to control the 16 titanium valves. Power is delivered to the 6-speed cassette-type gearbox through a dry multi-plate slipper clutch. Engine management is from Magnetti-Marelli, as are the individual 50mm throttle bodies. Exhaust gases leave through a 4-2-1 system with upward facing exits on the top of the tail section. A short video is provided above. One recall has reportedly been tended during the seller’s ownership, and a collection of factory books and accessories accompanies the bike.

1200-Mile 2017 Morgan 3 Wheeler

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This 2017 Morgan 3 Wheeler is a black over Mulberry leather example that was purchased new by the seller and shows just over 1,200 miles. A 1,901cc S&S V-twin sends power to a single rear wheel through a 5-speed manual transmission, and the car is equipped with revised front suspension and improved cooling compared to earlier models. This Morgan is registered as a motorcycle in Texas and offered with books, a record of the sole service performed during the seller’s ownership, and a clean Texas title in the seller’s name. The exterior is finished in black with matching painted wire wheels, cycle fenders, and headlight buckets. The vehicle retains stock mirrors and Brooklands-style screens. A rear mudguard is concealed under the rear bodywork. Morgan revised the 3 Wheeler front suspension in 2014 in an effort to reduce bump steer and tire wear, and specified the Urban Cooling Kit as standard from 2014 on. The body is equipped with bosses for fitment of a tonneau cover. The interior is trimmed in Yarwood Mulberry leather with an engine-turned dash and black rubber floor mats. The seller notes that this particular interior color was an $800 option when new. A banjo-spoke steering wheel is fitted, as are heated seats. The centrally-mounted aircraft-style instrumentation includes a digital odometer showing just over 1,200 miles. The 1,901cc S&S V-twin sends power to the rear wheel via a 5-speed Mazda gearbox with torque deflection disc and bevel drive. An AR Stage I exhaust and intake were installed by the factory, and the seller notes that these one-year only pieces increase the performance and flexibility of the S&S V-Twin. A 1,000-mile fluid service was performed in September 2017. An additional photo of the underside is provided in the gallery below. The original books are included in a leather-bound portfolio, as is an invoice from Morgan Motors of New England for the 2017 fluid service. The car is still under warranty, and will be covered through April 2020 or 30k miles, whichever comes first. A video of the car running and driving is viewable below.

No Reserve: 1973 Yamaha RD 350 Custom

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This 1973 Yamaha RD 350 has been with the seller for a year and a half and was refurbished in 2008 by the previous owner. Fresh paint was applied, and the 350cc two-stroke twin was rebuilt with upgraded DG heads and expansion chambers. The 6-speed gearbox was also rebuilt, and the braking system was gone through as described below. The seller has added less than 300 of the 12k indicated miles and describes the bike as light and quick. This RD350 is now being offered at no reserve with two binders and a CD detailing the rebuild, as well as transferable Vermont registration as Vermont does not issue titles to older vehicles. The fuel tank, side covers, and headlight shell were stripped and repainted 
House of Kolor Orion Silver metallic. The frame was media blasted and painted black Imron with a clear coat. The swing arm bushings were replaced with needle bearings, custom rear sets were fabricated, and Works shocks fitted to the rear. The wiring harness, battery, and rectifier were replaced. The seat has new foam and was recovered in black with grey piping that matches the bodywork. The front end features a steering dampner, custom triple clamps, and polished fork tubes with new inserts, springs, seals, and boots. The brake master cylinder was replaced and a new disc brake caliper was added along with steel braided lines and drilled rotors. The wheels feature new rims, spokes, tubes, and tires. Just over 12k miles are indicated, less than 300 of which have been added by the seller. New control cables have been installed and the lights, horn, and signals are functional. The 350cc two-stroke twin and 6-speed transmission were rebuilt by LD&R Machine in Berwick Maine. The cases wear a custom finish and the crankshaft was balanced. New rods, bearings, and pistons were also installed. The cylinders were ported and polished and TZ 350 reed valves added. The radial cylinder heads are DG ” Gold” items, and DG expansion chambers with silencers have been fitted. Both are period aftermarket pieces that are no longer available. The carburetors were rebuilt with a boost bottle added, and a new oil pump and electronic ignition were installed. The seller has added fresh fuel and synthetic two cycle oil. A binder with spacifications about the engine rebuild and a CD with service information is supplied. A separate binder contains information about the assembly. A brief start up and running video is provided below.