Honda mini trail 50

Honda mini trail 50 DEFAULT

14040 Hwy 110 South
Whitehouse, Texas 75791
903-509-2727 phone
903-939-1559 fax

 Throttle StopperKO - 1978Screw, ThrottleKO - 1978







Honda Z50A

The Honda Z50A is a small motorcycle with a 49 cc (3.0 cu in) single-cylinderfour-strokeoverhead cam engine and a semi-automatic transmission. It was made by Honda from 1968-1978 and it was the second generation of the Z50 Series of minibikes.[1] The 1968-1971 Z50As were known as the "Hard Tail" because of their lack of rear shock absorbers.[1] 1968 was also called a K0,[1] a 1969-1970 is called a K1[1] and a 1970-71 are referred to as K2s.[1] Rear shock absorbers were added to the Z50A in 1972 and it was referred to as a K3.[1]


The 1968 sometimes referred to as the "High Bar" or the "Slantguard", was the first of the Z50 series to be released to the American market. The bikes had white handgrips and 8 inch wheels. They came in with a two tone paint job.[2]

In 1972, after frame cracking became a growing issue, Honda incorporated rear suspension on the bike. The Z50A "Soft Tail" remained on the American market until after model year 1978, when it was replaced by the Z50R. In Europe and Japan, the Z50A was renamed the Z50J in 1973, and remained on the market until 1999.

See also[edit]


  1. Dawn of war 2 farseer
  2. How to layout dovetail joints
  3. React bootstrap dropdown
  4. Pep boys credit card

One of Honda’s longest-standing series is, without question, the Honda Z50 Mini Bike. Introduced in 1961 as the CZ100 in Tama Tech Park in Tokyo, this iconic pocket bike was initially sold in Europe before the U.S. and the first to spawn a market for commercial minibikes. Due to its massive success, it became the prototype for other iconic two-wheelers such as the CT70 and other dual-sport motorcycles.

The Honda Z50 is a 49-cc mini trail bike series produced from 1961 to 2017. More popularly known as the Gorilla or Monkey Bike, this two-wheeler preceded the Dachshund-like CT70 and led the minibike boom of the ’60s with its ultra-reliable air-cooled 4-stroke power mill.

In addition to a reputable engine, its overall design and build quality put it light years ahead of its lawnmower-powered counterparts. With its folding handlebars and 8-inch wheels, the Monkey Bike was convenient to transport or bring on outdoor adventures. Its small frame not only fit in a trailer home’s under-seat or an average-sized car’s trunk with ease but also forced a funny, simian crouch out of its riders.

Continue reading and learn more about this pocket bike that brings with it as much joy as it does nostalgia. And who knows? By the end of this guide, you may want to fit one of these classics in your garage, too.

History of the Monkey Bike

Despite the presence of repurposed lawnmower engines in the ’50s and minibikes being sold through dealerships as early as the late ’40s, it was not until the mass-production of the Honda Z series that all these became commonplace. That was how huge an impression the Honda Z50 lineup made on the riding community. And it all started in a company-owned tech park in Tokyo in 1961.

Head honchos saw the potential profitability of the wheeler outside amusement park tracks. So, after releasing a road-legal version in 1964 and redesigning a few elements, Honda launched the Z50 in Europe in 1968 and the U.S. in 1969. Expectedly, the launch happened in perfect timing with the minibike boom of the late ’60s. The noticeable difference in technology between the Z50 series and its competition not only secured the mini bike’s standing on the riding map but also translated into sales of more than 70,000 units in its first year in the U.S. alone.

The Honda Z50 series had five model designations, namely – Z50M, Z50A, Z50R, Z50J, and ZB50. Out of the lot, the Z50J (released in Europe and other non-U.S. markets) had the longest run, followed by the Z50R series. All generations of the Honda Z50 series were in production until 1999. But including iterations, these mini bikes were produced until 2017. For reference, here is a list of Z50 Mini Trail models released from 1964 until 1999:

