Contents: 1. Top End Parts 2. Woodruff Keys
Contents: 3. Engine Nuts 4. Shim Washers
Contents: 5. Circlips 6. Variator Weights
1 T O P E N D P A R T S
Contents: Piston Clips Nuts Cylinder Studs Studs Bushings
P I S T O N P I N C L I P S
132038 clip with tail for 10mm pin $1 for some mopeds
000000 clip with tail for 12mm pin $2 for most mopeds
633848 clip with tail for 13mm pin $2 Motobecane
05-1222 clip with tail for 14mm pin N/A Jawa
132039 clip no tail for 13 or 14 pin $1.50
H E A D or E X H A U S T N U T S
M5nut5 Plain Nut M5 -0.8 x 5 tall $0.20
Morini Tall Nut M5 -0.8 x 20 tall $2.00
M6nut6 Plain Nut M6 -1.0 x 6 tall $0.25
M6nut7 Plain Nut M6 -1.0 x 7 tall $1.00
430300 Brass Nut M6-1.0×10 tall $3.00
M7nut7 Plain Nut M7 -1.0 x 7 tall $0.50
M7nut8 Plain Nut M7 -1.0 x 8 tall $2.00
C Y L I N D E R S T U D S
1100341 cylinder stud M6 x 103 N/A Puch mopeds 1975-86
205001.3.486 cyl. stud M7 x 103 $5.00 Garelli H1
407801 cylinder stud M6 x 106 $5.00 aftermarket for Puch
E1-14 00 cylinder stud M6 x 107 $5.00 Laura M56
000351.3.486 cyl. stud M7 x 113 $5.00 Garelli G2 and V2
28-1112 cylinder stud M6 x 114 $7.00 Jawa mopeds 1970-83+
233716 stepped stud M6/7 x 114 N/A Tomos A55 2002-13
205386 cylinder stud M7 x 114 $3.50 Tomos A3 and A35 1974-06
829680 cylinder stud M6 x 115 $7.00 Laura M48
E X H A U S T or I N T A K E S T U D S
28-1410 stud M5 x 23 $4.00 Jawa exhaust
28-1408 stud M5 x 27 $3.00 Jawa intake
Gstud25 stud M6 x 25 $1.50
Gstud30 stud M6 x 30 $2.00 Tomos A55 exhaust and others
P I S T O N P I N B U S H I N G S
1
2 W O O D R U F F K E Y S
Loose your woodruff key? You’re not alone. These tiny things have a huge importance. When a magneto flywheel key is missing, and the nut is not fully tight, the flywheel can slip and cause the sparks to happen at the wrong time.
Above, some of Myrons keys for sale, made in Germany. L to R: 3.0 x 5.0 (M-86), 2.5 x 3.7 (M-82), 2.0 x 3.7 (M-81), 2.0 x 2.6 (M-80). They look smaller because of the rounded edges, plus the ruler is closer to the camera. These are the “sharp edge type”, but not “knife edge” sharp. The “chamfered edge type” are way more rounded at the circle edges only. A chamfered key will always replace a sharp key, but only sometimes will a sharp key replace a chamfered key, of the same dimensions.
