Models with Non-Reed Engine
N1. ’76-82 Derbi Variant SL
N2. ’78-82 Derbi Variant SLE
N3. ’76-82 Derbi Variant TT
N4. ’78-79 Derbi Laguna
N5. ’80-82 Derbi Sport Laguna
N6. ’78-82 Derbi C5 Diablo
Models with Pyramid Reed Engine
P1. ’83-85 Derbi Variant SL
P2. ’83-84 Derbi Variant SLE
P3. ’83-84 Derbi Variant SLE-E
P4. ’83-87 Derbi RD50
P5. ’83-84 Derbi Scoot 50, Scoot 80
Models with Flat Reed Engine
F1. ’84-85 Derbi Variant SLE
F2. ’84-85 Derbi Variant SLE-C
F3. ’85-86 Derbi Variant SLE-X
F4. ’87-89 Derbi Variant Sport
F5. ’86-89 Derbi DS50
1976 N1 ♦ 2.50-17 2.50-17 19x30T Variant SL spoke wheels
1976 N3 ♦ 2.50-17 2.50-17 19x30T Variant TT spoke wheels
1977 N1 ♦ 2.50-17 2.50-17 19x30T Variant SL spoke wheels
1977 N3 ♦ 2.50-17 2.50-17 19x30T Variant TT spoke wheels
1. 1977 Derbi flyer, 2. 1978 C5 Diablo specs
Derbi is the most heavy-duty moped, with a gross vehicle weight rating (GVWR) of 450 lbs. The SL was 123 lbs, and SLE was 125 lbs, so the rider (with passenger and cargo) can weigh 325 lbs.
1978 N1 ♦♦ 2.50-17 2.50-17 19x30T Variant SL spoke wheels
1978 N2 ♦♦ 2.50-17 2.50-17 19x30T Variant SLE gold 5-stars
1978 N3 ♦♦ 2.50-17 2.50-17 19x30T Variant TT spoke wheels
1978 N4 ♦♦ 2.50-17 2.50-17 20x30T Laguna silver 5-stars
1978 N6 ♦♦ 2.50-21 2.75-18 20x42T C5 Diablo spoke wheels
1979 N1 ♦♦ 2.50-17 2.50-17 19x30T Variant SL spoke wheels
1979 N2 ♦♦ 2.50-17 2.50-17 19x30T Variant SLE gold 5-stars
1979 N3 ♦♦ 2.50-17 2.50-17 19x30T Variant TT spoke wheels
1979 N4 ♦♦ 2.50-17 2.50-17 20x30T Laguna silver 5-stars
1979 N6 ♦♦ 2.50-21 2.75-18 20x42T C5 Diablo spoke wheels
1, 2, 3, 4. 1980 Derbi flyer
1980 N1 ♦♦ 2.50-17 2.50-17 19x30T Variant SL spoke wheels
1980 N2 ♦♦ 2.50-17 2.50-17 19x30T Variant SLE gold 5-stars
1980 N3 ♦♦ 2.50-17 2.50-17 19x30T Variant TT spoke wheels
1980 N4 ♦♦ 2.50-17 2.50-17 20x30T Laguna silver 7-stars
1980 N6 ♦♦ 2.50-21 2.75-18 20x42T C5 Diablo spoke wheels
1981 N1 ♦♦ 2.50-17 2.50-17 19x30T Variant SL spoke wheels
1981 N2 ♦♦ 2.50-17 2.50-17 19x30T Variant SLE gold 5-stars
1981 N3 ♦♦ 2.50-17 2.50-17 19x30T Variant TT spoke wheels
1981 N4 ♦♦ 2.50-17 2.50-17 20x30T Laguna silver 7-stars
1981 N6 ♦♦ 2.50-21 2.75-18 20x42T C5 Diablo spoke wheels
1982 N1 ♦♦ 2.50-17 2.50-17 19x30T Variant SL spoke wheels
1982 N2 ♦♦ 2.50-17 2.50-17 19x30T Variant SLE gold 5-stars
1982 N3 ♦♦ 2.50-17 2.50-17 19x30T Variant TT spoke wheels
1982 N4 ♦♦ 2.50-17 2.50-17 20x30T Laguna silver 7-stars
1982 N6 ♦♦ 2.50-21 2.75-18 20x42T C5 Diablo spoke wheels
1. 1982 Derbi electric start debut
2. 1983 Derbi SL in War Games movie
3. 1983 Derbi flyer side 2
The movie “War Games” came out in May 1983. It featured a 1983 Derbi SL white. The flyer says “60th anniversary 1922-1982”.