Year / IDColorsRetail/Trade-In Values
1961 Z100 / 1963 CZ100Bright RedN/A
1967 – 1969 Honda Z50MCandy Red, Bright YellowN/A
1968 – 1969 Z50AK0$715 – $5,095
1969 – 1970 Z50AK1Candy Red, Bright Yellow, Candy Blue$680 – $3,300
1970 – 1971 Honda Z50ACandy Ruby Red, Mexican Yellow, Candy Sapphire Blue$680 – $3,300
1972 Z50AK3Candy Gold, Light Ruby Red$565 – $2,335
1973 – 1999 Z50JCandy Gold, Light Ruby Red (EU, Japan)N/A
1973 Z50AK4Hawaiian Blue Metallic, Candy Orange$480 – $1,910
1974 Z50AK5Candy Sapphire Blue, Candy Topaz Orange$480 – $1,910
1975 Z50AK6Candy Ruby Red$475 – $1,880
1976 Z50AParakeet Yellow$475 – $1,735
1977 – 1978 Honda Z50ATahitian Red$475 – $1,880
1979 – 1981 Honda Z50R$445 – $1,645
1982 – 1985 Z50RBlaze Red$475 – $2,250
1986 Z50R$590 – $1,955
1986 Z50RD SpecialChrome$1,540 – $9,385
1987 Z50RBlaze Red$475 – $1,645
1988 Z50R$585 – $1,645
1989 Z50R$475 – $1,370
1991 – 1995 Z50RShasta White$235 – $1,570
1992 Honda Z50 Baja MonkeyWhite w/ Baja decals, handguards & twin headlights$760 – $4,385
1992 – 1995 Z50RN/RP/RShasta White$475 – $1,370
1996 – 1998 Z50R$135 – $660
1997 Z50RV$155 – $660
1998 Z50RW$220 – $715
1999 Z50RX$230 – $735

Honda Z50 Specs and Features


The Honda Z50 Mini Trail is built around an air-cooled 49-cc power mill that the firm used on their 1963 CZ100 – the actual pocket bike that served as an attraction in the Tama Tech Park in Tokyo. A 13-mm Keihin carburetor (view on Amazon) handles the air-fuel mixture for the bike. In 2008, this fuel system was replaced by Honda‘s Programmed Fuel Injection (PGM-FI) system, which made for improved torque and power output of 3 hp/3.04 PS @ 7,500 RPM.

Honda Z50A K2 (USA Type)1977 Honda Z50A
Engine Type4-Stroke OHC
Cylinder LayoutSingle-cylinder, tilt up 10° from horizontal
Carburetion SystemCarburetion, 13-mm Keihin piston-valve type x 1
Engine CoolingAir cooling
Jetting#50 (main); #100 (air); #38 (slow)
Engine FuelUnleaded gasoline of at least PON 86 or RON 91, containing < 5% MTBE (Methyl Tertiary Butyl Ether), < 10% ethanol, or < 5% methanol w/ appropriate cosolvents and corrosion inhibitors
Fuel Capacity2.5 L (0.7 US gal)4 L (1.1 US gal)
Bore x Stroke Ratio39 x 41.4 mm (1.53 x 1.63 in)
Compression Ratio8.8:1
Displacement49 cm³ / 3 in³
Valve Stem to Guide ClearanceIntake: 0.01-0.03 mm (0.0004-0.0012 in) Exhaust: 0.03-0.05 mm (0.0012-0.0020 in)
Valve Clearance Cold (Int/Ex)0.05 mm (0.002 in)
Horsepower1.92 hp/1.95 PS @ 5,000 RPM
Maximum Torque3 Nm (0.31 kgf-m, 2.2 ft-lb @ 4,200 RPM)
Top Speed25 mph (40 km/h)
Air FiltrationOiled polyurethane foam type
LubricationPressure lubrication & wet sump
Oil FiltersCentrifugal & screen mesh
Engine Oil & Quantity0.8 L (1.7 US pint) of SAE 10W-40 Honda 4-stroke oil w/ an API grade of SJ+ meeting JASO T903 MA, MB standards
Alternatives: SAE 30 (above 15° C/60° F); SAE 20W (-10° to 15° C/15°-60° F); SAE 10W (below 0° C/32° F)


The Honda Z series shares the same clutch assembly and gearshift pattern as the CT70. The main differences are in the front and rear sprockets, final drive, and transfer gear ratios. Driveline components remained unchanged during the first decade of the Z50 in production.

Honda Z50A K2 (USA Type)1977 Honda Z50A
ClutchWet, multiple disc, automatic, centrifugal type
Transfer, Transmission Type3-speed constant mesh, manual
Gearshift PatternN-1-2-3 (left foot operation)
Drive SystemChain & sprocket final drive w/ 10-20 mm (0.040 – 0.080 in) slack
(12T/37T); #415 (later #420) drive chain
Primary Reduction Ratio3.722
Final Drive Ratio2.9173.083
Transfer Gear Ratio1st – 3.182 / 2nd – 1.824 / 3rd – 1.190


Initially, the bike had a flywheel magneto ignition and an AC generator charging system – this later changed to a Capacitor Discharge Ignition for ’88 Monkey bike trims and onward, alongside electrical components upgraded from 6V to 12V. Should you have an earlier Z50 model, you can avail a kit that would convert older points engine to current standards. Either that, or you can choose the easier route by installing a Chinese clone motor – brands Lifan, Zongshen, or GPX are favored by veteran mechanics.

