Need help?
020 7637 4004

Genesis Tarn 20

The quintessential steel UK trail hardtail - redefined.

Tarn is the dedicated 27.5+ offering, designed from the ground up around the new Boost axle standards, wider chainline and new-school progressive geometry. A beautifully crafted steel frame and an enviable part spec with the new Shimano SLX 1x11 drivetrain, Rockshox Yari RL Solo Airfork, FATlab 40mm rims, KS dropper seatpost and tubeless-ready WTB Ranger 2.8" rubber will happily handle anything and everything the UK's trails can throw at you.

Product Description


1. Seat Tube Length405445483525
2. Horizontal Toptube Length621647672699
3. Reach415440465490
4. Stack633638638643
5. Headtube Length100105105110
6. Head Angle68°68°68°68°
7. Seat Angle72°72°72°72°
8. Chanstay Length445445445445
9. BB Drop55555555
10. Wheelbase Length1154117211971224
11. fork_offset51515151
12. fork_trail94949494
13. standover778774785805
14. Stem55555555
15. Handlebar760760760760
16. Crankarm170175175175


Spec Information

Frame: Genesis Mjölnir Seamless Double-Butted Cromoly
Forks: Rockshox Yari RL, Solo Air, 120mm, Tapered
Steerer, 110mm x 15mm
Headset: Prestine PT-F17A, ID:34/ID:44
Cassette / Sprocket: Shimano SLX CS-M7000 / 11-42T
Spokes: SS 14g
Chainset: Shimano SLX FC-M7000-B 32T
Bottom Bracket: Shimano BB52
Gear/Brake Levers: Shimano SLX SL-M7000
Brakes: Shimano M506 180/160mm
Rear Mech: Shimano SLX RD-M7000-11
Chain: KMX X11
Pedals: Genesis
Seatpost: KS DropZone 31.6mm / 125mm drop
Stem: Genesis 60mm /+0deg
Tyres: WTB Ranger 27.5+x2.8"


Velorution offer free delivery on non bike orders over £75.00 to all UK Mainland addresses.

Bikes cost £25 within the M25, £30 outside

Goods are normally shipped within 48hrs of order and will be shipped by either UK Mail, TNT or Fed Ex.

Bikes are not guaranteed for same day dispatch, as we will take time to build and inspect your product before releasing it for dispatch.

If you require any other shipping arrangements, please call for a quote.

VELOFINANCE powered by

Availability: In stock


* Required Fields