| Part # | # | Description | Price | Applications |
| ###### | ### | ############################# | #### | ################################## |
| …….. W O O D R U F F … K E Y S | diameter is what the full circle would be | |||
| Width x Height x Length x Diameter | CEV/Dansi/Motoplat all 80mm ID flywheels | |||
| ###### | ### | ####### 2 . 0 mm K E Y S ######## | #### | ################################## |
| M-80 | woodruff key 2.0 x 2.8 x 6.9 x 7.0 | $2 | Garelli 1-spd 273.511.0046, CEV 6933 flywheel | |
| M-81 | woodruff key 2.0 x3.7 x 9.4 x 10.0 | $2 | Sachs 504 (KTM), CEV 6949 flywheel | |
| … | ….continued > | … | Sachs 504, sm Bosch 0212 010 001 flywheel | |
| … | ….continued > | … | Kreidler, sm Bosch 0212 010 002 flywheel | |
| … | ….continued > | … | Italjet + Morini, Bosch 0212 010 003 flywheel | |
| … | ….continued > | … | Bat/Trac M56, sm Bosch 0212 010 004 flywheel | |
| ###### | ### | ####### 2 . 5 mm K E Y S ######## | #### | ################################## |
| M-83 | woodruff key 2.5 x3.0 x 9.0 x 10.0 | $5 | Garelli 2-spd 217.018.0015, CEV 6939 flywheel | |
| 127025 | woodruff key 2.5 x3.1 x 9.2 x 10.0 cham. | N/A | Morini MO1,MO2,M1, use M-83 | |
| M-82 | woodruff key 2.5 x3.6 x 9.6 x 10.0 | $2 | Derbi ’76-86 Motoplat & ’86-89 CEV flywheels | |
| ###### | ### | ####### 3 . 0 mm K E Y S ######## | #### | ################################## |
| M-95 | woodruff key 3.0 x3.0 x10.2 x13.0 cham. | N/A | ||
| 4720 | woodruff key 3.0 x3.7 x 9.6 x 10.0 | N/A | Minarelli #4720, CEV 6932 flywheel | |
| M-85 | woodruff key 3.0 x3.6 x 9.5 x 10.0 | $2 | Puch #900.4503, big Bosch flywheel | |
| … | ….continued > | … | Sachs 505 big Bosch flywheel | |
| M-96 | woodruff key 3.0 x5.0 x12.3 x13.0 cham. | $5 | Vespa #000267 flywheel & rear clutch | |
| M-86 | woodruff key 3.0 x5.0 x12.3 x13.0 | $2 | Puch 1-sp clutch | |
| … | ….continued > | … | Batavus M48 big Bosch flywheel | |
| … | ….continued > | … | Batavus/Trac M56 clutch | |
| … | ….continued > | … | Kinetic flywheel & rear pulley | |
| … | ….continued > | … | ||
| M-88 | woodruff key 3.0 x6.5 x15.5 x16.0 | N/A | Batavus/Trac M56 rear pulley | |
| PA50key | woodruff key 3.0 x3.5?x13.2?x16.0 | N/A | Honda Hobbit flywheel, can grind an M-86 | |
| ###### | ### | ####### 4 . 0 mm K E Y S ######## | #### | ################################## |
| M-89 | woodruff key 4.0 x5.0 x12.5 x13.0 | N/A | ||
| M-100 | woodruff key 4.0 x5.5 x18.0 x19.0 | N/A | ||
| M-90 | woodruff key 4.0 x6.5 x15.4 x16.0 | N/A | Garelli 217.036.00 2-spd primary shaft | |
| M-97 | woodruff key 4.0 x6.5 x15.5 x16.0 cham. | N/A | ||
| ###### | ### | ####### M I S C K E Y S ######## | #### | ################################## |
| 200048 | roller/round key D=3 H=4 | $5 | Tomos all years, all flywheels | |
| 044835 | straight key W=5.0 H=5.0 L=12.0 | $2 | Tomos countershaft key (race track shaped) |
3 E N G I N E N U T S
Welcome. These are the engine nuts that go on rotating shafts, rather than stationary nuts, like the head nuts. For head nuts see Engine Top End. Some are very specific and others are more universal.
___________________8 mm N U T S__________________
M8x1 plain nut M8x1.00 x 8 RH hex13 $2 Sachs 504, Batavus/Trac M56 flywheel nut
3618446 flange nut M8x1.00 x 9 RH hex12 n.a. Garelli 000.361.8446 1974-76 1-sp flywheel nut
M8x1.25 plain nut M8x1.25 x 8 RH hex13 $2 Vespa Ciao (non-variator) clutch nut
continued Vespa rear pulley nut, var & non-variator
Vespa thin nut M8x1.25 x 7 RH hex24 n.a. Vespa Bravo/Grande/Si variator nut
Morini thick nut M8x1.25×16 RH hex15 $10 Morini MO1,MO2,M1, Dansi flywheel nut
00 20 161 plain nut M8x1.25 x 8 LH hex13 n.a. Odyssey (Solo) flywheel nut
___________________9 mm N U T S__________________
4430 plain nut M9x1.00 x 6 RH hex14 $4 Minarelli (early) stub plane clutch
5040 castle nut M9x1.00 x 6 RH hex14 n.a. Minarelli clutch (before 1978) stub plane clutch
6270 flange nut M9x1.00×12 RH hex14 $17 Minarelli clutch (1978 to Sep 79) early cone clutch
subtitute 4430 plus Ø9x14x6 spacer tube n.a.
2050118446 flange nut M9x1.00 x 9 RH hex12 n.a. Garelli 205.011.8446 1977-on 1-sp flywheel nut
substitute 4430 ground to12hex + Ø9x12x3 spacer n.a.
