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Entry level street-trials bike from new brand Extention, the Heimdall features a 15mm thru-axle and an internally routed front brake hose - features not found on any other bike at this price point. Horizontal dropouts are coupled with excellent chain tugs and massive M10 bolts - an important addition to firmly secure the rear wheel.
We consider the geometry of Extention bikes to be among the very best with standard measurements not reflecting what makes this bike so versatile - a longer front triangle and shorter fork rake. This is the first short wheelbased street-trials bike to have ample wheel clearance for barspins.
✅ Custom Trialshop.pl upgrade - stronger spokes in classy black!
✅ 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 Heimdall disc frame
- Extention Heimdall 1 1/8", 15mm thru-axle, disc fork
Steering:
- Extention Forged, 90mm x 35*
- Extention 6061 reinforced tripple butted high riser bars
- Extention sealed headset
- Rubber grips
Drive:
- Extention Forged 6061 CNC BB24 crankset
- Extention 7075 CNC machined 22T bash, 22T sprocket secured by 4 bolts
- Extention 108.9 16T freewheel
- Shanmashi platform nylon pedals
- Yaban chain
- Extention steel chain tugs
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 135mm hub, 10mm bolts
- 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:
- 10.35kg (MT5)
| Warranty | 6 months |
| Wheelbase | 965mm |
| BB rise | 15mm |
| Chainstays | 362mm |
| Head tube angle | 74* |
| Reach | 665mm |