Honda Z50A K2 (USA Type)1977 Honda Z50A
IgnitionFlywheel magneto
Idle Speed1,200 – 1,300 RPM ± 1001,500 RPM ± 100
Starter SystemForward kick-start mechanism
Spark PlugNGK C6H or NIPPON DENSO U20FS, Gap: 0.6-0.7 mm (0.024 – 0.028 in)
Torque specs: 1/2 to 3/4 turn past finger tight
GeneratorFlywheel A.C. generator
Battery6V (2 Ah)/10 HR, 12V YTR4A-BS format (recommended)
Battery Dimensions (L x W x H)114 x 49 x 86 mm (4.50 x 1.94 x 3.38 in)

Tires & Brakes

The first Monkey bike had 89 × 127 mm (3.5 x 5.0 in) wheels. But later models, specifically the 1968 “High Bar” or “Slantguard” trims (the first units to be released in the U.S.), had 89 × 203 mm (3.5 x 8.0 in) wheels. Brakes were expanding drums and did not turn into disc brakes until the Monkey R/RT series and the 2019 125-cc retro-styled iteration.

Honda Z50A K2 (USA Type)1977 Honda Z50A
Wheel CompositionSteel, laced wire spokes / Cast aluminum
Front Tire, Air pressure3.50 x 8 (2 PR), 98 kPa (1.0 kgf/cm2, 14.2 psi)3.50 x 8 (2 PR or 4 PR), Bridgestone, Nitto, Inoue tire brands
98 kPa (1.0 kgf/cm2, 14.2 psi)
Rear Tire, Air pressure
Front Brake Type110-mm Internal expanding shoe
Rear Brake Type


Initial models of the Honda Z50 Mini Trail had welded steel tubing with no rear suspension. As if a form of consolation, the small front fork offered very primitive wheel travel. It was not until five years from entering the American market that the toy bike was equipped with a dual-shock rear suspension. This addition happened alongside a new frame, a new seat, and a redesigned fuel tank.

Honda Z50A K2 (USA Type)1977 Honda Z50A
FrameTubular steel
Caster, Trail67°, 40 mm (1.6 in)65°, 42 mm (1.7 in)
Turning Circle2.6 m (8.6 ft)
Wheelbase880 mm (34.7 in)895 mm (35.2 in)
Ground Clearance170 mm (6.7 in)
Front Suspension Type, Travel26-mm Telescopic fork
Rear Suspension Type, TravelRigid frame


Somewhat like the CT70, almost everything about the Honda Z50 dimensions was improved or upgraded for later-year models. The seat height was unchanged during the ’70s but had slight increases for succeeding trims. Payload capacity remained the same throughout the vehicle’s production. Interestingly, the K2 trim is slightly heavier than units for general export, which weighed 49 Kg (108 lbs).

Honda Z50A K2 (USA Type)1977 Honda Z50A
Length1,280 mm (50.4 in)1,300 mm (51.2 in)
Width580 mm (22.8 in)615 mm (24.2 in)
Height865 mm (34.1 in)850 mm (33.5 in)
Seat Height (Unloaded)560 mm (22 in)
Curb Weight53.5 Kg (118 lbs)53 Kg (117 lbs)
Vehicle Load Capacity Limit68 Kg (150 lbs)


Both trademark features that separated the CT70 from its competition were derived from the Monkey bike. The Z50 was the first to have foldable handlebars. But instead of a Dachshund-like T-bone frame, it had a backbone-type chassis. The 50-cc minibike eventually introduced a larger version with a 4-speed manual gearbox, larger fuel tank, twin-spar aluminum frame, and handlebars that did not fold down in Japan – the 1978 Z50J-III, fondly called the “Gorilla.” The Monkey R/RT series shared the same framework with the sportier but short-lived Gorilla.

Honda Z50A K2 (USA Type)1977 Honda Z50A
Headlight6V 15/15 W x 2
Brake/Taillight6V 17/5.3 W x 2
Indicator LightsN/A

Cost of a Z50 Honda Mini Trail

The list price of the Honda Z50 ranged from $225 to $1,299. Meanwhile, the 2017 50th Anniversary Special Edition trim was valued at $3,999. For secondhand units, Honda Mini Trail Z50 pricing falls between $550 and $10,00 – depending on whether the vehicle is fully restored, kept in mint condition with OEM components, or sold for parts. Due to its age, used Z50s priced between $3,300 and $5,000 and in excellent working condition are already considered a steal. Any unit valued below $2,800 is most likely unrestored and may require some work to run.