___________________1 0 mm N U T S__________________
???? thin nut M10x1.00 x 6 RH hex14 $8 Derbi 1976-86 variator/clutch nut
???? thin nut M10x1.00 x 6 RH hex17 $4 Sachs 504 & 505 and Batavus M48 clutch nut
4840 thin nut M10x1.00 x 7 RH hex17 $3 Minarelli sprocket nut
49812 flange nut M10x1.00 x 7 RH hex21 $7 Peugeot clutch nut
9012943 flange nut M10x1.00 x 8 RH hex14 $5 Puch flywheel nut
M10x1 plain nut M10x1.00×10 RH hex17 $2 Sachs 505 flywheel nut
continued Batavus M48 flywheel nut
continued Solo (Colombia) flywheel nut
continued Solo (Odyssey) and Solo (Colombia) clutch nut
continued Puch 1-spd clutch nut
continued Batavus/Trac M56 rear pulley nut
143195 special M10x1.00×12 LH hex32 $10 Motobecane flywheel 1980-later
17429 special M10x1.00 LH square 10 $12 Motobecane flywheel 1974-1979
2170180015 thick nut M10x1.00×14 RH hex14 $7 Garelli 2-spd 217.018.0015, flywheel nut
0F02600401 plain nut M10x1.00 x 8 LH hex14 $12 Derbi rear pulley 1986-91
continued Derbi flywheel 1986-91 “Start” engine
46768 thick nut M10x1.00×15 RH hex16 $7 Peugeot flywheel nut
???? thick nut M10x1.00×18 RH hex17 n.a. Derbi flywheel 1976-1985
0F02610401 special M10x1.00×30 LH hex17 n.a. Derbi clutch 1986-91 “Start” flat case reed
???? plain nut M10x1.25 x 8 RH hex14 $2 Honda PA50 clutch and flywheel nut
H210-00-50 plain nut M10x1.25 x 8 RH hex14 $3 Indian flywheel nut
6275 plain nut M10x1.25 x 6 LH hex15 $1 Minarelli clutch (after Sep 1979) cone clutch
4750 thick nut M10x1.25×14 RH hex15 $10 Minarelli flywheel nut
___________________1 1 mm N U T S__________________
17454 flange nut M11x1.00 x 8 RH hex14 $6 Motobecane clutch nut (non-var)
17455 special M11x1.00×21 RH hex14 $12 Motobecane clutch nut (variator)
___________________1 2 mm N U T S__________________
???? thin nut M12x1.00 x 7 RH hex19 $3 Garelli clutch nut
???? thin nut M12x1.00 x 7 RH hex19 $3 Sachs sprocket nut
???? thin nut M12x1.25 x 6 RH hex17 n.a. Morini MO-1 sprocket nut
???? thin nut M12x1.25×10 RH hex19 $3 Batavus/Trac M56 sprocket nut
___________________1 4 mm N U T S__________________
???? thin nut M14x1.50 x 5 RH hex19 $8 Derbi rear pulley 1976-1986
___________________1 6 mm N U T S__________________
9022922 thin nut M16x1.50 x 8 RH hex24 $7 Puch 2-spd clutch nut
4. W A S H E R S a n d S H I M S
10 x 16 x 2
Shim (precision) washers, in blue, are always required. They are all the same size for every machine.
Adjustment shim washers, in black, are “as required”. There are different sizes for each machine.
