singles - engine parts
AJS-Matchless / BSA Kickstart rubber (set of 3)Condition: N.O.S.
Fits: Burman gearboxes -1958Made in England
(Sticker not included)€ 15,00
B25 Starfire valves & guides set (68-0661 / 68-0662 / 40-931-32)condition: NOS (spots on photos are dried conservation oil)
fits B25 250cc unit single
1967 - 1971€ 67,00
Boyer Ignition kit for BSA + Triumph 250 Singles (KIT00060)Condition: NOS
6 volt
Fits: Singles -1970
Made in England€ 144,00
BSA + Triumph C15-DBD34GS Valve spring set, Partno. 40-1068, 40-0169Condition: N.O.S.
Fits: C15-SS80-B40-B44-B50-DBD34GS 1956-1972Made in England by Terry's
(Sticker not included)€ 33,00
BSA 250 - 500 Singles Pair of tappets inlet + exhaust (71-2513)Condition: NOS
Fits all B25 - B50T - SS - MX 1971 -
Genuine BSA part with Stelite plates
Made in England
(Sticker not included)€ 258,00
BSA 250 C25 B25 crankshaft OPN 40-1024Condition: used
Journal size 36.3 mm = 0.10 inch U.S.
Bearings available
Will fit unit 250 motors 1967-
OPN 40-1024€ 246,00
BSA 250 singles B25 & C25 Cylinder head c/w new Alpha valves & guides (40-929)Condition: Used
1968 -
Casting no: PBM40930
Made in England€ 268,00
BSA B+M types Gearbox sprocket 18-19T (60-3506)Condition: N.O.S.
Fits: B31-B32-M20-M21 Plunger types only
5/8" x 1/4" (520) chain only
Made in England€ 44,00
BSA B25 -C25- B44 - B50 layshaft + 4th gear 14T opn. 41-3068 (57-2667)Condition: NOS Made in England
Fits ; BSA + Triumph Unit-singles 1967-€ 156,00
BSA B25 / C25 Triumph TR25W Oversize Piston assy complete (40-970 / 70-7998)Condition: NOS
C.R 10:1 .020" oversize (67.5 mm) .040" oversize (68 mm)
Fits all Unit Singles 1967 - 1973
Made by Hepolite€ 86,00
BSA B25 / Triumph TR25W Clutch repair kit, Partno. 57-2726, 57-2725, 57-2727, 57-7856Condition: N.O.S.
Consists of: 4 driving plates + 5 driven plates + 4 springs + 1 cover gasket
Fits: Unit singles 1971-Made in England€ 98,00
BSA B25 Barracuda & Starfire 250 single Piston complete by G.P.M. (40-970)Condition: NOS
1967 - 1972
oversize 68.6 m
Made in Italy€ 138,00
BSA B25 C25 valves & guides set (68-0661 68-0662 40-931)condition: NOS
fits: 250 unit singles 1967-€ 67,00
BSA B25 Cylinder liner opn 70-9265Condition: New stock
Fits 250 Unit singles 1967-
Made in England€ 92,00
BSA B25 Kickstart Quadrant, Partno. 40-3267Condition: N.O.S.
Fits: 250 Unit singles with 5/8" spindle (c/w needle bearing)Made in England€ 128,00
BSA B25-B44 Kickstart Quadrant 57-4070Condition: N.O.S.
Fits: BSA Unit singles with 3/4" shaft
Made in England€ 96,00
BSA B25-B44 Rear brake plate anchor stay 41-6094Condition: N.O.S.
Fits Unit Singles 1967 with QD rear wheel
Made in England€ 19,00
BSA B25-B50 Clutch repair kit, Partno. 57-2726, 57-2725, 71-1418, 40-3231Condition: N.O.S.
Consists of: 5 driving plates + 5 driven plates + 4 springs + 1 cover gasket
Fits: Unit singles 1971-Made in England
(Sticker not included)€ 116,00
BSA B25-C25 / Triumph TR25W-T25SS Piston cplt std (Triumph no. 70-7998+71-1801 / BSA no. 40-970)Condition: N.O.S.
