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Top level aluminium street-trials bike from Extention, the Jarvis features front and rear thru-axles and a tapered head tube. The frame and forks feature post mount brake mounts removing the need for an adaptor. The BB24 drivetrain gets an upgrade to an even stiffer BB30 setup.
✅ Custom Trialshop.pl upgrade - stronger spokes in classy black with black nipples for ultra stealth!
✅ Brake hose installed through steerer tube as standard
Bikes ship within 24 hours of payment. Shipping to Europe from 12EUR. Delivery times within EU range from 2-4 working days.
Frame and fork:
- Extention Jarvis frame, 12mm thru-axle
- Extention Jarvis 1.5", 15mm thru-axle
Steering:
- Extention Forged, 90mm x 35*
- Extention carbon high riser bars
- Extention sealed headset
- Rubber grips
Drive:
- Extention Forged 6061 CNC BB30 crankset, 30mm 7075 alloy axle
- Extention 7075 CNC machined 22T bash and sprocket
- Extention 108.9 16T freewheel
- Extention 7075 CNC platform pedals
- Extention chain tensioner
- Yaban chain
Front wheel:
- Extention 15mm hub, disc
- MT disc rim, double wall
- Sapim spokes, black
- Sapim Polyax brass nipples
- Maxxis Holy Roller 24 x 2.4" tyre
- Kenda tube
Rear wheel:
- Extention 142mm 12mm thru-axle hub
- MT disc rim, double wall
- Sapim spokes, black
- Sapim Polyax brass nipples
- Maxxis Holy Roller 24 x 2.4" tyre
- Kenda tube
Brakes:
- Avid BB5 caliper, Avid FR5 brake levers, Jagwire cables
- Optional upgrade: Magura MT5, MT7 HC, Czar
- Rotors: Avid CSG3 180mm (Avid or Czar brakes), Magura Storm HC 180mm (Magura brakes)
Weight:
| Warranty | 6 months |
| Wheelbase | 965mm |
| BB rise | 15mm |
| Chainstays | 362mm |
| Head tube angle | 74* |
| Reach | 665mm |