10.1 x 16.0 x 2.00 0.0.0.0.223469 $$3 Tomos A35-A55 2-speed trans cover, rear
10.1 x 14.0 x 0.20 0.0.0.0.209075 $$5 Tomos A3-A35-A55 2-spd trans cover, rear
10.1 x 14.0 x 0.50 0.0.0.0.209076 $$5 Tomos A3-A35-A55 2-spd trans cover, rear
14 x 20 x 2
10.1 x 20.0 x 0.60 321.1.13.637.1 $$7 Puch ZA50 2-speed trans cover, rear
10.1 x 20.0 x 0.80 350.2.13.642.1 $$8 Puch ZA50 2-speed trans cover, rear
10.1 x 20.0 x 1.00 321.2.13.637.1 $$7 Puch ZA50 2-speed trans cover, rear
10.1 x 21.8 x 0.80.0.0.0.0.0 4830 $$5 Minarelli V1 1-speed sprocket, under nut
10.1 x 22.0 x 0.6 0.0.0.00.0 5030 $$5 Minarelli V1 1-speed clutch, under nut
10.1 x 24.0 x 0.8 0.0.o0.0 491088 $$5 Laura M56 drive shaft
12.1 x 16.0 x 0.1 0000000 0000000 N/A Kreidler clutch drum
12.1 x 16.0 x 0.2 0000000 0000000 N/A Kreidler clutch drum
12.1 x 16.0 x 0.3 0000000 0000000 N/A Kreidler clutch drum
12.1 x 17.0 x 0.4 0.0.00.0.0 5730 N/A Minarelli V1 1-speed idler shaft
12.1 x 24.0 x 0.5 0000000 480899 $7 Laura M48 clutch washer (25 & 30mph)
12.1 x 24.0 x 0.8 0000000 480899a $5 Laura M48 clutch washer (as required)
12.05×23.95×0.50000000 490814 $7 Laura M56 clutch washer
12.05×23.95×0.80000000 490813 $5 Laura M56 clutch washer (as required)
15×21.7x.5
14.1 x 20.0 x 2.00 0.0.0.0.223468 $$4 Tomos A35-A55 2-speed clutch, inner
15.1 x 21.7 x 0.50 0.0.0.0.014562 $$4 Motobecane clutch, variator and 1-speed
15.1 x 21.7 x 0.10 0.0.0.0.014931 $$8 Motobecane clutch, variator and 1-speed
15.1 x 21.7 x 0.25 0.0.0.0.014932 $$5 Motobecane clutch, variator and 1-speed
15.1 x 21.7 x 0.45 0.0.0.0.014933 $$5 Motobecane clutch, variator and 1-speed
15 x 22 x 0.8
15.1 x 22.0 x 0.60 321.1.13.627.1 $$8 Puch ZA50 2-speed trans cover, front
15.1 x 22.0 x 0.80 321.2.13.627.1 $$7 Puch ZA50 2-speed trans cover, front
15.1 x 22.0 x 1.00 321.3.13.627.1 $$8 Puch ZA50 2-speed trans cover, front
15.1 x 22.0 x 1.10 0.0.0.901.3963 $10 Puch E50 1-speed clutch, outer
15.1 x 22.0 x 1.30 0.0.0.901.3929 $$8 Puch E50 1-speed clutch, outer
15.1 x 22.0 x 1.50 0.0.0.901.3924 $$5 Puch E50 1-speed clutch, outer
15.1 x 22.0 x 1.70 0.0.0.901.3930 $$5 Puch E50 1-speed clutch, outer
15.1 x 22.0 x 1.80 0.0.0.901.3028 $$3 Puch E50 1-speed clutch, outer
15.1 x 22.0 x 1.85 0.0.0.901.3972 $$3 Puch E50 1-speed clutch, outer
15.1 x 22.0 x 1.90 0.0.0.901.3942 $$2 Puch E50 1-speed clutch, outer
15.1 x 22.0 x 1.95 0.0.0.901.3973 $$2 Puch E50 1-speed clutch, outer
15.1 x 22.0 x 2.00 0.0.0.901.3970 $$5 Puch E50 1-speed clutch, outer
15.1 x 22.0 x 2.10 0.0.0.901.3049 $$5 Puch E50 1-speed clutch, outer
15.1 x 22.0 x 2.20 0.0.0.901.3971 $$5 Puch E50 1-speed clutch, outer
16.1 x 26.0 x 0.60 0.0.0.002 5790 $$5 Minarelli V1 pedal shaft
16 x 24 x 0.50
16.2 x 24.0 x 1.00 0.0.0.0.206391 $$3 Tomos A3-A35-A55 2-spd pedal shaft
16.2 x 24.0 x 0.20 0.0.0.0.209087 $$8 Tomos A3-A35-A55 2-spd pedal shaft
16.2 x 24.0 x 0.50 0.0.0.0.200175 $$8 Tomos A3-A35-A55 2-spd pedal shaft