GPM Piston cplt
Fits all: Triumph unit singles 1967-1972 & 250 BSA unit singles 1967-1972
Compr. Ratio: 9.5:1
Made in Italy€ 138,00
BSA B25-C25 Triumph TR25W-T25SS Crankshaft, Partno. 40-1023Condition: Used, overhauled
Ground to .020" US c/w new bearings
Fits: 250 Singles 1967-1971€ 365,00
BSA B25SS / Triumph TR25W crankcase complete (70-8000)Condition: Used but very good
Bearings still fitted
1968-1972€ 245,00
BSA B25SS-B25T Crankcase DS (71-1869)Condition: Used
Fits: B25 Unit singles 1971-
Also fits: Triumph T25SS, T25T 1971- (castingnr: 71-1825)€ 138,00
BSA B31 - B33 Pushrod cover tube (65-1080)Condition: Used
M33 pre-unit singles
1949-1960
Lenght 238 mm€ 59,00
BSA B31-B32 Piston ring set (3660 Hepolite)Condition: N.O.S.
Fits: 348cc OHV Gold Star 1946-1957
Std dia: 71mm
Oversizes dia: 71.5mm and 72mm€ 37,00
BSA B31-B32 Set of 2 valves + guides (65-1111 / 65-1110)Condition: N.O.S.
Fits: 350 OHV pre-unit singles 1950-1960
Made in England€ 72,00
BSA B31-B33 A7-A10 Kickstart quadrant, Partno. 42-3160Condition: N.O.S.
Fits: Pre-unit gearboxes 1954-1963
Made in England€ 126,00
BSA B31, B33, M20, M21 Big end bearing complete (66-481 / 483) (65-1614)Condition: New stock
Fits all Pre-unit Singles 1937 - 1960 Execpt DBD34GS€ 212,00
BSA B33 M33 Set of 2 valves + guides (65-1239 / 65-1240)Condition: N.O.S.
Fits: 500 OHV Pre-unit singles 1946-1960
Made in England€ 84,00
BSA B33-B34 Piston ring setCondition: N.O.S.
Oversize piston ring set 85mm + 1mm
Fits: 1952-1957 Gold StarMade in England
(Sticker not included)€ 39,00
BSA B33-M33-B34 Piston oversizeCondition: N.O.S.
Fits: 500 OHV single 1952-
Dia: 86.5mm (.060" oversize)
Made in Italy by GPM€ 138,00
BSA B33-M33-B34 Piston oversizeCondition: N.O.S.
Fits: 500 OHV single 1952-
Dia: 86.5mm (.060" oversize)
Made in Italy by GPM€ 138,00
BSA B40 350 cc OVH Unit Single Conrod c/w bushes (41-233)Condition: NOS Casting nr. 41-234
Fits 1960 -
Size S.E. Bush dia 11/16" bottom end 45 mm bush
Made in England€ 138,00
BSA B40 - 350 Star Set of valves & guides (41-22/23/17)Condition: NOS
Fits 350 CC unit motors 1960 - 1963
Made in England by Alpha Bearings Ltd
(Sticker not included)€ 59,00
BSA B40 conrod c/w bushes opn. 41-233Condition: NOS
B40 - 350 Star - SS90 needle bearing type gudgeon pin bush = 3/4" inner dia
1960 - 1964 Casting nr, 41-234€ 138,00
BSA B40 Conrod c/w Bushes (41-233)Condition: N.O.S.
Conrod c/w bushes
Fits: 350 unit singles 1964-1967
Casting nr: 41-234 Gudgeon pin bush = 3/4" inner dia. Bottom bush is 45 mm inner dia.€ 138,00
BSA B40 Crank pin only, Partno. 40-0720Condition: N.O.S.
Fits: 350 Unit engines 1962-1965
Outerdia: 1.5" + 1"
Width: 2 7/32"Made in England by BSA€ 72,00
BSA B40 Crankshaft Assy, Partno. 41-0233 (41-0288, 41-0292, etc.)Condition: Used, good condition (no play on conrod)
Fits: 350 Unit singles 1962-€ 298,00
BSA B40 Piston assy cplt, std size, Partno. 41-0250Condition: N.O.S.
