Routes
- Mike's - mtb crosscountry, 1.9 km, ascent 43 m, descent 76 m
- Miki Trail - mtb, network lcn, 0.1 km, ascent 0 m, descent 5 m
- MIL1 - mtb Trail-Tour, operator Geo-Naturpark Bergstraße-Odenwald, 25 km, ascent 818 m, descent 799 m
- Milča - mtb, network lcn, operator Kokořínské stezky z.s., 3.1 km, ascent 35 m, descent 101 m
- Mildcat - mtb, network lcn, operator Noquemanon Trail Network
- Milderer Berg - mtb crosscountry, operator Tirol
- Milders - Oberissalm - mtb crosscountry, operator Tirol, 9.4 km, ascent 729 m, descent 9 m
- Milevi skali - Dolene - mtb, network lcn, operator www.alabak.info, 6.1 km, ascent 1003 m, descent 56 m
- Milevi skali - Salihov grob - Sinora - Dolene - mtb, network lcn, operator www.alabak.info
- Milevi skali - Varvara - mtb, network Alabak, operator Alabak
- Milford Connector - mtb, 3 km, ascent 38 m, descent 51 m
- Milky Way - mtb downhill, 5 km, ascent 12 m, descent 345 m
- Mill Creek Trail - mtb, 4.5 km, ascent 104 m, descent 185 m
- Millenium Strecke - mtb, 19.6 km, ascent 551 m, descent 551 m
- Millenniumroute - mtb, network lcn
- Miller Gulch 730 - mtb crosscountry, 6.6 km, ascent 3 m, descent 233 m
- Millstätter Alm Tour | nock/bike Tour 49 - mtb, network lcn, operator Millstätter See Tourismus, 49.3 km, ascent 1724 m, descent 1727 m
- Millstättersee-Runde - mtb, network lcn
- Milner Trail - mtb
- Milochov - mtb, 1.1 km, ascent 203 m, descent 0 m
- Mimix tour - mtb, network lcn, operator Les Vallons du Lyonnais, 46.3 km, ascent 740 m, descent 718 m
- Mimosa - mtb crosscountry, network lcn, 2.9 km, ascent 59 m, descent 59 m
- Mina de Mica - mtb, 9.1 km, ascent 184 m, descent 12 m
- Mina Margalida - mtb, network rcn, operator Centre BTT la Val d'Aran
- Mina Victoria - mtb, operator Centre BTT la Val d'Aran, 23.8 km, ascent 2058 m, descent 2053 m
- Mine Flow - mtb, 0.3 km, ascent 0 m, descent 25 m
- Mineralen - mtb crosscountry, 3.8 km, ascent 122 m, descent 161 m
- Mini Shore - mtb downhill, 0.1 km, ascent 0 m, descent 24 m
- Mini Trail - mtb, network lcn, 0.1 km, ascent 0 m, descent 4 m
- Miniere - mtb allmountain, 6.3 km, ascent 308 m, descent 329 m
- Minnesota River Bottoms - mtb
- Miňonka - mtb, 1.8 km, ascent 151 m, descent 4 m
- Minooka Park Mountain Bike Trail - mtb, network lcn
- Minor Taur - mtb
- Minor Threat - mtb, operator Okanogan-Wenatchee National Forest, 0.3 km, ascent 0 m, descent 24 m
- Mirnockriesen-Trail | nock/bike Trail T19 - mtb, network lcn, 3 km, ascent 0 m, descent 782 m
- Mislalm - mtb crosscountry, operator Tirol
- Miss Piggy - mtb
- Missing Link - mtb crosscountry, 1.1 km, ascent 52 m, descent 8 m
- Missing Link - mtb, 1.1 km, ascent 18 m, descent 5 m
- Missionary Ridge Trail - mtb trial
- Mistberget Sva - mtb crosscountry, 1.5 km, ascent 37 m, descent 91 m
- Misty Twist - mtb crosscountry, 2.8 km, ascent 166 m, descent 169 m
- Mittagkopf-Tour - mtb, operator Tirol, 7.3 km, ascent 0 m, descent 883 m
- Mittåkläppen - mtb downhill, 2.1 km, ascent 10 m, descent 133 m
- Mittelbergweg - mtb, operator Land Tirol, 1.9 km, ascent 0 m, descent 171 m
- Mittelstation - mtb, network lcn, operator Land Tirol, 3.6 km, ascent 324 m, descent 0 m
- Mittenspåret - mtb downhill, 0.4 km, ascent 5 m, descent 14 m
- Mitterberg - mtb, 0.5 km, ascent 16 m, descent 0 m
