| Plate Ref. Number. | Models | Part No. | Description | Number per set |
| 1 | Bantam | 21-4 | Cylinder barrel stud nut | 4 |
| 2 | Bantam | 2-923 | Cylinder barrel stud washer | 4 |
| 3 | Bantam | 90-2 | Cylinder head | 1 |
| 4 | Bantam | 66-102 | Sparking plug washer | 1 |
| 5 | Bantam | 65-112 | Sparking plug | 1 |
| 6 | Bantam | 90-85 | Gudgeon pin circlip | 2 |
| 7 | Bantam | 90-84 | Gudgeon pin | 1 |
| 8 | Bantam | 90-136 | Piston only with pegs (Standard) | 1 |
| | Bantam | 90-276 | Piston only with pegs (1st oversize) | 1 |
| | Bantam | 90-435 | Piston only with pegs (2nd oversize) | 1 |
| 9 | Bantam | 90-9 | Compression ring | 2 |
| | Bantam | 90-278 | Compression ring (1st oversize) | 2 |
| | Bantam | 90-394 | Compression ring (2nd oversize) | 2 |
| 10 | Bantam | 90-123 | Piston ring peg | 2 |
| 11 | Bantam | 90-162 | Crankcase with fixed fittings (offside) | 1 |
| 12 | Bantam | 90-111 | Cylinder barrel stud | 4 |
| 13 | Bantam | 2-2894 | Dipstick washer (fibre) | 1 |
| 14 | Bantam | 90-112 | Dipstick | 1 |
| 15 | Bantam | 90-117 | Primary chain cover gasket | 1 |
| 16 | Bantam | 90-139 | Primary chain cover complete | 1 |
| 17 | Bantam | 90-124 | Primary chain cover screw (long) | 2 |
| 18 | Bantam | 90-262 | Primary chain cover and drain plug washer (fibre) | 7 |
| 19 | Bantam | 89-3208 | Gearchange lever rubber | 1 |
| 20 | Bantam | 90-268 | Gearchange lever | 1 |
| 21 | Bantam | 90-135 | Kickstart pedal rubber | 1 |
| 22 | Bantam | 90-91 | Kickstart pedal | 1 |
| 23 | Bantam | 21-62 | Gearchange lever bolt | 1 |
| | Bantam | 21-62 | Kickstart pedal bolt | 1 |
| 24 | Bantam | 2-2580 | Gearchange lever bolt washer | 1 |
| | Bantam | 2-2580 | Kickstart pedal bolt washer | 1 |
| 25 | Bantam | 21-29 | Gearchange lever bolt nut | 1 |
| | Bantam | 21-29 | Kickstart pedal bolt nut | 1 |
| 26 | Bantam | 90-125 | Primary chain cover screw (short) | 1 |
| 27 | Bantam | 65-3062 | Primary chain cover screw | 2 |
| 28 | Bantam | 90-10 | Crankshaft bearing | 1 |
| 29 | Bantam | 90-108 | Crankcase dowel bush | 2 |
| 30 | Bantam | 90-75 | Mainshaft bearing circlip | 1 |
| 31 | Bantam | 90-11 | Mainshaft bearing | 1 |
| 32 | Bantam | 90-368 | Clutch cover screw | 3 |
| 33 | Bantam | 29-3319 | Clutch cover screw washer (shakeproof) | 3 |
| 34 | Bantam | 90-336 | Clutch cover | 1 |
| 35 | Bantam | 90-27 | Clutch casing snap ring | 1 |
| 36 | Bantam | 90-341 | Clutch spring cup plate | 1 |
| 37 | Bantam | 90-83 | Layshaft bush | 1 |
| 38 | Bantam | 90-82 | Layshaft gear (32T) | 1 |
| | Bantam | 90-448 | Layshaft gear (28T) (close ratio) (as required) | 1 |
| 39 | Bantam | 90-81 | Layshaft gear (25T) | 1 |
| | Bantam | 90-449 | Layshaft sliding gear (25T) (close ratio) (as required) | 1 |
| | Bantam | 90-457 | Layshaft sliding gear (26T) (wide ratio) (as required) | 1 |
| 40 | Bantam | 90-351 | Layshaft with gear (19T) | 1 |
| | Bantam | 90-476 | Layshaft with gear (23T) (close ratio) (as required) | 1 |
| 41 | Bantam | 90-353 | Layshaft gear only (19T) | 1 |
| | Bantam | 90-447 | Layshaft gear (23T) (close ratio) (as required) | 1 |
| 42 | Bantam | 90-50 | Gear selector fork shaft | 1 |
| 43 | Bantam | 90-51 | Gear selector fork spring ring | 1 |
| 44 | Bantam | 90-54 | Gear selector fork spring cup | 1 |
| 45 | Bantam | 90-53 | Gear selector fork spring | 1 |
| 46 | Bantam | 90-88 | Kickstart quadrant spindle | 1 |