Improvements Post-1970

Apart from the seminarian crouch that its riders naturally do while riding the bike, the Honda Z50 is also known for the number of cosmetic and mechanical upgrades it underwent. Here are some of those significant developments:

1972: A motorcycle-type swingarm with dual rear shocks was introduced on the bike, along with a chrome chain guard, brake pedal, and fenders.

1979: Redesigned fuel tank, newer seats, and BMX-style handlebars made the pocket bike more race-ready than previous models that catered to more casual rides.

1983: The recommended spark plug was changed to NGK CR6HSA, beginning with the ’83 model.

1984: Enhancements were made to its suspension system and vehicle dimensions. Dry weight slightly dropped while seat height increased by half an inch.

1986: Wheels were painted gold, and all steel parts were chrome plated for the Special Edition Z50RD trims. 

1987: The frame, fenders, and shock springs were finished in Shasta White, and rims were painted gold.

1988: Ignition system of the Honda Z series changed from contact breaker to CDI. Additionally, the wiring harness changed from 6V to 12V.

1988: Honda released a sportier and more expensive street-legal ZB50, which came standard with a twin-spar aluminum frame and upward exhaust (view on Amazon) – alongside lighting improvements and other fixtures.

1996: The fuel tank logo was again redesigned with a new color palette of black, white, and red for ’96 – ’97 models.

While most of these upgrades kept the Monkey bike in production until 2017, some of them would have been better done at an earlier stage. For example, necessary changes to the Z50’s wiring harness were only done in 1988, leading to the classic wheeler being legally off the road for more than 20 years since its inception. Color options became fewer towards the later years of the mini bike, with all ’90s models being offered only in Shasta White.

End of Life for the Monkey Bike

The discontinuance of the Honda Z50 or Gorilla bike was a long time coming. Many speculate that Honda dropping the Z50A from its American lineup in 1978 may have started it. Others point to missing Honda Z50 parts and features like disc brakes and a true suspension. But in truth, it is the same reason that led to the halt of its successor – emission control regulations.

Unlike in larger motorcycles, it would be challenging for small-displacement engines to be emission-control compliant. Hence, the Japanese firm announced in March of 2017 that it would discontinue the Z50 series in August of that same year. To end things on a high note, Honda retired the famous Monkey bike with the release of a 50th Anniversary Special Edition, sold for ¥432,000 (roughly $3,900) and only made available to Japanese consumers.

About Honda 

Apart from being a pioneer of the ATV and motorcycle industry, Honda Motor Company Ltd. is also globally recognized for its uncanny ability to capitalize on emerging trends – like what it did with the Honda Z50 series. Merely 15 years from its inception, the Japanese firm created what will later go down as one of the greatest minibikes ever produced. The Honda Z50 laid the framework for the famed CT70 and other pocket bikes and dual-sport motorcycles. Thanks to Honda’s ingenuity and efforts, consumers from all over the world continue to enjoy an armada of quality product offerings, ranging from multipurpose engines to high-caliber automobiles.

Conclusion – Honda Z50 Mini Bike Review

Unlike its successor, the CT70, the Honda Z50 is still very much in circulation – especially with the recent 2019 retro-styled iteration called “Monkey.” While this latest model does incorporate elements from both the Z50 series and the 2014 Grom, it is very much reminiscent of the original Monkey Bike that both kids and adults enjoyed. It strikes a perfect balance between the casual and sporty nature of the two-wheeler and aptly fulfills many riders’ desires of how the Monkey Bike should be like. Whether you go for this modern version or a well-kept 1969 trim, you are guaranteed an excellent riding experience – be it on pavement or off the road.

1972 Honda Z50 Mini Bike

She swallowed it with pleasure and devotion, looking at the face, distorted by frenzied passion and incredible happiness. He belonged entirely to her. Having no desire to hang around in this fucking office, he called her and asked what she wanted for lunch. Having bought trout on the way and savoring the upcoming meeting, he opened the apartment door. She sat in a chair, half-naked after a shower.

Trail 50 mini honda

The question is why, I was even worried about something, because I never slept with two girls. But then came back from the bathroom all clean and fragrant sexy Yulka and lay down on the edge of the bed. She was in panties and a blue shirt.

1969 Honda Z50 Red \u0026 Blue Restorations

I walked past them and moved on. In fact, I was burnt with curiosity if they have an erection now or not. I myself was extremely excited by the fact that two pretty young men were standing half. A meter away from me, and even naked.

Similar news:

The friends lay on the bed and watched a music program on TV. Somehow Im tired of this music, Oksana yawned, maybe well see something else. Jeanne did not answer, lost in some of her thoughts. Hey, where are you. - Oksana turned to her, - do you sleep with your eyes open or what.

948 949 950 951 952