Original Fitment Tyres are list in the genuine parts catalogue for each model. Alternative tyres are listed here.

What do the letters and numbers on a tire mean?

The most important label is the sizing designation, which for example could read "120/70ZR17." This label indicates section width (120mm), aspect ratio (70 percent), speed rating (Z), construction (R), and wheel diameter (17 inches). This tire has a speed rating of "Z" or more than 149mph, and is a radial (R) construction.

In Short: 'Section Width (mm)' / 'aspect Ration (%)'- 'Wheel Diameter (Inches)' 'Load Rating' 'Speed Rating'

Speed Rating	Max MPH	XXXXXX	Load Rating	Max kg
N	87		51	195
P	93		52	200
Q	99		54	212
R	106		55	218
S	112		56	224
T	118		60	250
H	130		62	265
V	149		64	280
W	168		66	300
Y	186		68	315

Model	Front Wheel	Front Tyre	-	Bar	Rear Wheel	Rear Tyre	-	Bar Solo-2 up
B 125 (Beverly 125)	3.00x16	110/70-16, 52P	T/L	2.0	3.50x16	140/70-16, 65P	T/L	2.2-2.5
B 500 (Beverly 500)	3.00x16	110/70-16, 52S	T/L	2.2	4.50x14	150/70-14, 66S	T/L	2.5
Diesis 100 (also Diesis 50)	3.00x12	120/70-12, 56J	T/L	1.7	3.00x12	120/70-12, 56J	T/L	1.9-2.1
Fly 50	3.50x12	120/70-12, 58P	T/L	1.8	3.50x12	120/70-12, 58P	T/L	2.0-2.3
Fly 125/Fly 100	3.50x12	120/70-12, 58P/60L	T/L	1.8	3.50x12	120/70-12, 58P/60L	T/L	2.0-2.3
Free 50	1.85x14	80/80-14, 43J	T/L	2.0	1.85x14	80/80-14, 43J	T/L	2.5-3.0
Hexagon 125	2.50x10	100/80-10, 58J	T/L	1.8	3.00x10	130/70-10, 62J	T/L	2.3-2.5
Hexagon GT 250, GTX 250	3.00x11	120/70-11, 50L	T/L	1.8	3.00x11	130/70-11, 60L	T/L	2.2-2.5
Hexagon GTX 125 (11 inch wheels)	3.00x11	120/70-11, 50L	T/L	1.8	3.50x11	130/70-11, 60L	T/L	2.0-2.5
Hexagon GTX 125 (12 inch wheels)	3.50x12	120/70-12, 51L	T/L	1.8	3.50x12	140/60-12, 62L	T/L	2.0-2.5
Hexagon LX/LXT	3.00x11	120/70-11, 50L	T/L	1.8	3.50x11	130/70-11, 60L	T/L	2.0-2.5
Liberty 125	1.60x16	80/80-16, 46J	T/L	1.8	2.50x14	110/80-14, 56J	T/L	2.0-2.2
Liberty 125 RST	2.15x16	90/80-16, 51J	T/L	2.0	2.75x14	110/80-14, 59J	T/L	2.5
Liberty 50	1.60x16	70/90 -16, 42J 80/80 -16, 46J (‘98)	T/L	1.8	2.15x11	90/80 -16   52J '	T/L	2.0
Liberty 50 four stroke	2.15x16	90/80-16, 51J	T/L	2.0	2.75x14	110/80-14, 59J	T/L	2.2-2.5
MP 3 125/250 (3 wheel)	3.00x12	120/70-12, 51P (qty 2)	T/L	1.6-1.8	3.00x12	130/70-12, 62P	T/L	2.0-2.4
