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IJD Motorsport has a passion for motorcycle racing. Because of this we not only support marshaling, but also support club racing as well, with fully qualified and experienced A.C.U. licenced Race Officials.
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IJD MOTORSPORT
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OFFICALS
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SPEED RATINGS

LETTER______________ MPH______________ KM/H
B ____________________ 31 _________________50
F _____________________50 _________________80
J _____________________62_________________100
L _____________________74_________________120
M_____________________81_________________130
P_____________________ 93 ________________150
Q_____________________100________________160
R_____________________106________________170
S_____________________112________________180
T_____________________118________________190
H_____________________130________________210
V_______UP TO________ 149____ UP TO______240
(V)______OVER_________149_____OVER_______240
W _____ UP TO_________168_____UP TO______270
(W)_____OVER__________168_____OVER______270
Z_______OVER_________149_____ OVER______240
MH90 ---------- 80/90
MJ90 ---------- 90/90
MM90----------- 100/90
MN90 --------- 110/90
MR90 --------- 120/90
MT90 --------- 130/90
MU85--------- 140/80
MU90--------- 140/90
MV85 --------- 150/80
MV90 --------- 150/90
LI ---------- KG
0 ------------45
1------------ 46.2
2------------ 47.5
3-------------48.7
4------------ 50
5-------------51.5
6-------------53
7 ------------54.5
8-------------56
9-------------58
10-----------60
11-----------61.5
12-----------63
13-----------65
14-----------67
15-----------69
16-----------71
17-----------73
18-----------75
19-----------77.5
20-----------80
21-----------82.5
22-----------85
23-----------87.5
24-----------90
25-----------92.5
26-----------95
27-----------97.5
28---------100
29---------103
30---------106
31---------109
32---------112
33---------115
34---------118
35---------121
36---------125
37---------128
38---------132
39---------136
40---------140
41---------145
42---------150
43---------155
44---------160
45---------165
46---------170
47---------175
48---------180
49---------185
50---------190
51---------195
52---------200
53---------206
54---------212
55---------218
56---------224
57---------230
58---------236
59---------243
60---------250
61---------257
62---------265
63---------272
64---------280
65---------290
66---------300
67---------307
68---------315
69---------325
70---------335
71---------345
72---------355
73---------365
74---------375
75---------387
76---------400
77---------412
78---------425
79---------437
80---------450
81---------462
82---------475
83---------487
84---------500
85---------515
86---------530
87---------545
88---------560
89---------580
90---------600
91---------615
92---------630
93---------650
94---------670
95---------690
96---------710
97---------730
98---------750
99---------775
LEGALLY PERMITTED PAIRINGS

BIAS-PLY (CROSS-PY) FRONT----------------------BIAS-PLY (CROSS-PLY) REAR

BIAS-BELTED FRONT------------------------------------BIAS-BELTED REAR

RADIAL FRONT----------------------------------------------RADIAL REAR

BIAS-PLY (CROSS-PLY) FRONT--------------------BIAS-BELTED REAR

BIAS-PLY (CROSS-PLY) FRONT--------------------RADIAL REAR

BIAS-BELTED FRONT------------------------------------RADIAL REAR



ILLEGAL PAIRINGS

BIAS-BELTED FRONT------------------------------------BIAS-PLY (CROSS-PLY) REAR

RADIAL FRONT----------------------------------------------BIAS-PLY (CROSS-PLY) REAR

RADIAL FRONT----------------------------------------------BIAS-BELTED REAR.
TSUBAKI 525APX-108 ALPHA
TSUBAKI 525APX-108 ALPHA
£70.51
£70.51 (inc vat)
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STORM-ST AV56 180/55 ZR17 (73W)
STORM-ST AV56 180/55 ZR17 (73W)
£104.99
£104.99 (inc vat)
find out more

ML 50 120/70-12 44L UNI
ML 50 120/70-12 44L UNI
£31.44
£31.44 (inc vat)
find out more

COBRA AV72 250/40 R18 (81V)
COBRA AV72   250/40 R18 (81V)
£175.99
£175.99 (inc vat)
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DIABLO ROSSO 160/60 ZR17 M/C (69W)
DIABLO ROSSO 160/60 ZR17 M/C (69W)
£117.99
£117.99 (inc vat)
find out more


IJD Motorsport
Tel: 0113 2600066
Fax: 0113 2600077
Mob: 0771 2766482


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