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Triumph Pistons+060 Pre Unit
T100 and 5T
Compr. ratio: 9:1

64.5mm

Piston Clearance 0.12mm or 45thou

Triumph.
T100R, T100T unit
9:1,
69mm +040 = +1mm, 70 mm
Tiger 100 Unit
Daytona
500cc
Piston Clearance 0.12mm or 45thoucomplete with Piston Rings, Circlips and Gudgeon Pin

to be fitted after 1967price per pair

69 mm bore, +040 = 70 mm
price per Pair
7:1
Triumph, 5Ta
500cc Unit
500 Unit low comp
with Piston rings, circlips and gudgeon pin

Piston Clearance 0.12mm or 45thou

BSA A7 Piston Ring Set / Piston Rings +060 1950-62
500cc

BSA A65 Piston Ring Set / Piston Rings +020
650ccCompression Ring  thickness 1/16"       Deep 1/8Oil Ring thickness 1/8"     Deep 1/8"
 

Norton Twin 500 cc
Piston Ring Set / Piston Rings +060
GPM
67.5 mm
Dominator 7,77,88 comp rings. Thick. 0.062" = 1.59mm = 1/16". Comp Ring. Deep. 0.111" = 2.83mm. Oil Ring. Thick. 0.157" = 3.98" = 5/32. Oil Ring. Deep. 0.110" = 2.81mm.

Norton ES2 Piston Ring Set / Piston Rings STD.
79 mm
GPM
Compression Rings thickness: 1.5 mmOil Ring thickness: 4 mm

Norton ES2 Piston Ring Set / Piston Rings +040 Gandini
80 mmCompression Rings thickness: 1.5 mmOil Ring thickness: 4 mm

Norton ES2 Piston Ring Set / Piston Rings +060 GPM
80.5 mm
Compression Rings thickness: 1.5 mmOil Ring thickness: 4 mm

Norton Commando  750cc
Piston Ring Set / Piston Rings +020
Gandini
(73.5mm +0.20")

Norton Commando 750cc
Piston Ring Set / Piston Rings +040GPM or Gandini. Italian

9:1 Compr. Ratio
Top Quality
Price per Pair
T100
500cc
63.5 mm
Triumph
Piston Clearance 0.12mm or 45thoucomplete with Piston Rings, Circlips and Gudgeon Pin

9:1 Compr. Ratio
Top Quality
Price per Pair
Pre Unit T100
500cc
64 mm
Piston Clearance 0.12mm or 45thou.
BSA A7 1947-50 +80complete with Piston Rings, Circlips and Gudgeon Pin

1946-1953
Hep 11341+40
+040 = 86 mm
65-1262 Compr. ration 6.8:1

to be used with flywheels
65-1235 und 65-1235
to be used with conrod 66-482
Piston Clearence 0.12mm or 45thou
Gudgeon Pin: 19mm
Compression Height: 31.1mm
for long conrod B33 M33 B34 Gold Star distance between 2 ends of piston ring must be 0,5 mm
 

Price per Pair
complete with Piston Rings, Gudgeon Pin and Circlips
8.25:1
70 mm
Italian made-Gandini

for Iron and Alloy Head from 1950-62
Piston Clearence 0.12mm or 45thou

cpl. with Piston Rings, Circlips and Gudgeon Pin
Price per Pair
Made in Italy
Compr. ratio 8.25:1
+020=70.5mm
Gandini

for Iron and Alloy Head from 1950-62
Piston Clearence 0.12mm or 45thou

BSA B40, 8:1 Compr.
+40 = 80mm
Piston Clearance 0.12mm or 45thou
Gudgeon pin 19mm with Piston Rings, Gudgeon Pin and Circlips

BSA A10 Pistons Standard Size
incl. Rings, Gudgeon Pins, Circlips
7.25:1
Piston Clearence 0.12mm or 45thou
STD= 70mm price per pair Please look at ALL pictures

Compr. ratio 8.25:1
complete
Price per Pair
+080= 72 mm
Gandini
for Iron and Alloy Head 1950-62 including gudgeon Pin, piston rings and circlips Piston Clearance 0.12mm or 45thou

Triumph Piston Ring Set / Piston Rings +060
T100R 1974

Triumph T140V 750 cc Piston Ring Set / Piston Rings +040

Triumph 750 cc Piston Ring Set / Piston Rings +060
 

High CompressionTriumph.
T100R, T100T unit
9:1,
69mm +20 = 69.5 mm
Tiger 100 Unit
Daytona
500cc
Piston Clearance 0.12mm or 45thou
complete with Piston Rings, Circlips and Gudgeon Pin
to be fitted after 1967Price per pair

9:1 Compr., Top Qualit.
price per pair
Pre Unit
63mm
Piston Clearance 0.12mm or 45thoucomplete with piston rings, circlips and gudgeon pin

Compr. ratio 7:1, new,
std. = 71 mm
price per pr
Cast Iron Head - please do not fit to alloy head
Pre Unit
6T
71mm
Thunderbird.
650cc

Piston Clearance 0.12mm or 45thouwith Piston Rings, Circlips and Gudgeon pinmeasurements see techn. data