16.2 x 27.8 x 1.00 321.1.13.624.1 $10 Puch ZA50 2-speed main shaft, inner
16.2 x 30.0 x 0.40 0.0.00.0.45818 $$7 Peugeot 102-103 clutch
16.2 x 30.0 x 0.60 0.0.0.00.45819 $$7 Peugeot 102-103 clutch
16.2 x 30.0 x 0.80 0.0.0.00.45820 $$7 Peugeot 102-103 clutch
16.2 x 30.0 x 1.00 0.0.0.00.45821 $$7 Peugeot 102-103 clutch
16.2 x 32.0 x 2.00 ..200001.7.187 N/A Garelli H1/H2 pedal shaft
16 x 30 x 1.00
17.2 x 24.0 x 0.10 0.0.0.0.212957 $$5 Tomos pre-1986 A3 crank, left or right
17.2 x 24.0 x 0.15 0.0.0.0.212958 $$8 Tomos pre-1986 A3 crank, left or right
17.2 x 24.0 x 0.20 0.0.0.0.212959 $$9 Tomos pre-1986 A3 crank, left or right
17.2 x 24.0 x 0.50
17.2 x 24.0 x 1.10 0.0.0.901.3943 $10 Puch E50 1-speed clutch, inner
17.2 x 24.0 x 1.30 0.0.0.901.3927 $$7 Puch E50 1-speed clutch, inner
17.2 x 24.0 x 1.50 0.0.0.901.3923 $$7 Puch E50 1-speed clutch, inner
17.2 x 24.0 x 1.70 0.0.0.901.3928 $$5 Puch E50 1-speed clutch, inner
18.2 x 24.0 x 0.05 0.0.0.900.3992 $10 Puch ZA50 2-speed crank, left
18.2 x 24.0 x 0.10 0.0.0.900.3922 $$8 Puch ZA50 2-speed crank, left
18.2 x 24.0 x 0.20 0.0.0.900.3923 $10 Puch ZA50 2-speed crank, left
18.2 x 24.0 x 0.30 0.0.0.900.3907 $$4 Puch ZA50 2-speed crank, left
18.5 x 24.0 x 0.12
18.5 x 24.0 x 0.20
19.2 x 25.8 x 0.10 0.0. old209073 $$7 Tomos A3 2-speed clutch
19.2 x 25.8 x 0.20 0.0. old209119 $$7 Tomos A3 2-speed clutch
19.2 x 26.0 x 0.30 0.0.0.0 209073 $$5 Tomos A35 2-speed clutch
19.2 x 26.0 x 0.50 0.0.0.0 209119 $$4 Tomos A35 2-speed clutch
22 x 29 x 0.5
20.0 x 29.0 x 0.5 0.00.0.00 69280 $$5 Leleu front wheel hub dust ring
21.0 x 27.0 x 0.10 0.0.00.0.25892 $$8 Puch ZA50 2-speed crank, right
21.0 x 27.0 x 0.20 0.0.00.25892.2 $$7 Puch ZA50 2-speed crank, right
22.0 x 29.0 x 0.5 0.00.0.00 69680 $$8 Leleu rear wheel hub dust ring
27.0 x 39.9 x 0.30 0.0.0.0. 37742 $$8 Peugeot 102-103 case, right
28.0 x 46.9 x 0.40 0.0.0.0. 37034 $$7 Peugeot 102-103 case, left
S P E C I A L S H A P E S
Peugeot washer
Puch thrust plate
thrust plate 4.2 321.5.13.6471 $$8 Puch ZA50 2-speed main shaft
thrust plate 4.4 321.1.13.6471 $$8 Puch ZA50 2-speed main shaft
thrust plate 4.6 321.2.13.6471 $$8 Puch ZA50 2-speed main shaft
thrust plate 4.8 321.3.13.6471 $$8 Puch ZA50 2-speed main shaft
thrust plate 5.0 321.4.13.6471 $$8 Puch ZA50 2-speed main shaft
thrust plate 5.2 321.6.13.6471 $$8 Puch ZA50 2-speed main shaft
thrust washer 1.5 0.0.0.45795 $$8 Peugeot 102-103 clutch, variator & 1-spd
thrust washer 1.8 0.0.0.47610 $$8 Peugeot 102-103 clutch, variator & 1-spd
5. C I R C L I P S
Circlips are circular clips. Officially they are known as retaining rings. The “size” is not the actual size, but rather the size of the shaft or hole that it is for. For external rings, the shaft size “For OD” is more than the groove OD, which is more than the actual ring ID. For internal rings, the hole size “For ID” is less than the groove ID, which is less than the actual ring OD.