Fits: 350 Unit singles B40 1960-
Std size 79mm
Casting nr 41-251 BSA
Compr. ratio 8:1Made in England by BSA€ 158,00
BSA B40 Piston Std/Oversize .020"/.040"/.060" (41-0250/41-0252/41-0254/41-0254-1)Condition: New stock
Piston cplt for 350 unit singles 1960-1968
C.R. 8:1
Std size: 79mm (41-0250)
Oversize .020": 79.5mm (41-0252)
Oversize .040": 80mm (41-0254)
Oversize .060": 80.5mm (41-0254-1)€ 136,00
BSA B40-B25-B44 / Triumph TR25W Clutch centre & sundries, Partno. 41-3210 / 57-2724Condition: N.O.S.
Fits: All unit singles with 4 driving plates
Includes 4 rivets + 8 rubbersMade in England€ 72,00
BSA B40-B44 Clutch repair kit, Partno. 40-3233, 40-3220, 41-3091, 70-7856Condition: N.O.S.
Consists of: 4 driving plates + 5 driven plates + 4 heavy duty springs + 1 cover gasket
Fits: unit singles -1971Made in England
(Sticker not included)€ 98,00
BSA B44 Conrod c/w bushes (41-0549) (41-550)Condition: Used, but very good
Dia Gudgeon pin 3/4" bottom end 45 mm
Casting nr 41-550€ 138,00
BSA B44 Crankshaft assy, Partno. 41-546Condition: Used, needs new big end bearing
Fits: All 441cc engines 1965-1971€ 364,00
BSA B44 Piston oversize (41-0570) 82.5 mmCondition: N.O.S.
Large oversize piston : 82.5mm (3.5mm O.S)
Fits: 441CC Victor GP MX + Enduro 1965-
Alloy barrel only
Made in Italy by GPM€ 196,00
BSA B44 Victor Pair of valves & P.B. valve- guides Opn. 41-0024/0023/0632Condition: NOS
Fits 1965 - 66 round barrel type
Made in England€ 67,00
BSA B44 Victor - Enduro + MX 1965-1968 - Conrod Assy (41-0548)Condition: Used
Conrod & Crankpin assy. In good condition.
Casting NR: 41-0550
Fits: B44 Victor Enduro + MX 1965-1968€ 168,00
BSA B44 Victor .020" oversize Genuine BSA piston, Partno. 41-0572Condition: N.O.S.
Fits: All 440 singles 1965-1971
C.R. 9:1
Piston nr: 41/575Made in England€ 196,00
BSA B44 Victor Big end assembly, Partno. B26S, (41-0550), (TE10-11-12-13)Condition: N.O.S.
Fits: CCM TR350 Trials 1979-1980 + BSA Victor 440cc 1965-1968 (for Conrod nr. 41-550)Made in England by Alpha Bearings€ 292,00
BSA B44 Victor piston cpltcondition: NOS
made in Australia by JP Pistonsfits: 441cc singles + CCM 350 trails
1965-
C.R. 9.4:1€ 196,00
BSA B44-B50 Camshaft cplt (71-1680)Condition: Used
Fits: B44 Victor with 3/4" inner dia camshaft bushes B25-B50 models 1971-€ 169,00
BSA B44GP Connecting rod, Partno. 41-0549Condition: Used
Fits: 440cc unit singles B44G-B44VE-B44VR-B44VS 1965-1970€ 136,00
BSA B50 / Triumph TR50MX / CCM 500MX Clutch centre & sundries, Partno. 57-4511 (57-4186)Condition: N.O.S.
Fits: All unit singles with 5+5 clutch platesMade in England€ 72,00
BSA B50 Hepolite piston oversize opn 71-2148 Slipper type Hepolite nr 19267Condition: N.O.S.
Genuine hepolite piston cplt 0.50mm
Oversize 84.5mm
C.R: 10:1
Made in England€ 224,00
BSA B50 Oversize piston cplt (71-2150) Slipper typeCondition: N.O.S.
