BIKERELIABILITY Reg check
League table/ Rankings/Bikes most likely to fail on brakes
Common failures · 2005–2025

Bikes most likely to fail on brakes

Which motorcycles fail their MOT on brakes most often?

STR 125 YB
tops the list, LEXMOTO
24.6%
brake failure rate

Full ranking

50 models · min 200 tests · Brake failure rate
# Bike Brake failure rate Brake failure rate % Pass % Tests
1 LEXMOTO STR 125 YB
24.6 48.5 260
2 VULCAN HARRIER
23.0 49.2 305
3 RIEJU RS1
21.9 44.9 374
4 AJS R7
20.8 44.8 212
5 XINLING XL 50 QTB
20.5 52.5 263
6 WANGYE WY 50 QT-16A
20.5 53.9 258
7 SKYJET SJ
19.8 50.3 374
8 AJS TN
19.7 52.5 244
9 CPI SX 50
19.7 47.2 229
10 MASH BLACK 7
19.5 65.1 241
11 MOTOR HISPANIA MH6V-X FURIA
19.2 48.9 474
12 LEXMOTO XTR 125-23
19.0 54.3 1,883
13 APRILIA TUONO 50
18.9 53.0 302
14 LEXMOTO GLADIATOR 125
18.8 54.9 2,330
15 MOTOR HISPANIA MH6U-SM
18.8 48.8 389
16 GENERIC TRIGGER
18.8 50.0 308
17 PEUGEOT XR6
18.7 46.6 524
18 Z Y MOTOR ZY 50 QT-7
18.6 59.6 527
19 HYOSUNG SF50
18.3 56.3 240
20 DERBI SENDA (RESTRICTED)
18.2 46.7 516
21 SKYJET SJ 125-23
18.0 44.7 2,324
22 SANBEN WY 125 T-23
17.9 57.3 368
23 BAIMO RENEGADE
17.9 54.6 240
24 MOTOR HISPANIA RYZ 50
17.9 47.8 201
25 ZONTES SCORPION 125
17.8 57.8 540
26 BULLIT HUNT S 125
17.8 61.5 275
27 RIEJU MRX125
17.6 52.4 210
28 HYOSUNG HYPER
17.5 61.1 303
29 SACHS SPEEDFORCE
17.5 57.7 246
30 MOTOR HISPANIA RX50
17.3 51.0 716
31 SUPERBYKE POWERBAND 50
17.3 54.5 255
32 APRILIA RX50
17.1 50.3 3,525
33 PEUGEOT XP6S
17.1 50.6 891
34 BAOTIAN BT 125 T-7
17.0 56.3 206
35 MOTOR HISPANIA FURIA 50
16.9 46.6 491
36 TAISHAN COMMUTER
16.9 56.9 325
37 PEUGEOT XPS CT 125
16.9 55.9 254
38 KAISAR KS 125-23
16.8 46.7 655
39 MBK NITRO (Y050)
16.8 53.9 536
40 AJS FLIGHT
16.7 58.2 311
41 ZNEN ZN 125 T-32A PHANTOM
16.7 54.6 306
42 PEUGEOT XR6 S
16.7 45.7 282
43 APRILIA RX 50 MY06
16.6 52.9 344
44 PEUGEOT SPEEDFIGHT 50 LR ULTIMATE
16.6 52.9 223
45 SUPERBYKE RMR 125
16.5 53.0 1,633
46 HIMO GY 125
16.5 47.6 309
47 APRILIA RS 50
16.4 52.4 13,697
48 YIBEN MEIDUC YB 50 QT-9
16.4 52.2 232
49 RIEJU RR 50
16.3 48.5 600
50 PEUGEOT XP6 T
16.3 47.3 319

Normal tests only, first-time outcomes. Pass rate is the MOT first-time pass, a roadworthiness check rather than a full mechanical-reliability rating. Source: DVSA anonymised MOT results. Small samples are noisier, so weight the test count. Methodology.

Related rankings

Common failures Bikes most likely to fail on lights Models ranked by the share of tests failing on lighting, signalling, lamps or reflectors. Common failures Bikes most likely to fail on steering & suspension Models ranked by the share of tests with a steering or suspension defect. Common failures Bikes most likely to fail on tyres & wheels Models ranked by the share of tests with a tyre or wheel defect. Common failures Bikes most likely to fail on the drive system Models ranked by the share of tests with a drive-system defect. Common failures Bikes most likely to fail on fuel & exhaust Models ranked by the share of tests with a fuel or exhaust defect. Common failures Bikes most likely to fail on structure & corrosion Models ranked by the share of tests with a structure, body or attachment defect.