Also known as: Taipei trails
Ridge views over the Taipei basin and Taipei 101 skyline; Beitou's Battleship Rock outcrop, temple and nearby hot springs; Yangmingshan volcanic landscape, Qixingshan/Datunshan, Qingtiangang grassland and fumaroles.

Whether everyone in your group gets a day at Taipei (Yangmingshan / Neihu / Beitou) - the grades on offer, the named zones, and how mixed abilities split up.
Trailforks green/blue/black-diamond. Well-used Strava segments (e.g. Wuzhishan first/second sections, DanFeng jungle runs).
GROUP SPLIT: Neihu is explicitly shuttle-served (drive/scooter up Wuzhishan military road, regroup at the top cafe/Helen's Coffee, then choose lines by ability); Beitou's small hill suits self-shuttled short laps regrouping at the temple; Yangmingshan uses point-to-point shuttled enduro links with road nodes as turnarounds.
Enthusiast/intermediate-advanced overall, with some green options (Neihu Cuca's Trail, Beitou beginner doubletrack). E-bikes allowed on many trails. Shuttle-friendly for mixed fitness.
Neihu technical rooty/rocky singletrack with stairs and paved links; Beitou grippy volcanic sandstone/tuff and textured soil; Yangmingshan wet rooty/rocky singletrack and stone-step old trails.
All-Mountain and Downhill. Neihu: tight rooty tree-lined singletrack, rock gardens, drops, skinnies, often wet/mossy with rebar hazards from trail-building. Beitou: berms, drops, jumps on grippy volcanic sandstone (driest zone). Yangmingshan: rooty, rock and stone-step old trails, perennially slippery. Moderate exposure.
No formal MTB waymarking - mostly social/unsanctioned trails; hiking old-trails partly signposted. GPS/Trailforks app strongly advised; local knowledge helps find lines.
Shared with many hikers on weekends across all three areas (repeated mind-the-hikers warnings); weekdays quieter. Yangmingshan sees the highest hiker/tourist volume.
Year-round (no snow); avoid wet spells for slippery roots and rock.
Subtropical, year-round rideable; drier winter/spring months preferred for grip. Ride-log peaks around Oct-Feb.
No formal MTB events; Beitou's driest-in-Taipei trade-wind grip is its selling point; Yangmingshan spring cherry blossoms and autumn silvergrass draw large tourist crowds.
Typhoon season roughly Jun-Oct (closures, windfall/deadfall); high humidity and frequently wet/mossy surfaces make slick roots and rock; Yangmingshan is the wettest/foggiest zone with volcanic fumarole areas.
Neihu and Beitou are city-managed, free, outside the national park. Yangmingshan National Park entry is free with no general MTB permit or lottery, but summit and stone-step hiking trails are hiking-only and cycling is officially channeled onto roads (park singletrack is a hiker-priority grey area - VERIFY with park HQ).
Permits and operators change - confirm before booking.
Taipei MRT serves the districts (Neihu Wenhu/Brown line; Beitou via Qilian/Shipai on the Red line; Jiantan/Beitou plus bus for Yangmingshan). Neihu and Yangmingshan ridge tops need a road climb, so most riders shuttle by vehicle/scooter.
Neihu is shuttle-oriented (the Ski Lift name comes from shuttling up and descending); Beitou needs little shuttle; Yangmingshan uses shuttles for point-to-point links plus public buses to road nodes.
Carry water (few or no on-trail vendors, though the Neihu ridge and Beitou area have cafes/temples). Mobile coverage generally decent near the city, patchy in Yangmingshan valleys. Full-suspension AM/enduro (or DH for Neihu) recommended.
Neihu ridge cafe(s); Beitou temple and nearby hot-spring facilities; Yangmingshan park visitor centers, toilets, hot springs and cafes at road nodes.
Simple Gravity Adventures Ltd. (Trailforks-listed guiding/tours for all three areas); Taipei Bike Works (shop/guided, mostly road for Yangmingshan); Alan's Mountain Bike (English-service shop); Formosan Fat Tire Association (historic English trail write-ups). Rainbow Riverside Park pumptrack for skills.
Neihu: rebar/metal in trail, moto-caused erosion, wet rock/roots, weekend hiker conflict. Beitou: hiker conflict, a gate closing around 17:30 on Lunar Surface Climb, stray dogs and short carry sections. Yangmingshan: dominant hiker conflict, wet slick rock, national-park sensitivity (yield, avoid protected/summit trails), fumarole hazard zones and typhoon deadfall.
None required; a guide is advisable on a first visit given hard trailfinding and, on Yangmingshan, navigation, private land and etiquette.
Urban proximity aids rescue; multiple road crossings/link roads provide bail points. Beitou is adjacent to Veterans General Hospital. Dial 119.
This profile is desk research, compiled from public sources - not a first-hand mountain-bike network report. Coordinates are approximate.