NRG/NRG Mc2	3.50x13	130/60-13, 53J	T/L	1.3	3.50x13	130/60-13, 53J	T/L	1.8-20
NRG Extreme air/water cooled	3.50x13	130/60-13, 53J	T/L	1.3	3.50x13	130/60-13, 53J	T/L	1.8-20
NRG Mc3 air/water cooled	3.50x13	130/60-13, 53J	T/L	1.3	3.50x13	130/60-13, 53J	T/L	1.8-20
NRG Power liquid & air cooled	3.00x13	120/70-13, 57L	T/L	1.2	3.50x13	140/60-13, 57L	T/L	1.9
Quartz 50	2.50x10	100/80-10, 52J	T	1.2	2.50x10	100/80-10, 52J	T	1.7-2.5
Sfera 125 four stroke	2.50x10	100/80-10, 52J	T/L	1.5	2.50x10	130/70-10, 62J	T/L	1.8-2.3
Sfera 50/80	2.15x10	90/90-10, 50J	T/L		2.15x10	90/90-10, 52J	T/L
Sfera RST 50/80	2.50x10	100/80-10, 52J/53J	T/L	1.5	2.50x10	110/80-10, 58J	T/L	1.8-2.3
Skipper 125	2.50x10	100/80-10, 52J	T	1.3	2.50x10	110/80-10, 58J	T	1.8-2.3
Skipper LX 125	3.50x12	120/70-12, 51J	T/L	1.4	3.50x12	130/70-12, 56L	T/L	1.6-1.8
Skipper ST 125 four stroke	3.50x12	120/70-12, 51L	T/L	1.4	3.50x12	130/70-12, 56L	T/L	1.6-1.8
Typhoon 125	3.50x10	120/90-10, 56J	T/L	1.3	3.50x10	120/90-10, 56J	T/L	1.8-2.5
Typhoon 50/Typhoon 50 RST	3.50x10	120/90-10, 56J	T/L	1.3	3.50x10	120/90-10, 56J	T/L	1.8-2.5
Typhoon 80	3.50x10	120/90-10, 56J	T/L	1.3	3.50x10	120/90-10, 56J	T/L	1.8-2.5
Velofax 50	1.60x17	70/90-17, 43M	T/L	2.0	1.85x16	80/90-16, 46M	T/L	2.5-3.0
X8 125/X8 250	3.50x14	120/70-14, 55P	T/L	2.3	3.00x12	130/70-12, 62P	T/L	2.6
X8 400	3.50x14	120/70-14, 55Q	T/L	2.1	4.50x14	140/70-14, 68Q	T/L	2.3-2.5
X9 125	3.50x14	120/70-14, 55 P	T/L	2.1	3.50x14	140/60 – 14, 64 P	T/L	2.3 – 2.5
X9 250 (Honda engine)	3.50x14	120/70-14, 55 P	T/L	2.0	3.50x13	140/60-13, 63P	T/L	2.2-2.5
X9 250 Evolution (Piaggio engine)	3.50x14	120/70-14, 55 P	T/L	2.1	3.50x14	140/60 – 14, 64 P	T/L	2.3-2.5
X9 500 and X9 500 Evolution	3.50x14	120/70 – 14, 55 S	T/L	2.2	3.50x14	140/70 – 14, 68 S	T/L	2.3 – 2.6
Zip 50 Cat 2 stroke & 4 stroke	2.50x10	100/80-10, 53L	T/L	1.3	3.00x10	120/70-10, 54L	T/L	1.8-2.0
Zip 50 two stroke	2.15x10	90/90-10, 50J	T/L	1.2	2.15x10	90/90-10, 50J	T/L	1.7-2.5
Zip RST 50 two stroke	2.50x10	100/80-10, 52J	T/L	1.4	2.50x10	100/80-10, 52J	T/L	1.8
Zip SP 50 two stroke	2.50x10	100/80-10, 52J	T/L	1.4	2.50x10	110/80-10, 52J	T/L	1.8
Zip 100 four stroke	2.50x10	100/80-10, 53L	T/L	1.3	3.00x10	120/70-10, 54L	T/L	1.8-2.0
Zip 125 four stroke	2.50x10	100/80-10, 53L	T/L	1.6	3.00x10	120/70-10, 54L	T/L	2.0