Fits: Victor 500MX B50T-B50SS + DBD34 Gold Star + CCM 500MX
Large oversize: 85.5mm (+.060")
Made in Italy by GPM€ 224,00
BSA B50-500MX Oil pump cplt (71-2228/71-3001)Condition: N.O.S. From dismantled new CCM 500MX engine
Fits: BSA B25-B50 Victor 1971- and CCM 500-600 1974-
Made in England€ 239,00
BSA B50-B25-TR25W Alloy Clutch chainwheel, 52T (57-4303-A)Condition: New stock
Fits: all BSA/Triumph unit singles 5 plate clutches 1963-
Made in England€ 136,00
BSA B50MX B50T B50SS Kickstart Quadrant + Needle bearing (57-3639)Condition: N.O.S.
Fits: 1972 B50 with stepped shaft
Made in England€ 132,00
BSA B50MX Cyl. head + base & rockerbox gaskets, Partno. 71-1625, 71-1624Condition: N.O.S.
Fits: All 500 unit single 1971- + CCM 500MXMade in England by BSA & Triumph€ 29,00
BSA B50MX Piston cplt oversized (84.5mm), Partno. 71-2749Condition: N.O.S.
Fits: BSA 500 Unit singles 1971 + CCM 500 2V 1973-
Made in England by AE Hepolite€ 224,00
BSA B50MX Valve & guide set, Partno. 71-1735+36, 71-1726+27Condition: N.O.S.
Fits: 500cc Unit singles 1971 + CCM 500MX 1973-1974Made in England for BSA€ 77,00
BSA Bantam D1 Oversize Heplex piston, Partno. Heplex 10339Condition: Slightly used
Fits: 125cc Two-stroke 1947-1963
Dia: 53.3mm€ 58,00
BSA Bantam Piston ring set M83 (R5560HEP)Condition: N.O.S.
2 Std piston rings 57mm x 3/32"
Fits: Bantam Major 150cc 1954-1958
Made in England by WellworthyLetterpost possible€ 19,00
BSA Bantam two stroke, piston ring set (90-1311) Hepolite R23080Condition: N.O.S.
Std rings for: 173cc: D10 - D14-4 - D175, 1967-1970
Dia: 61.529mm x 1/16"
Letterpost possible
Made in England€ 19,00
BSA C10 - C10L 250 SV Pair of inlet & exhaust valves (29-2120-2121)Condition: NOS Made in England by tranco Valves in Silicon Chrom
Fits : 1939 - 1957€ 49,00
BSA C10 / C10L 250 pair of inlet & exhaust valves (29-2120 / 2121)condition: NOS
pair of inlet & exhaust valvesfits: BSA C10, C10L 250 1939-1957€ 54,00
BSA C10 + C10 L side valve engine inlet + exhaust valves ( silicon chrome) + valve guidesCondition: NOS
1937 - 1957
Made in England by Tranco Valves Priced and sold per pair. Including valve guides (not shown in picture)€ 69,00
BSA C10-B33-A7 Steel clutch plate (set of 5) (29-2832)Condition: N.O.S.
Set of 5 plates
Fits: BSA singles & twins M20, M21, A7, A10 S.Arm, M33, B33, B34, C10, C11
Made in Italy by Surflex€ 74,00
BSA C10L-C12 Kickstart Level cplt (65-3381)Condition: N.O.S.
Fits: Light 4-speed gearbox of 250 SV + 250 OHV -1957
K.S. Spindle dia 3/4"
Made in England€ 79,00
BSA C11 - C11G - C12 Pair of valves 65-208 / 37Condition: NOS
Fits 250 Pre-Unit Singles 1939 - 1958
Made in England by Alpha Bearings€ 44,00
BSA C15 - C25 - B25 - B40 - B44 Clutch complete (4 plate type) 40-3235Condition: Used but good condition
- 1972
Made in England€ 184,00
BSA C15 Conrod AssyCondition: NOS
Fits C15 T + S 1959 - 1961
Casting nr 40 - 48
Big-end dia : 1 3/8" + 15/16"
Made in England€ 192,00
BSA C15 conrod c/w bushes (40-48)condition: NOS, Made in England
fits: 250 unit singles C15S + C15T 1959-1961€ 124,00
BSA C15 Crank pin (big end) Part No 40-0720Condition: N.O.S.