- Mitterberg - Hausstatt - mtb
- Mitterkopfrunde - mtb
- Mittersee - mtb, network lcn, operator Tirol, 6 km, ascent 125 m, descent 102 m
- Mittlach -Schnepfenried - mtb, network lcn
- Mixte Leimbach Rammersmatt Michelbach - mtb, network lcn
- ML9 Loop Firetrail - mtb, 0.4 km, ascent 1 m, descent 5 m
- Mniejsza Pętla Kamienicka - mtb, network lcn, 21.9 km, ascent 439 m, descent 447 m
- Mo Flow - mtb, 1.7 km, ascent 14 m, descent 14 m
- MOAB - mtb, 1.1 km, ascent 0 m, descent 23 m
- Moab Trails - mtb crosscountry, 6.9 km, ascent 153 m, descent 180 m
- Moaralmstraße - mtb, network rcn, 5.5 km, ascent 483 m, descent 8 m
- Moberg - mtb, 3.6 km, ascent 15 m, descent 15 m
- Močidla - mtb, network lcn, operator Kokořínské stezky z.s., 3.2 km, ascent 110 m, descent 1 m
- MoCo Epic - mtb, network lcn
- MoCoEpic South - mtb crosscountry
- modrá - Selský flow trail - mtb singletrack, operator Dolní Morava
- Modralová - mtb, 4.5 km, ascent 58 m, descent 182 m
- Modrý trail - mtb allmountain
- Moel Famau Loop - mtb crosscountry
- Moerangi Track - mtb crosscountry, 31.9 km, ascent 1275 m, descent 1465 m
- Mofete 1 - mtb freeride, 0.9 km, ascent 5 m, descent 33 m
- Moffitt's Edge - mtb, 1.5 km, ascent 206 m, descent 5 m
- Mogetorpsleden - mtb
- Moggill Loop - mtb crosscountry
- Moio-Malabotta MTB - mtb, network lcn, 28.7 km, ascent 1545 m, descent 1548 m
- Mojo - mtb crosscountry, 3.4 km, ascent 70 m, descent 76 m
- Mokhisi - Didgori - Chili lake - mtb, 39.9 km, ascent 755 m, descent 1773 m
- Mola del Biscione-Pascolaro - mtb crosscountry/allmountain, network lcn, 2.6 km, ascent 91 m, descent 14 m
- Molina di Ledro - Bocca Fortini - mtb, network mtb, operator Consorzio Pro Loco Valle di Ledro, 6.8 km, ascent 25 m, descent 607 m
- Molino - mtb, 0.9 km, ascent 29 m, descent 27 m
- Molino dell'Archetto - PTIZ1 var. lunga - mtb crosscountry, network mtb, operator Comune di Tizzano Val Parma, 16.1 km, ascent 874 m, descent 573 m
- Mollseifen & Hesborner Wald - mtb, network lcn, operator bike arena sauerland
- Molly Hogan Trail - mtb, 1.6 km, ascent 522 m, descent 250 m
- Mombeltrán - mtb, operator Mancomunidad de Municipios del Bajo Tiétar - Centro BTT "Bajo Tiétar", 20.9 km, ascent 839 m, descent 835 m
- Momhøj Rød MTB rute - mtb
- Momhøje Blå MTB rute - mtb, network lcn, operator Naturstyrelsen
- Monachine - mtb
- Monarch Crest - mtb, 16.5 km, ascent 473 m, descent 571 m
- Monarch Singletrack - mtb, operator MORC
- Monastero di San Luca - mtb crosscountry, 0.3 km, ascent 14 m, descent 7 m
- Monchu - mtb downhill, 0.6 km, ascent 0 m, descent 107 m
- Mondseebergrunde I - mtb crosscountry, network lcn, 18.3 km, ascent 502 m, descent 502 m
- Mondseebergrunde II - mtb crosscountry, network lcn, 28.9 km, ascent 755 m, descent 755 m
- Monêtier - Villeneuve - mtb crosscountry, network lcn, 6.3 km, ascent 41 m, descent 117 m
- Monica - mtb downhill, 2.1 km, ascent 6 m, descent 164 m
- Mönichkirchen Strecke - mtb
- Mönichkirchen-Trail downhill (kostenpflichtig) - mtb, network lcn
- Monkey Downhill - mtb, network lcn, operator Hunter Mountain Bike Association, 1.8 km, ascent 3 m, descent 255 m
- Monplaisir - mtb, network lcn
- Monstein - mtb, network lcn, 38.8 km, ascent 970 m, descent 969 m
- Mont de Fourche - mtb, network lcn, 4.8 km, ascent 66 m, descent 66 m