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Piston Ring Set / Piston Rings BSA 175ccm D10/D14 +020
STD= 60mm +20= 60.5mm

Piston Ring Set / Piston Rings BSA 175cc D10/D14 +060
STD= 60mm +60= 61.5mm 1,6 mm thick 2,5 mm wide

BSA B31 Piston Ring Set / Piston Rings 350ccm STD
now English rings
Compression ring 3/32" 2.4mm thick
deep 2.7mm

oil ring 1/8" thick deep 2.7mm

Triumph 5TA, T100 Piston Ring Set / Piston Rings 1957-73
+020

Royal Enfield 350cc Piston +40 71mm
complete with piston rings, gudgeon pin and circlips

fits most years

Piston BSA C15 +020
with Gudgeon Pin and 2 Circlips
Piston Clearance 0.12mm or 45thou
Compression: 7.5:1

Piston 62.3mm
67-198

with Piston Rings and Circlips
no Gudgeon Pin
new, old stock  Please view all pictures

BSA A7 Piston 500cc 1947/50 62.4mm +20 used
Nos.
with rusty gudgeon pin
no piston rings

for restoration - no warranty

Triumph 5T 500cc Pre Unit Piston Rings / Piston Ring Set CP40/060
64.5mm

Piston Ring Set / Piston Rings BSA D3 STD.
150cc
STD= 57mm

Piston Ring Set / Piston Rings BSA D10/D14 +040
175cc

Heplex Piston Triumph Type C +040
63mm +040

with gudgeon pin, piston rings and circlips

Heplex Piston Triumph Type C +040
64 mm

with Gudgeon Pin and Piston Rings

Heplex Piston Triumph Type C +030
63mm +030

with Gudgeon Pin and Piston Rings

Heplex Piston Ariel Type C +060 Reg N° 537556
STD=61mm +060

OHV
Model: Red Hunter, LG, LH, De luxe, OG, OH
C.R: 6 to 1

62,5mm
Compression High: 37mm
Gudgeon Pin DM: 20,5mm

with Gudgeon Pin and Piston Rings
new ,old stock

Heplex Piston Triumph +040

OHV
Model: De Luxe 3T, Twin
C.R: 6.3 to 1
STD = 55mm

with rusty piston rings and gudgeon pin

Heplex Piston Triumph Type C +040
63mm +040

with gudgeon pin, piston rings and circlips

Heplex Piston Triumph
STD= 63mm

with Gudgeon Pin and Piston Rings

AJS 347cc OHV Piston Covmo +020
69mm (2 23/32") +020

with gudgeon pin
no piston rings
new, old stock

Hepolite Piston Ring Set / Piston Rings Villiers Type STD. 1957 259cc

50.051mm/1.9705" STD

4 Pieces

Hepolite Piston Ring Set / Piston Rings M.Becane 49.9cc Two Stroke STD.
39mm/1.5354" STD

Hepolite Piston Ring Set / Piston Rings R.C.15
3 1/2 x 1 x 1/2

Hepolite Piston Ring Set / Piston Rings 1949-57 STD
59mm/2.3228" STD P6666
59mm STD x 3/32"

BSA Piston used 75.4mm

without Piston Rings, Gudgeon Pin, Circlips

for restoration - no warranty

BSA Piston used 75.00mm

with gudgeon pin and piston rings

vor restoration - no warranty