Fits: 250 Unit singles 1958-1966C15 C15S C15T
Outer dia: 15/16" + 1 3/8"
Width: 2 7/32"Made in England by BSA€ 72,00
BSA C15 Piston complete + .020" oversize 57.5 mm (40-0639) (40-447)Condition: NOS
Fits C15, C15 Star, C15 Sportsman, 250 Star + SS80 Sports Star
1959 - 1966
Casting nr 40-447
Made in England by BSA€ 132,00
BSA C15 Piston oversize, Partno. 40-447Condition: N.O.S.
Fits: 250 OHV Singles 1959-1966 C15 C15S SS80
Diameter: 67.5mm
C.R. 10:1Made in England by BSA
(Sticker not included)€ 138,00
BSA C15 set of valves & guides (opn 40-165 / 40-166 / 40-133)condition: NOS, made in England
fits: 250 OHV singles 1959 - 1966€ 64,00
BSA C15-B25-B50 / Triumph TR25W Clutch sprocket, Partno. 57-4198 (57-4303, 40-3203)Condition: N.O.S.
Fits all 250-350-440-500 BSA + Triumph singles 1958-1980 (will take 5+5 clutch plates)Made in England€ 132,00
BSA C15-B40 Gearbox sprocket (40-3052/40-3123)Condition: N.O.S.
Fits: 250-350 Unit singles 1958-1967
(For 428 chain)
Made in England€ 33,00
BSA C15SS80 STD Piston, Partno. 70-8767Condition: N.O.S.
Fits: 250 Singles 1958- (67mm)
nr. 17897AMade in England by Hepolite AE
(Sticker not included)€ 98,00- BSA C25-B25 / Triumph TR25W Clutch centre & sundries, Partno. 57-4186 (57-4511)
Condition: N.O.S.
Fits: All unit singles with 5-plate clutch 1971-Made in England€ 72,00 
BSA C25-B25-B40-B44 Oilpump cplt, Partno. 71-2227Condition: N.O.S.
Fits: Most unit singles BSA + Triumph TR25WMade in England€ 192,00
BSA clutch plate bonded set of 4 OPN 67-3242Condition: NOS
Fit: BSA
C10 - C11 1946 - 1953
B31 - B32 1946 - 1957
M20 - B34 1948 -
M33 - B33 1957 OPN 67-3242
A7 - A10 swing-arm type 1948 - 1957
Made in the USA Priced and sold per set€ 58,00
BSA DBD 34 Layshaft gear 17T, Partno. 42-3086Condition: N.O.S.
Fits: Pre-unit gearbox Clubmans ratio onlyMade in England€ 72,00
BSA DBD34 G.S. Kickstart shaft, Partno. 42-4163Condition: N.O.S.
Fits: 350-500 pre-unit Gold Star singles 1956-1960Made in England€ 136,00
BSA Gold Star Set of 2 valves & Ph. bronze guides (65-647/65-2512/65-645/65-646)Condition: N.O.S.
Fits: 500 OHV singles BB34/DBD34, 1951-1963
Made in England€ 82,00
BSA Gold Star Set of 2 valves P.h. bronze & guides (65-647/65-2512/65-645/65-646)Condition: N.O.S.
Fits: 500 OHV singles DBD34 - BB34 1951-1963
Valves Made in England by Alpha Bearings€ 82,00
BSA M20 - M21 Valve exhaust + valve guide 66-236-140Condition: NOS
Fits 500 - 600 SV Singles 1939 - 1958
Made in England€ 46,00
BSA M20 - M21 Valve guides inlet + exhaust Opn. 66-139-140Condition: NOS
Fits 500 - 600 SV Singles 1939 - 1958
ID 9 mm. OD 5/8" Lenght 87 mm
Made in England€ 38,00
BSA M20 - M21 Valve inlet + valve guide 66-235+140Condition: NOS
Fits 500 - 600 SV Singles 1939 - 1958
Made in England€ 46,00
BSA M20 Clutch friction plates (set of 4) (15-2419)Condition: N.O.S.