1983 P1 ◊♦♦ 2.50-16 2.50-16 19x30T Variant SL spoke wheels
1983 P2 ♦♦♦ 2.50-17 2.50-17 19x30T Variant SLE gold 7-stars
1983 P3 ♦♦♦ 2.50-17 2.50-17 19x30T Variant SLE-E gold 7-s
1983 P5 ♦♦♦ 2.50-21 2.75-18 20x42T RD50 spoke wheels
1983 P6 ♦♦♦ 3.00-10 3.00-10 00x00T Scoot 50 .
1983 P6 ♦♦♦ 3.00-10 3.00-10 00x00T Scoot 50-E .
1983 P6 ♦♦♦ 3.50-10 3.50-10 00x00T Scoot 80-E .
1. 1983 Derbi news letter 1984
2. 1984 Derbi models, 3. 1984 Derbi specs
The 1983-86’s have these subtle improvements: Crankcase 3-petal pyramid reed valve for more torque. 90 degree throttle cable, not “straight out” (longer wire). Black aluminum brake levers not black plastic. Front sprocket sticks out more, nut hits earlier left cover. The cast aluminum swing arm was upgraded to box steel. The center panel choke button is 2 inches farther back.
The 1983 SLE-E (electric) had electric start. The sticker on the side of the frame was “Variant Botton Rojo”
There never was a parts catalog made for the 1983-1986 Derbi mopeds. There were only addenda or updates to the 1976-1982 parts catalog, in the form of loose sheets of paper.
1984 P1 ◊♦♦ 2.50-16 2.50-16 19x30T Variant SL spoke wheels
1984 P2 ♦♦♦ 2.50-17 2.50-17 19x30T Variant SLE gold 7-stars
1984 F1 ♦♦♦ 2.50-17 2.50-17 13x35T Variant SLE gold 7-stars
1984 P3 ♦♦♦ 2.50-17 2.50-17 19x30T Variant SLE-E gold 7-stars
1984 F2 ♦♦♦ 2.50-17 2.50-17 13x35T Variant SLE-C gold 7-stars
1984 P5 ♦♦♦ 2.50-21 2.75-18 20x42T RD50 spoke wheels
1984 P6 ♦◊♦ 3.00-10 3.00-10 00x00T Scoot 50-E .
1984 P6 ♦◊♦ 3.50-10 3.50-10 00x00T Scoot 80-E .
The Scoot 50 and Scoot 80 had a de-restricted pyramid-reed moped engine, but without pedals. Notice how much thicker the front exhaust header pipe is. These scooters went 40 to 55 mph.
The SLE-C (commercial) had a solo seat to allow a cargo rack. It was for business, like pizza delivery.
1. 1984 Derbi SL
2. 1984 RD50
3. 1984 flyer side 2
1985 P1 ♦◊ 2.50-16 2.50-16 19x20T Variant SL spoke wheels
1985 F1 ♦♦ 2.50-17 2.50-17 13x35T Variant SLE gold 7-stars
1985 F2 ♦♦ 2.50-17 2.50-17 13x35T Variant SLE-C gold 7-stars
1985 F3 ♦♦ 2.50-17 2.50-17 13x35T Variant SLE-X 7-stars
1985 P5 ♦♦ 2.50-21 2.75-18 20x42T RD50 spoke wheels
The 1985 SLE and SLE-X are the same except for the controls, cables, switches, and wiring. SLE-X has Domino integrated controls and switches. SLE has Derbi and Ideale controls with separate switches. They look 99% the same.
1. 1985 Derbi SLE-X
2. Derbi 1987 DS50 scooter with pedals
The DS50 floorboards fold up for pedaling. The pedals disconnect for motoring.
1986 F2 ♦♦ 2.50-17 2.50-17 13x35T Variant SLE-X 7-stars
1986 F4 ◊♦ 3.00-10 3.00-10 17x34T DS50
1986 P5 ♦♦ 2.50-21 2.75-18 20x42T RD50 spoke wheels
1987 F3 ◊♦ 2.75-16 2.75-16 13x35T Variant Sport 4-stars
1987 F4 ◊♦ 3.00-10 3.00-10 17x34T DS50
1987 P5 ♦♦ 2.50-21 2.75-18 20x42T RD50 spoke wheels
The 1987-89’s have these subtle improvements: Many things are different that appear to be the same. Flat 2-petal case reed valve. Scanimet” all aluminum cylinder. Reverse rotation for better induction, so it has an extra shaft. Both crankshaft nuts are left thread. Old ones are both right. Domino controls with integrated CEV switches, different cables. CEV square speedo and square headlight with hi/lo, not round. New frame – engine swings with rear wheel, takes bumps better. Improved variator with wider range, more torque. Voltage regulator and stronger magneto, brighter lights. Top speed 43 mph! with intake & variator restrictors removed.
1. 1988 Marina Mobili (MMI) flyer with ’88 DS50
2. 1988 Derbi Variant Sport
3. 1989 Derbi DS50 fold-out poster
1988 F3 ♦♦ 2.75-16 2.75-16 13x35T Variant Sport 4-stars
1988 F4 ♦♦ 3.00-10 3.00-10 17x34T DS50
1989 F3 ♦♦ 2.75-16 2.75-16 13x35T Variant Sport 4-stars
1989 F4 ♦♦ 3.00-10 3.00-10 17x34T DS50