The HUP xc20 is a lightweight hardtail MTB for cross-country trails, adventures or just plain fun. Born and raised at the UCI MTB World Champs in Glentress, Scotland in 2023, it's a double-butted 7005 frame with boost thru-axles, UDH hanger and XC race-focused geometry. A rocketship of a bike for riders age 4+

Progressive Geo: low standover, slack 66º fork, short stays and designed for 100mm or 120mm forks
Full Size Wheels: 406mm 20" wheels running up to 2.4" tyres
Lightweight: strong, double-butted 7005, UDH hanger - with builds as light as 8.3kg
Custom Components: custom length cranks, droppers, big gearing, hydraulic brakes (+upgrades as they grow)
Quality Throughout: only top brands including SRAM, FSA, Jagwire, Fulcrum, Rockshox, Manitou, Tekro & KMC
Build Flexibility: frame only, self-build bundles (with/without wheels/fork) or individual components or use your own parts

Lightweight for the climbs (we believe it's easily the lightest 20" Aluminium frame on the market), but still highly capable on the fun descents, bike parks trails or sweeping berms. The low standover/low stack gives riders the space to move on the tech sections. Big wheels for it's rider's size, kids-specific geometry (slightly slacker fork angle) and correct fitting components create an agile, responsive and seriously fun bike. The tiny squad had epic days out testing and developing the HUP xc in the Glentress forest, near Peebles.

The frame fits riders from approx 105cm upwards with a low maintenance design featuring full length outer cabling (including the option to fit a dropper post) plus the latest standards such as 12mm thru-axles, 2.4" tyre clearance and a tapered head tube - ensuring future compatibility. SRAM's Universal Deraillieur Hanger system (UDH) also brings the ease of a widely available hanger - so you don't get stuck on the trails after a tumble.

Included with this frame: frame, headset, mech hanger, thru-axle & cable fittings. Self-build bundles or components available separately. HUP frames are handmade/painted in Taiwan. Frame protection tape is highly recommended.

Frame Material: Aluminium Alloy 7005 (double-butted)
Frame Weight: approx 1190g
Colours: Dark Grey, Purple or Silver (we always recommend you fit frame protection tape)
Headset: Lightweight FSA No.42 ACB sealed bearing
Brake Type: Post mount disc: 160mm or 180mm rotors
Fork Size: optimised for 100mm or 120mm
Seatpost Diameter: 31.6mm
Bottom Bracket: 73mm BSA English threaded
BB Axle length (HUP cranks): 118mm SQT
Rear Axle OLD: 142mm Shimano 12mm thru-axle, 47-49mm chainline
Tyre Clearance: 2.4" on 406mm wheels
Maximum Chainring: 30T on HUP cranks (recommend minimum of 10-speed chain & max 38T cassette)
Cabling: external
Max Weight: 50kg and ASTM Category 3 usage (not for Dirt Jump, Enduro or Downhill)

Age Range: 4-years old and up
Sizing: CLICK HERE

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The HUPcc range

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HUP xc: latest lightweight hardtail MTB

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