- New
Extention Heimdall street-trials bike
Once the entry level street bike of choice, the Heimdall has since integrated solutions from the more expensive models and now features a tapered head tube and Jarvis forks.
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30 day return policy (limitations may apply)
Heavily updated for 2025, the latest Heimdall features a tapered head tube, Jarvis forks with post-mount, screw on grips and a wide range of minor structural improvements.
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 - uprated Sapim spokes
✅ Brake hose installed through steerer tube as standard
This bike delivers to the EU in 2-4 days. Shipping starts at just €19. Check the delivery tab for details.
Frame and fork:
- Extention Heimdall disc frame, tapered
- Extention Jarvis taper, 15mm thru-axle, post mount fork
Steering:
- Extention Forged, 90mm x 35* stem
- Extention 6061 reinforced tripple butted high riser bars
- Extention sealed headset
- Rubber lock on grips
Drive:
- Extention Forged 7050-T6 BB24 crankset
- Extention DUB bashring with integrated chainring
- Extention 108.9 16T freewheel
- Shanmashi platform nylon pedals
- KMC Z1eHX chain
- Extention alloy chain tugs
Front wheel:
- Extention 15mm hub, disc
- Double wall reinforced alloy rims
- Sapim spokes
- Sapim Polyax brass nipples
- Maxxis Holy Roller 2.4" 24" tyre
- Kenda tube
Rear wheel:
- Extention 135mm hub, 10mm bolts
- Double wall reinforced alloy rim
- Sapim spokes
- Sapim Polyax brass nipples
- Maxxis Holy Roller 2.4" 24" tyre
- Kenda tube
Brakes:
- Magura MT Sport, MT5, MT7, MT Trail SL Carbon brakes
- Magura QM12 adaptor or Hope depending on availability
- Magura Storm 180mm rotors
- MT Trail SL Carbon brakes come switched meaning the rear brake uses a 4 pot and front a 2 pot calliper. These brakes are equivalent in performance to the MT7 and MT8 while maintaining lower weight thanks to carbon lever blades.
Weight:
- 10.62kg (MT7)
1294
New
Additional info
- Warranty
- 6 months
- Wheelbase
- 965mm
- BB rise
- 15mm
- Chainstays
- 362mm
- Head tube angle
- 74*
- Reach
- 660mm
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Once the entry level street bike of choice, the Heimdall has since integrated solutions from the more expensive models and now features a tapered head tube and Jarvis forks.
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