Honda Z50 Identification Guide
Frame numbers, VINs, engine numbers, factory colors and the changes Honda made every year, from the original 1968 Z50A Mini Trail to the last 1999 Z50R. Identify your bike, then shop parts that fit.
How To Identify
Your Z50
Honda changed paint, graphics and hardware on the Z50 almost every year, which makes dating one by eye a guessing game. The stamped numbers do not lie. Start with the frame, confirm with the engine, then use the year notes to rule out a repaint or swapped parts.
Find the frame number
On 1968 through 1980 bikes it is stamped on the left side of the steering head and starts with Z50A or AB02. From 1981 on, Honda switched to a 17 character VIN that starts with JH2AB020.
Check the engine number
Stamped on the left side of the crankcase just below the cylinder. Z50A engines start with Z50AE, Z50R engines with AB02E, and the 1988 ZB50 with AB22E.
Match colors and details
Use the identifying features under each year below. Tank stripes, seat graphics, number plates and logos changed constantly, so these details confirm a year when the numbers are worn or the bike has been repainted.
Decoding A
Z50R VIN
From 1981 on, every Z50R carries a 17 character VIN. JH2 identifies Honda of Japan, AB02 is the Z50R model code (AB22 on the ZB50), and the 10th character is the model year. Find that letter in the table below.
| B | C | D | E | F | G | H | J | K | M | N | P | R | S | T | V | W | X |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1981 | 1982 | 1983 | 1984 | 1985 | 1986 | 1987 | 1988 | 1989 | 1991 | 1992 | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 |
Example: JH2AB020*FS600001 is a 1985 Z50R (F in the 10th position). The letters I, O, Q and U are never used in a VIN. No 1990 Z50R was sold in the US, which is why L is missing from the sequence.
Z50 Quick
Reference
Numbers shown are the starting frame and engine number for each model year. Your bike's number will fall at or above the number for its year and below the next year's start. Click a year for full details.
| Year | Model | Frame / VIN starts | Engine starts | Factory colors |
|---|---|---|---|---|
| 1968-1969 | Z50A K0 | Z50A-100001~ | Z50AE-100001~ | Candy Red / Silver; Bright Yellow / Silver |
| 1969-1970 | Z50A K1 | Z50A-120088~ | Z50AE-120088~ | Candy Red / Silver; Bright Yellow / Silver; Candy Blue / Silver |
| 1970-1971 | Z50A K2 | Z50A-270236~ | Z50AE-270236~ | Candy Ruby Red / White; Candy Sapphire Blue / White; Mexican Yellow / White |
| 1972 | Z50A K3 | Z50A-1000001~ | Z50AE-1000001~ | Candy Gold / Black; Light Ruby Red / Black |
| 1973 | Z50A K4 | Z50A-3000001~ | Z50AE-3000001~ | Hawaiian Blue Metallic; Candy Orange |
| 1974 | Z50A K5 | Z50A-5000001~ | Z50AE-5000001~ | Candy Sapphire Blue; Candy Topaz Orange |
| 1975 | Z50A K6 | Z50A-6000001~ | Z50AE-6000001~ | Candy Ruby Red |
| 1976 | Z50A '76 | Z50A-6100001~ | Z50AE-6100001~ | Parakeet Yellow |
| 1977 | Z50A '77 | Z50A-6200003~ | Z50AE-6114616~ | Tahitian Red |
| 1978 | Z50A '78 | Z50A-6300003~ | Z50AE-6300001~ | Tahitian Red |
| 1979 | Z50R '79 | AB02-5000009~ | AB02E-5000001~ | Tahitian Red |
| 1980 | Z50R '80 | AB02-5100007~ | AB02E-5100001~ | Tahitian Red |
| 1981 | Z50R '81 | VIN JH2AB020*BS200001~ | AB02E-5200001~ | Tahitian Red |
| 1982 | Z50R '82 | VIN JH2AB020*CS300002~ | AB02E-5300001~ | Blaze Red |
| 1983 | Z50R '83 | VIN JH2AB020*DS400012~ | AB02E-5400001~ | Blaze Red |
| 1984 | Z50R '84 | VIN JH2AB020*ES500001~ | AB02E-5500001~ | Blaze Red |
| 1985 | Z50R '85 | VIN JH2AB020*FS600001~ | AB02E-5600001~ | Blaze Red |
| 1986 | Z50R '86 | VIN JH2AB020*GS700001~ | AB02E-5700001~ | Blaze Red |
| 1986 | Z50RD '86 Special | VIN JH2AB020*GS700001~ | AB02E-5700001~ | Chrome |
| 1987 | Z50R '87 | VIN JH2AB020*HS800001~ | AB02E-5800001~ | Blaze Red / Shasta White |
| 1988 | Z50R '88 | VIN JH2AB020*JS900001~ | AB02E-5900001~ | Blaze Red / Shasta White |
| 1988 | ZB50 '88 | VIN JH2AB220*JS000001~ | AB22E-2000001~ | Black / Max Silver Metallic |
| 1989 | Z50R '89 | VIN JH2AB020*KS000001~ | AB02E-6000001~ | Blaze Red / Shasta White |
| 1991 | Z50R '91 | VIN JH2AB020*MS000004~ | AB02E-6100001~ | Shasta White |
| 1992 | Z50R '92 | VIN JH2AB020*NK100001~ | AB02E-6400001~ | Shasta White |
| 1993 | Z50R '93 | VIN JH2AB020*PK200001~ | AB02E-6500001~ | Shasta White |
| 1994 | Z50R '94 | VIN JH2AB020*RK300001~ | AB02E-6506520~ | Shasta White |
| 1995 | Z50R '95 | VIN JH2AB020*SK400001~ | AB02E-6600001~ | Shasta White |
| 1996 | Z50R '96 | VIN JH2AB020*TK500001~ | AB02E-6605420~ | Shasta White |
| 1997 | Z50R '97 | VIN JH2AB020*VK600001~ | AB02E-6610730~ | Shasta White |
| 1998 | Z50R '98 | VIN JH2AB020*WK700001~ | AB02E-6615433~ | Shasta White |
| 1999 | Z50R '99 | VIN JH2AB020*XK800001~ | AB02E-6620650~ | Shasta White |
The Three
Z50 Generations
Z50A K0, K1, K2
The original Mini Trail. Chrome fenders, two tone tank, folding handlebars and the first hard tail frame. Frame numbers start with Z50A-1. These are the most collectible Z50s.
Z50A K3 through '78
An all new chassis arrived with the K3 in 1972. Chrome fenders continued through 1977, then switched to red painted steel for 1978. Colors and tank stripes changed nearly every year.
Z50R
Redesigned as an off road bike with rear suspension, a solo seat and number plates. Points ignition through 1983, CDI from 1988 on. Tahitian Red, Blaze Red and finally Shasta White define the eras.
Year By Year
Z50 Identification
Every US model with its starting numbers, factory colors and the features that set that year apart. Jump to a year:

Z50A Mini Trail 50 (Z50AK0)
- Fuel tank is 2-tone; fenders are chrome K0 through K2
- White grips and white plastic levers
- Early units: #415 drive chain; late units: #420 drive chain
- 49cc OHC single, 3-speed, automatic clutch (K0 through '99)

Z50AK1 Mini Trail 50
- Black grips and black plastic levers
- Battery is standard equipment on K1 only

Z50AK2 Mini Trail 50
- "Mini Trail" fuel tank emblem is red and black
- Black grips and silver aluminum levers K2 through '78
- Extended rear fender (change)

Z50AK3 Mini Trail 50
- Fuel tank panel is black; "Mini Trail" logo is orange
- All new chassis K3 through '78
- Left side cover is blank
- Chrome chain guard
- Chrome fenders K3 through '77

Z50AK4 Mini Trail 50
- Tank stripe is black and white with orange "Honda" logo
- Black chain guard K4 through '78
- "Z50" logo on left side cover K4 through '77

Z50AK5 Mini Trail 50
- Fuel tank stripe is yellow/black

Z50AK6 Mini Trail 50
- Fuel tank stripe is orange/yellow/black

Z50A '76 Mini Trail 50
- Fuel tank stripe is red
- "Z50" side cover logo is red and white

Z50A '77 Mini Trail 50
- Fuel tank stripe is dark blue

Z50A '78 Mini Trail 50
- Fuel tank stripe is yellow/orange/red/black
- Red painted steel fenders
- "Mini Trail 50" side cover logo is orange, red and white

Z50R '79
- Black seat with no graphics
- Red front number plate '79 through '81
- Black shock springs; points ignition '79 through '83

Z50R '80
- Black solo seat with red "Z" graphics '80 through '81
- White "50R" decal on side number plates '80 through '81
- Number plates on left and right side '80 through '99 (change)

Z50R '81
- "50R" decal graphic design on number plate (change)

Z50R '82
- Black solo seat with white "50R" graphics
- White number plates with red "Z" decals

Z50R '83
- Black solo seat with white "Z" graphics
- Yellow number plates with white "50R" decals

Z50R '84
- Blue solo seat with white "Z" graphics '84 through '87
- Yellow number plates with red "50R" decals
- Red shock springs

Z50R '85
- Yellow number plates
- "Wing" decal is red/white/blue '85 through '87
- Blue shock springs '85 through '86

Z50R '86
- White number plates
- Gold painted wheels '86 through '87

Z50RD '86 Special
- All steel parts are chrome plated
- Red seat and grips
- White number plates
- "Wing" decal is red/white/blue

Z50R '87
- White frame, fenders and shock springs

Z50R '88
- Blue solo seat with white "Honda" graphics
- Frame, front fender, number plates and wheels are white
- C.D. ignition '88 through '99 (change)

ZB50 '88
- Fuel tank, fenders and fork legs are black
- Frame and swingarm are silver
- Seat, "ZB" logo and wheels are red
- 49cc OHC single, 3-speed, automatic clutch

Z50R '89
- Frame, number plates and wheels are white
- Fuel tank, seat, front and rear fenders are red
- New style "Wing" logo on fuel tank (change)
- "Z" logo on seat (change)

Z50R '91
- Seat is red
- "Honda" logo and number plate panel are blue
- "Z" logo is red and blue
- "50R" logo on seat is red on white brushed graphics (change)

Z50R '92
- Fuel tank "Wing" logo deleted (change)
- "50R" logo on seat is white (change)

Z50R '93
- Fuel tank logo reads "Z50R" (change)
- "Honda" seat logo is white (change)

Z50R '94
- XR style graphics; "50R" on seat is white (change)
- Fuel tank logo reads "Z" (blue) "Honda" (red) (change)

Z50R '95
- Fuel tank logo "Z" (red) "Honda" and outline purple (change)

Z50R '96
- Fuel tank logo redesigned (change)

Z50R '97
- White number plate backgrounds '97 through '99 (change)
- Fuel tank logo redesigned with new color: black/white/red (change)

Z50R '98
- "50R" on seat is black (change)
- Fuel tank logo redesigned to include yellow Honda "Wing" logo (change)

Z50R '99
- Honda "Wing" deleted from fuel tank decals (change)
Identification
Questions
Also see the CT70 identification guide, other Honda mini model ID, and the Honda tech info page.