| 47 | Bantam | 90-179 | Kickstart quadrant | 1 |
| 48 | Bantam | 90-89 | Kickstart quadrant spring | 1 |
| 49 | Bantam | 90-90 | Kickstart quadrant spring plate | 1 |
| 50 | Bantam | 90-58 | Gear selector arm swivel pin (not sold separately) | 1 |
| | Bantam | 90-56 | Gear selector arm bracket complete | 1 |
| 51 | Bantam | 90-57 | Gear selector arm bracket (not sold separately) | 1 |
| 52 | Bantam | 90-173 | Gear selector arm | 1 |
| 53 | Bantam | 90-63 | Gear selector arm bracket lockwasher | 2 |
| 54 | Bantam | 90-62 | Gear selector arm bracket screw | 2 |
| 55 | Bantam | 90-94 | Gear indicator lever spindle | 1 |
| 56 | Bantam | 1-6008 | Gear indicator lever bolt | 1 |
| 57 | Bantam | 90-93 | Gear indicator lever | 1 |
| 58 | Bantam | 1-4616 | Gear indicator lever bolt nut | 1 |
| 59 | Bantam | 90-98 | Clutch push rod (short) | 1 |
| 60 | Bantam | 90-99 | Clutch push rod (long) | 1 |
| 61 | Bantam | 90-132 | Clutch push bush (rubber) | 1 |
| 62 | Bantam | 90-61 | Gear selector swivel pin peg | 1 |
| 63 | Bantam | 90-60 | Gear selector arm spring cup | 1 |
| 64 | Bantam | 90-59 | Gear selector arm retaining spring | 1 |
| 65 | Bantam | 90-83 | Layshaft bush | 1 |
| 66 | Bantam | 90-52 | Gear selector fork peg (not sold separately) | 1 |
| | Bantam | 90-190 | Gear selector fork and peg | 1 |
| 67 | Bantam | 90-49 | Gear selector fork (not sold separately) | 1 |
| 68 | Bantam | 90-74 | Mainshaft gear (22T) | 1 |
| | Bantam | 90-458 | Mainshaft sliding gear (21T) (wide ratio) (as required) | 1 |
| 69 | Bantam | 90-65 | Mainshaft primary gear (28T) | 1 |
| | Bantam | 90-474 | Primary drive gear (close ratio) (as required) (24T) | 1 |
| 70 | Bantam | 90-67 | Mainshaft primary gear bush | 2 |
| 71 | Bantam | 89-3006 | Mainshaft oil seal | 1 |
| 72 | Bantam | 90-72 | Mainshaft oil seal housing | 1 |
| 73 | Bantam | 90-71 | Gearbox sprocket distance sleeve | 1 |
| 74 | Bantam | 90-68 | Gearbox sprocket (15T) (Standard) | 1 |
| | Bantam | 90-473 | Gearbox sprocket (16T) (Competition only) | 1 |
| | Bantam | 90-299 | Gearbox sprocket (14T) (Competition only) | 1 |
| 75 | Bantam | 90-70 | Gearbox sprocket lockwasher | 1 |
| 76 | Bantam | 90-172 | Gearbox sprocket nut | 1 |
| 77 | Bantam | 90-256 | Flywheel magneto cam screw (Wico Pacy) | 1 |
| 78 | Bantam | 90-258 | Flywheel magneto cam screw washer (Wico Pacy) | 1 |
| 79 | Bantam | 90-257 | Flywheel magneto cam screw washer (Wico Pacy) | 1 |
| 80 | Bantam | 90-444 | Flywheel and generator complete (Wico Pacy) | 1 |
| 81 | Bantam | 11B-55AAA | Generator flywheel only (Wico Pacy) | 1 |
| | Bantam | 90-295 | Generator fixing stud (Lucas generator) | 4 |
| | Bantam | 90-296 | Generator (Lucas) | 1 |
| | Bantam | 21-29 | Generator fixing stud nut (Lucas) | 2 |
| | Bantam | 90-346 | Generator fixing stud washer (Lucas) | 4 |
| | Bantam | 90-297 | Generator extracting screw (Lucas) | 1 |
| | Bantam | 90-298 | Rotor fixing screw (Lucas) | 1 |
| | Bantam | 90-118 | Generator inspection cover (Lucas) | 1 |
| | Bantam | 1-4606 | Generator inspection cover screw (Lucas) | 2 |
| 82 | Bantam | 90-125 | Crankcase fixing screw (long) | 2 |
| 83 | Bantam | 89-366 | Clutch adjusting screw locknut | 1 |
| 84 | Bantam | 90-105 | Clutch adjusting screw | 1 |
| 85 | Bantam | 2-498 | Mainshaft oil seal housing screw | 5 |
| 86 | Bantam | 29-3319 | Mainshaft oil seal housing washer (shakeproof) | 5 |
