Hyvinkää Biking Trails

K-18 MTB-oikaisu is a very short point-to-point mountain-bike connector—about 1 km on our map—in the Kytäjä–Usmi recreation forests west of Hyvinkää. It threads the same forest-road and path mesh as the city’s three signposted MTB loops (Karhujen, Kytömetsän, and Hyvinkään pyörähdys), so it works best as a cut-through when you are linking those circuits or approaching lakeside rest spots instead of riding the longer way around(1). The line sits in the Natura 2000 woodland between the Iso-Karhun campfire cluster and Kaksoslammien laavu, then carries on toward Latu-Miilun maja at the northern end: you pass the Kaksoslammet lean-to a few hundred metres after the start of this segment, and the ski-club cabin setting at Latu-Miilun maja sits just past the mapped finish—handy for combining with Karhujen pyörähdys, Kolmen lammen kierros on foot, or the Usmi ski loop in winter. City materials do not give this exact connector its own trail page; for how the wider MTB network is marked and managed, start from the City of Hyvinkää’s mountain-biking hub and the Karhujen pyörähdys trail page, which describe bear-on-blue waymarks, counter-clockwise looping, gravel-leaning surfaces, and parking at Usmi beach(1)(2). The same network is mirrored on Luontoon.fi for map browsing(4). The Kytäjä–Usmi outdoor area overview lists roughly 27 km of maintained MTB lines and the mix of lean-tos, dry toilets, and firewood policy across the wider trail system—expect similar etiquette on connectors(3). Experienced riders threading a longer tour through Usmi often stage from Hyvinkää station or Sveitsi, roll toward Iso-Karhu, and shape loops toward Kiiskilampi or Petkelsuo; one detailed Jälki.fi write-up notes varied forest path with short technical pitches near Iso-Karhu before continuing toward Kiiskilampi and Kaksoslammet—useful pacing context for how this terrain feels even on a kilometre-long link(5). For fat bikes, e-MTBs, or gravel rigs without your own transport, Sveitsi Rent at Hyvinkää’s Sveitsi sports cluster takes online bookings and highlights the area’s ride network(6). Hyvinkää lies in Uusimaa inland from Helsinki; treat this connector like any other forest tyre track—yield to hikers where tread is shared, carry out litter, and confirm campfire rules when warnings apply(3).

For downloadable GPX, recommended counter-clockwise riding, and a surface-by-surface breakdown, start with the City of Hyvinkää’s Karhujen pyörähdys trail page(1). The Kytäjä–Usmi mountain biking overview on the same municipal site explains how Karhujen pyörähdys, Kytömetsän pyörähdys, and Kytäjän pyörähdys form a linked trio of marked loops you can combine for longer days(2). Metsähallitus also mirrors the route on Luontoon.fi for map browsing(3). The trail is about 10.1 km as a single forest-and-road loop around the Usmi shore area. Published municipal materials describe the “three bears” circuit at roughly 11 km with about 114 m of ascent and an easy gravel-style character on public roads plus forest roads(1); use 10.1 km here for GPS alignment. Hyvinkää sits in Uusimaa, with most of the riding in the Kytäjä–Usmi recreation forests. From the Usmi beach end, you soon work along the lake margin: Usmin uimaranta and the Usminjärven talviuintipaikka make easy orientation points if you arrive by car and walk down to the water. About 1 km into the loop, Iso-Karhun nuotiopaikka and the Iso-karhun Outdoor Grill cluster offer benches, a campfire ring, and a shore-side micro-stop; Kaksoslammien laavu and Iso-Kypärän laavu bookend the twin-pond corner a little earlier, with table groups and lean-to shelter space for a longer lunch. Dry toilets sit near several of these service points—handy on a family outing. Beyond the ponds, a couple of kilometres of paved road aim toward the Hyyppärä riding yards, then narrow forest tracks and wider gravel cut through mixed woodland. Hyvinkään Ratsastuskeskuksen maneesi, Jokirannan ratsastuskoulun maneesi Hyvinkää, Stable Nova / maneesi, and Hyyppärän ratsastusmaneesi all sit within a few hundred metres of the line—expect horses, yard traffic, and occasional surface grit near those yards. About 8.7 km from the start, Latu-Miilun maja marks the Latu-Miilu skiing association cabin; winter weekends sometimes bring a small café rhythm, while summer riders use it mainly as a waypoint toward the lake. Two thirds of the loop overlaps corridors that also belong to the longer Kytäjä circuit, so junctions to Kytömetsän pyörähdys and to walking variants such as Kolmen lammen kierros appear along the eastern segments(1)(2). If you want a regional gravel menu beyond the three signed bear-themed loops, the City of Hyvinkää also promotes Hyvinkään pyörähdys “Plus” as a longer city-and-forest combination that deliberately needs a map or GPS in the urban fringe(2). After the ride, seasonal kiosks at Usmin shore sometimes sell ice cream—worth checking if the summer café is open(1).