Fits: M20 + Empire Star singles -1947 with single spring clutch
Set of 4 plates
Made in Italy by Surflex€ 57,00
BSA M20-M21 Engine gasket set, Partno. 66-58, 66-93, etcCondition: N.O.S.
Fits: 500-600cc Side valve engines 1949-1961Made in England€ 39,00
BSA M20-M21 gasket set, Partno. 66-58 (66-0056, 66-0090)Condition: N.O.S.
Fits: 500-600 side valve engines 1939-1949Made in England by Payen gaskets€ 37,00
BSA M20-M21 Piston oversize (66-1025)Condition: N.O.S.
Fits: 500-600 SV (WD) 1937-1958
Dia: 82mm + 0.5mm o.s.
Casting nr. 66-1024
Made in England by BSA€ 138,00
BSA M20-M21-M33 Clutch centre, Partno. 15-4306Condition: N.O.S.
Fits: 500-600 Side-valve + 500 OHV 1949-1958 with one spring clutch (AA-model)Made in England by BSA€ 42,00
BSA Oilpump cplt C25- B25- B40- B44 Part. No: 71- 2227NOS
Fits most unit singles BSA + Triumph TR25W
Made in England€ 192,00
BSA Victor 441 set of valves & P.B. guides (41-788 / 789 / 632)condition: NOS
fits: 441 cc square barrel engines 1967-
made in England€ 69,00
BSA Victor B50 Slipper type Piston complete + .040" O.S. (85 mm) (71-2150)Condition: NOS
Fits B50 T, B50 SS, 500 MX 1971- DBD 34 Gold Star CCM 500 MX 1972-
Made in Italy by GPM€ 224,00
BSA Victor MX piston cplt + .020"(OPN 71-2749)condition: NOS
made in Australia by JP pistonsfits 500cc BSA singles + CCM 2V
1971-€ 198,00
BSA-CCM B25-B40-B44-B50 Camshaft pinion (70-8060)Condition: Used + lightened
Fits: most 250-350-440-500cc unit motors
Width: 10.3mm
60T, 242 grams€ 68,00
BSA-CCM B50MX Mainshaft + 1st Gear 18T (fixed) (57-4682)Condition: N.O.S.
Fits: 350-440-500 BSA-CCM Unit motors 1970-
Made in England€ 172,00
BSA/Triumph B50-T25 Kickstart shaft (57-4341)Condition: N.O.S.
Fits: 250-500 unit singles 1971-1974
(c/w needle bearing)
Made in England€ 116,00
CCM 500-600 4 speed gear-change Camplate (57-3850)Condition: N.O.S.
Fits: All BSA type gearboxes 1972-
Made in England€ 59,00
CCM Fourstroke 500 2-V Omega pistonCondition: N.O.S.
Omega piston oversize
Diameter: 86mm
Fits: CCM 500-560-600 cc 2V + BSA B50 DBD34
Made in England€ 256,0011 Teeth for 520 Chain (5/8 x 1/4)
CCM TR350/BSA B25/B50 Triumph TR25W Gearbox sprocket (57-4306/11)Condition: N.O.S.
Fits: All BSA-CCM-Triumph Unit singles 1958-1980
Made in England€ 39,00
CCM-BSA Big end bearing assy B28S (71-1616)Condition: N.O.S.
Big end bearing c/w needle bearing
Fits: BSA B50 MX -1973 & CCM MX500 1974-1981
Made in England by Alpha Bearings€ 268,00
CCM-BSA-Triumph TR25W Clutch locking tool (61-3774)Condition: N.O.S.
Special tool
Fits: All BSA-Triumph unit singles 1959-1973
Made in England€ 33,00
Triumph - BSA Rockerbox assy c/w rockers etc. 70-7911 (40-961)Condition: Used, nice condition
Fits 250 Unit Singles TR25W - B25 - C25 1967 - 1971
Made in England€ 168,00
Wipac ignition coil complete type LV6 MT8Condition: NOS
Complete with HT lead & clamp
6 volt
1958 - 1965€ 58,00