| 87 | Bantam | 90-106 | Clutch operating lever cap | 1 |
| 88 | Bantam | 90-184 | Clutch operating lever bush | 1 |
| 89 | Bantam | 90-261 | Crankcase drain plug | 1 |
| 90 | Bantam | 90-122 | Clutch operating lever spring | 1 |
| 91 | Bantam | 90-180 | Clutch operating lever complete | 1 |
| 92 | Bantam | 90-272 | Mainshaft thrust plate gasket | 1 |
| 93 | Bantam | 90-133 | Mainshaft bearing thrust plate | 1 |
| 94 | Bantam | 90-73 | Mainshaft oil seal housing gasket | 1 |
| 95 | Bantam | 90-64 | Gearbox mainshaft | 1 |
| | Bantam | 90-445 | Gearbox mainshaft (close ratio) (as required) | 1 |
| 96 | Bantam | 90-76 | Chain chainwheel distance bush | 1 |
| 97 | Bantam | 90-24 | Chain chainwheel circlip | 1 |
| 98 | Bantam | 90-40 | Kickstart pinion spring retainer | 1 |
| 99 | Bantam | 90-39 | Kickstart pinion spring | 1 |
| 100 | Bantam | 90-177 | Kickstart pinion | 1 |
| 101 | Bantam | 90-134 | Primary chain | 1 |
| 102 | Bantam | 90-120 | Crankshaft sprocket (17T) | 1 |
| 103 | Bantam | 90-163 | Crankcase with fixed fittings (nearside) (Wico Pacy generator) | 1 |
| | Bantam | 90-164 | Crankcase with fixed fittings (nearside) (Lucas generator) | 1 |
| 104 | Bantam | 90-125 | Crankcase fixing screw (long) | 2 |
| 105 | Bantam | 90-12 | Gearbox sleeve pinion bearing | 1 |
| 106 | Bantam | 35-1896 | Crankshaft sprocket key | 1 |
| 107 | Bantam | 90-121 | Crankshaft sprocket lockwasher | 1 |
| 108 | Bantam | 90-340 | Crankshaft nut | 1 |
| 109 | Bantam | 90-152 | Crankshaft shim (.003") (as required) | — |
| | Bantam | 90-153 | Crankshaft shim (.004") (as required) | — |
| | Bantam | 90-154 | Crankshaft shim (.005") (as required) | — |
| | Bantam | 90-155 | Crankshaft shim (.010") (as required) | — |
| 110 | Bantam | 90-506 | Flywheel spindle (nearside) (fitted on and after Engine No. BD2/101) (not sold separately) | 1 |
| | Bantam | 90-605 | Flywheel spindle (nearside) (fitted on and after Engine No. BD2L/101) (not sold separately) | 1 |
| 111 | Bantam | 90-171 | Flywheel cover plate | 1 |
| 112 | Bantam | 90-596 | Flywheel with spindle (nearside) (fitted on and after Engine No. BD2/101) (Wico Pacy) | 1 |
| | Bantam | 90-603 | Flywheel with spindle (nearside) (fitted on and after Engine No. BD2L/101) (Lucas) | 1 |
| 113 | Bantam | 90-499 | Big end thrust washer (fitted on and after Engine Nos. BD2/101 and BD2L/101) | 2 |
| | Bantam | 90-601 | Connecting rod with crankpin, rollers and gudgeon pin bush | 1 |
| 114 | Bantam | 90-497 | Connecting rod only (fitted on and after Engine Nos. BD2/101 and BD2L/101) (not sold separately) | 1 |
| 115 | Bantam | 90-498 | Crankpin (fitted on and after Engine Nos. BD2/101 and BD2L/101) (not sold separately) | 1 |
| 116 | Bantam | 90-594 | Big end roller (fitted on and after Engine Nos. BD2/101 and BD2L/101) (not sold separately) | 14 |
| 117 | Bantam | 90-597 | Flywheel complete (offside) (fitted on and after Engine No. BD2/101) (Wico Pacy) | 1 |
| | Bantam | 90-604 | Flywheel complete (offside) (fitted on and after Engine No. BD2L/101) (Lucas) | 1 |
| 118 | Bantam | 90-505 | Flywheel spindle (offside) (fitted on and after Engine Nos. BD2/101 and BD2L/101) (not sold separately) | 1 |
| 119 | Bantam | 89-3023 | Crankshaft bearing | 1 |
| 120 | Bantam | 90-284 | Crankshaft oil seal | 1 |
| 121 | Bantam | 2-2894 | Drain plug washer (fibre) | 1 |
| 122 | Bantam | 90-115 | Drain plug | 1 |
