BIKERELIABILITY
MOT DATA · GREAT BRITAIN · 2005–2025
League table/ Rankings/Bikes most likely to fail on fuel & exhaust
Common failures · 2005–2025

Bikes most likely to fail on fuel & exhaust

Which motorcycles fail their MOT on fuel or exhaust most often?

NITRO (Y050)
tops the list, MBK
8.0%
fuel/exhaust failure rate

Full ranking

50 models · min 200 tests · Fuel/exhaust failure rate
# Bike Fuel/exhaust failure rate Fuel/exhaust failure rate % Pass % Tests
1 MBK NITRO (Y050)
8.0 53.9 536
2 RIEJU SMX50
7.8 48.1 293
3 BAOTIAN BT 125 T-7
7.8 56.3 206
4 MOTOR HISPANIA FURIA 50
7.3 46.6 491
5 PEUGEOT XP6 T
7.2 47.3 319
6 WANGYE WY 50 QT-16A
6.6 53.9 258
7 MOTOR HISPANIA MH6U-SM
6.2 48.8 389
8 APRILIA AF1 125
6.2 57.7 307
9 APRILIA RALLY 50
6.1 68.5 1,809
10 KAISAR KS 125-23
6.1 46.7 655
11 HIMO GY 125
6.1 47.6 309
12 RIEJU RR 50
6.0 48.5 600
13 JINLUN JL 125 T-13
6.0 54.8 252
14 RIEJU RS1
5.9 44.9 374
15 HONDA NS125R-K
5.9 53.0 304
16 MBK YN50 OVETTO
5.8 65.4 587
17 PIAGGIO ZI
5.8 64.6 277
18 LONGJIA LJ 50 QT-F
5.8 59.1 257
19 PEUGEOT XR6
5.7 46.6 524
20 MOTOR HISPANIA MH6V-X FURIA
5.7 48.9 474
21 AJS CR3-125
5.7 43.9 262
22 DERBI SENDA (RESTRICTED)
5.6 46.7 516
23 LIFAN LF 125-14F
5.5 51.8 985
24 PIONEER XF 125 L-4B TORRO
5.5 57.7 766
25 HYOSUNG SD50
5.5 69.6 293
26 MALAGUTI F-15 FIREFOX
5.4 64.3 423
27 POR APACHE 125
5.3 49.0 545
28 PEUGEOT XP6S
5.2 50.6 891
29 GILERA GSM
5.2 53.7 793
30 SUZUKI TS50
5.1 59.3 4,727
31 APRILIA RX50
5.1 50.3 3,525
32 APRILIA SCARABEO 100
5.1 72.8 312
33 APRILIA SONIC
5.0 65.6 2,287
34 SHINERAY XY 125 GY
5.0 47.7 778
35 MOTO ROMA MRX 125
5.0 53.2 600
36 BAIMO RENEGADE
5.0 54.6 240
37 SUPERBYKE RMX 125
5.0 46.3 218
38 DAELIM VEE 125
4.8 63.1 647
39 GILERA DNA 50
4.7 61.6 1,502
40 VULCAN CUSTOM
4.7 56.1 930
41 APRILIA RS 50 MY06
4.7 58.9 358
42 BAOTIAN BT 49 QT-9F
4.7 66.6 341
43 KAWASAKI KMX
4.7 63.6 338
44 SKYTEAM ST 50-3 SM
4.7 52.1 236
45 APRILIA RS 50
4.6 52.4 13,697
46 MBK MACH G
4.6 65.3 2,103
47 APRILIA RALLY
4.6 71.4 413
48 ZNEN ZN 125 T-32A PHANTOM
4.6 54.6 306
49 XINLING XL 50 QTB
4.6 52.5 263
50 BAOTIAN BT 49 QT-12
4.6 56.5 239

Normal tests only, first-time outcomes. Source: DVSA anonymised MOT results. Small samples are noisier, so weight the test count. Methodology.

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