- High quality 20" wheel trials bike from Onza, ideal for fast-learning beginners or intermediate riders.
- High grade 6061-U6 aluminium frame with rear disc mount, integrated chain tensioners and head tube reinforcing gussets.
- Tough Onza cromoly forks with disc brake mount.
- Super powerful front 180mm Onza cable disc and rear Magura HS11 hydraulic brake with Tensile 4-bolt clamps.
- Drilled Onza rim on the rear and Onza Hog front rim with sidewall drillings and square holes to further reduce the weight.
- Onza sealed rear hub and front open bearing disc hubs are both powder coated white.
- Maxxis Creepy Crawler tyres, 20 x 2.0" front and 19 x 2.5" rear.
- Onza ISIS crankset with lightweight aluminium alloy bashring provides a stiffer pedaling response than square taper setups.
- Anodised Onza bash/ski-plate fitted as standard.
- Onza cromo riser 31.8mm trials handlebar.
- Onza alloy 31.8mm stem to reduce weight.
- New Onza caged pedals.
- Tensile 60 engagement 18T freewheel fitted to the cranks for great pedalling response, running 18-12 gear ratio.
- Powder coat white frame with gold Onza graphics and parts.
- Durable K810 Kool chain fitted as standard.
Geometry
Wheelbase: 1020mm
Chainstay Length: 350mm
BB Rise: 70mm
Weight: 10.4kg
Free Items with this Bike! (Subject to stock availability)
As riders ourselves, we know exactly how to improve standard build bikes to ensure the best possible enjoyment for the rider. Instead of cutting prices, we spend extra time setting the bikes up to a high standard (which takes almost an hour per bike), and we also include the following items free of charge:

TartyBikes T-Shirt: We have Extra Small, Small, Medium, Large and Extra Large available (Men's sizes) in varying colours, click the link to see what we currently have available. Please ensure you specify which size T-Shirt you would like - it's unlikely our guess will be correct!
TartyBikes Chainstay Protector: Nifty little device to protect the paintwork on your frame when the chain slaps against it. One logo on each side... choose whichever you prefer!
TartyBikes MultiTool: What better to help tweak and set up your bike than a designed-for-purpose multitool?
You'll also receive some free TartyBikes stickers to use wherever you like!
Please ensure all the details on the warranty sheet supplied with the bike are adhered to. Certain circumstances (such as stripped threads or rounded crank arm tapers) only occur due to a lack of correct maintenance and all manufacturers are aware of these situations, so any claims due to incorrect maintenance procedures are much less likely to be successful.

Average Rating (Based on 1 customer rating)
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Excellent starter/intermediate bike

Posted by Martin on 14/03/2011
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This is an awesome bike. The frame geometry is excellent, nice high bottom bracket makes balancing on the back wheel, gaping, ect easy and natural. It is quite heavy, first thing i did was change to ally bars and forks, and almost saved myself a kg. I did crack this frame around the brake mounts within two months, don't know if it was a fault batch, but there is alot of frame flex, so id suggest a brake booster. Overall an excellent bike