| 123 | Bantam | 90-283 | Clutch chainwheel thrust washer | 1 |
| 124 | Bantam | 90-28 | Clutch hub | 1 |
| 125 | Bantam | 90-37 | Clutch driven plate | 2 |
| 126 | Bantam | 90-34 | Clutch driving plate complete | 3 |
| 127 | Bantam | 90-32 | Clutch actuating plate | 2 |
| 128 | Bantam | 90-47 | Gear selector arm spring socket | 1 |
| 129 | Bantam | 90-46 | Gear selector arm spring | 1 |
| 130 | Bantam | 90-241 | Gear selector arm ball | 1 |
| 131 | Bantam | 90-29 | Clutch spring | 6 |
| 132 | Bantam | 90-30 | Clutch spring cup | 6 |
| 133 | Bantam | 15-39 | Mainshaft washer | 1 |
| 134 | Bantam | 90-340 | Mainshaft nut | 1 |
| 135 | Bantam | 90-1 | Cylinder barrel | 1 |
| 136 | Bantam | 90-273 | Cylinder base gasket | 1 |
| 137 | Bantam | 89-149 | Flywheel magneto key | 1 |
| 138 | Bantam | 90-246 | Flywheel magneto cam key | 1 |
| | Bantam | 90-294 | Flywheel spindle peg (Lucas generator) | 1 |
| 139 | Bantam | 90-243 | Crankshaft distance collar | 1 |
| 140 | Bantam | 89-3023 | Crankshaft bearing | 1 |
| 141 | Bantam | 90-265 | Exhaust pipe union nut | 1 |
| 142 | Bantam | 90-3002 | Exhaust pipe union nut washer | 1 |
| 143 | Bantam | 90-3024 | Exhaust pipe (Standard rigid and spring frame) | 1 |
| | Bantam | 90-3033 | Exhaust pipe (Competition rigid and spring frame) | 1 |
| 144 | Bantam | 65-2158 | Crankcase screw | 9 |
| 145 | Bantam | 90-147 | Crankcase oil seal | 1 |
| | Bantam | 90-284 | Crankcase oil seal (Lucas generator) | 1 |
| 146 | Bantam | 28-2080 | Crankcase cover grease nipple (nearside) | 1 |
| | Bantam | 15-5290 | Crankcase cover grease nipple (offside) (Lucas) | 1 |
| 147 | Bantam | 90-183 | Crankcase cover with fixed fittings (nearside) (Wico Pacy) | 1 |
| | Bantam | 90-162 | Crankcase cover with fixed fittings (offside) (Lucas) | 1 |
| 148 | Bantam | 90-248 | Crankcase cover fixing screw (short) | 2 |
| 149 | Bantam | 90-260 | Flywheel magneto fixing nut washer | 1 |
| 150 | Bantam | 90-259 | Flywheel magneto fixing nut | 1 |
| 151 | Bantam | 65-2158 | Flywheel magneto fixing screw | 3 |
| 152 | Bantam | 2-2580 | Flywheel magneto fixing screw washer | 3 |
| 153 | Bantam | 90-285 | Crankcase generator seal | 1 |
| 154 | Bantam | 33-1118 | Release valve | 1 |
| 155 | Bantam | 90-287 | Cylinder head (Competition) | 1 |
| 156 | Bantam | 90-450 | Mainshaft oil seal housing (use only with 90-299 14T rear chain sprocket) | 1 |
| 157 | Bantam | 65-3427 | Kickstart crank pedal (Competition) | 1 |
| 158 | Bantam | 29-5156 | Kickstart pedal bolt (Competition) | 1 |
| 159 | Bantam | 66-4707 | Kickstart pedal bolt washer (Competition) | 1 |
| 160 | Bantam | 2-220 | Kickstart crank spring bolt | 1 |
| 161 | Bantam | 29-541 | Kickstart crank spring bolt washer | 1 |
| 162 | Bantam | 65-3428 | Kickstart crank pedal spring | 1 |
| 163 | Bantam | 90-348 | Kickstart crank only | 1 |
| 164 | Bantam | 90-347 | Kickstart crank complete | 1 |
| 165 | Bantam | 90-130 | Connecting rod gudgeon pin bush | 1 |
| 166 | Bantam | 90-110 | Crankcase dowel | 2 |
| 167 | Bantam | 90-175 | Clutch chainwheel complete | 1 |
| 168 | Bantam | 90-109 | Dowel bush | 2 |
| 169 | Bantam | 66-102 | Exhaust lifter washer (Competition) | 1 |
| 170 | Bantam | 90-55 | Gearchange selector fork circlip | 1 |
| 171 | Bantam | 90-346 | Crankcase screw washer | 11 |
| 172 | Bantam | 89-5015 | Clutch push rod ball | 1 |