There is a “click” sound when the spring-loaded clip-ring snaps into the clip-ring groove. The ring should be free to rotate, but with some friction from the spring tension. If the ring is too big it will rotate with no friction. If the ring is too small it will have to be over-stretched to get on, and will rotate with much friction. That’s how to tell if a clip-ring fits properly, by feeling, hearing and seeing.
External Retaining Ring
External Retaining Rings “circlips” or “snap rings”
10 x 1.0 $2 Puch #900.4610, 1-speed clutch
10 x 1.0 $2 Derbi #00.471.10, seat hinge pin
12 x 1.0 $2 Batavus #841505, M56 right crank shaft end
13 x 1.0 $2 Sachs #0245.121.000, 504, 505 main shaft
14 x 1.0 $1 Minarelli #6000, V1 after Sep 79 with cone clutch
15 x 1.0 $2 Puch #900.4619, 1-speed clutch outer
15 x 1.0 $2 Minarelli #4860, V1 right drive shaft
15 x 1.0 $2 Derbi #00.471.15, 75-86 Variant drive shaft
16 x 1.0 $2 Puch #900.4616, drive sprocket
16 x 1.0 $2 Motobecane #14158, pedal shaft outer, before pulley
16 x 1.0 $2 Tomos #032073, pedal shaft
16 x 1.5 N/A Sachs #0245.020.001, 505 pedal shaft
17 x 1.0 $2 Puch #900.4617, 1-spd and 2-spd clutch inner
20 x 1.0 $2 Tomos #032077, 2-speed counter shaft
Motobecane 14561
Motobecane 16566
Low-Clearance External Retaining Rings
13 x 1.0 $2 Motobecane
15 x 1.0 $2 Motobecane #14561, left crankshaft var. and non-var.
16 x 1.0 $2 Motobecane #16566, pedal shaft inner, after pulley
E-clips for jet needles
Side-Mount External Retaining Rings “E-clips”
1.4-2 x 0.3 $1 for 1.2 groove, this is Myrons smallest item!
2-2.5 x 0.4 $2 for 1.5 groove, Dellorto PHVA needle, 2.0 mm
2.5-3 x 0.5 $1 for 1.9 groove,
3 – 4 x 0.6 $1 for 2.3 groove,
4 – 5 x 0.6 $1 for 3.2 groove,
Side Mount External Retaining Rings
5 – 7 x 0.7 $1 for 4.0 groove,
6 – 8 x 0.7 $1 for 5.0 groove,
7 – 9 x 0.7 $2 for 6.0 groove, Puch #900.4606, 1-spd starter shaft
7 – 9 x 0.7 $2 for 6.0 groove, Derbi #00.473.08, clutch shoes
While the other clips are named by the shaft size, these E-clips are often named by the groove size. Since they install from the side they don’t have to spread over the shaft. So the shaft size does not matter. Puch calls the “7-9 x 0.7” e-clip “BZ-circlip 6”. The groove is 6.0mm but the shaft is 7.6mm.
Low-Clearance Side-Mount
External Retaining Ring
Low-Clearance Side-Mount External Retaining Rings “C-clips”
14 x 1.0 $2 Puch #900.4766, 1-speed starter shaft
Internal Retaining Ring
Internal Retaining Rings “inner circlips”
12 x 1.0 $2 Peugeot #22309, piston clip
15 x 1.0
20 x 1.0
32 x 1.2 $5 Derbi #00.472.32, clutch hub-drum
Garelli 275.955.00
40 x 1.7 $5 Puch #900.4740, 2-speed drive shaft
40 x 1.7 $5 Garelli #000315.1.193, vert. 2-sp left crankshaft
42 x 1.7 $5 Batavus #841512, Laura M48 left crankshaft
42 x 1.75 $5 Garelli #274.030.00, vert. 2-sp right drive shaft
49 x 1.2 N/A Garelli #275.955.00, horizontal 1-speed clutch
42 x 1.7 $5 the installed outer diameter is 49, the free OD is 50
Motobecane 14563
Low-Clearance Internal Retaining Rings
22 x 1.0 $2 Motobecane #14563, var. and non-var. clutch-pulley
40 x ?.? $5 Puch #901.4656, 1-speed drive shaft
6. V A R I A T O R P A R T S
Table of Variator Rollers
Now, do you feel like an engine nut?
Shaun has been organizing moped parts since 1986, when he made this seal and bearing chart on his Commodore 64. This actual paper was in daily use for 26 years, at Royal Cyclery and Myrons Mopeds!