| Rank | Board name and description | Posts | Members |
| 1 | Forum Auto Automotive discussion (in french) | 24412819 | 427603 |
| 2 | Motor-talk.de German automotive discussion forums | 16070980 | 765768 |
| 3 | Elaborare Italian car and bike tuning community | 11503056 | 57000 |
| 4 | Motor Forum Dutch motors discussion forums | 6160039 | 50545 |
| 5 | Thumper Talk Motocross message boards | 5821716 | 177141 |
| 6 | Adventure rider Adventurous motorcycling forums | 4980489 | 49236 |
| 7 | Visor down Motorbikes message boards | 4846421 | 46826 |
| 8 | Cycling Forums Cycling and bike racing message board | 4636812 | 133179 |
| 9 | Cycle forums Sportsbikes and motorcycling message boards | 3968339 | 65855 |
| 10 | The Sportbike Network Motorbike racing and performance forum | 3515883 | 86354 |
| 11 | Harley Davidson Forum Harley Davidson owners forums | 3362440 | 61140 |
| 12 | Sporthoj Swedish sportbikes forum | 3353426 | 37539 |
| 13 | R1 Forum Yamaha R1 motorbikes message boards | 3315000 | 84245 |
| 14 | BARF Bay Area Riders Forum | 3274696 | 22566 |
| 15 | Stunt Life Stunters and motorcycling forum | 3123622 | 67252 |
| 16 | Singapore Bikes Singapore Bikes Forum | 2945448 | 36368 |
| 17 | Exriders Honda motorbikes discussion forums | 2922364 | 75401 |
| 18 | Gixxer Suzuki GSX-R enthousiasts message boards | 2894614 | 97640 |
| 19 | KTM Talk KTM motorcycles forums | 2256291 | 81195 |
| 20 | Ten Tenths Motorsports message board | 2179827 | 26678 |
| 21 | R6 MessageNet Yamaha R6 owners community | 1860597 | 30205 |
| 22 | Daidegas Forum Motorcycles forum (in italian) | 1829185 | 13076 |
| 23 | Labusas Suzuki motorcycles message boards | 1645056 | 10692 |
| 24 | 600RR Honda 600RR enthusiasts community | 1591581 | 28412 |
| 25 | Performance forums Cars and motorbikes performance forums | 1561317 | 21051 |
| 26 | MoppeNet Scooter and Moped forums | 1551761 | 9582 |
| 27 | Aprilia Aprilia motorcycle and scooter discussion board | 1545590 | 33112 |
| 28 | Sportbikes.ws Sportbikes discussion board | 1322568 | 34087 |
| 29 | Auto Roule French automotive forums | 1275677 | 5022 |
| 30 | V-Twin Forum Harley Davidson forum | 1260979 | 60711 |
| 31 | KawiForums.com Kawasaki ATV Forums | 1212119 | 34338 |
| 32 | UKGS'er BMW GS motorcycle community | 1173907 | 7347 |
| 33 | Pacific Northwest Riders Motorcycle rides forum | 1134448 | 8661 |
| 34 | Dirt Rider Motorcycle racing message boards | 1079684 | 73880 |
| 35 | eSportbike Sportbikes message board | 1015836 | 52291 |
| 36 | 1000rr Honda CBR 1000RR motorcycle forum | 1009280 | 9772 |
| 37 | Forums Hawaii Hawaiian automotive community | 966543 | 28676 |
| 38 | Blue traxx Yamaha ATV Forum | 897041 | 23749 |
| 39 | TLZone Suzuki TLR / TLS motorcycles forum | 803935 | 12881 |
| 40 | Sportbikes.com Motorcycles message board | 702654 | 45103 |
| 41 | R6 Forum Yamaha R6 forum | 701487 | 34502 |
| 42 | GSXR Suzuki GSX-R forums | 621243 | 30409 |
| 43 | Sportbikeworld Sportbike message boards | 457757 | 54382 |
| 44 | Ducati.ms Ducati message board | 375817 | 14646 |
| 45 | ZX Forums Kawasaki motorcycles discussion board | 64995 | 11622 |
| 46 | Sport Touring Sportbikes riders forums | 18050 | 1896 |
| 47 | Motorsport Forums - discontinued Car racing and rallying discussion board | 8459 | 19829 |