Welcome to Underbone Tuner

Underbone tuner is a free online magazine for Underbones, Scooters, Backbones and occasionally we might squeeze in a big bike or two . We have been covering small motorcycles modifying culture for over 8 years already and still counting. We have the latest updates/news on motorcycle racing events from all over the country such as circuit, motocross, flat track, endurance, trail and supermoto. We cover motorshows from all over the country. We cover the latest bike launches and the latest trends in bike modifying culture.

But at the core of Underbone Tuner is the bike modifying / customizing culture. We scour the country for the best motorcycle builders/modifiers. We feature the owners of these amazing bikes and the talented teams and individuals behind these bikes. We give you the story behind those builds and hopefully we inspire others to keep this fascinating culture alive.

This website is dedicated to all motorcycle enthusiasts, this our life, this is our passion, this is who we are. We may be riding different bikes but we share the same fascination and love for motorcycles. We are all brothers in two wheels.


Monday, June 29, 2009

Featured Bike CRF150R

Just about the size of your regular XRM Underbone but with a compact high
performance 150cc engine. All the advance race features of its bigger
brothers CRF250 and CRF450. This bike will give any 200 and 250 all
that they could handle. An Excellent bike for a mini-motard, agile, hostile
and versatile.

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Engine and Transmission Specs:
Displacement: 149.00 ccm (9.09 cubic inches)
Engine type: Single cylinder
Stroke: 4
Power: 22.26 HP (16.2 kW)) @ 12500 RPM
Torque: 13.60 Nm (1.4 kgf-m or 10.0 ft.lbs) @ 10000 RPM
Compression: 11.7:1
Bore x stroke: 66.0 x 43.7 mm (2.6 x 1.7 inches)
Fuel system: Carburettor
Valves per cylinder: 4
Fuel control: SOHC
Ignition: Solid-state Capacitor Discharge (CDI) with electronic advance
Starter: Kick
Cooling system: Liquid
Gearbox: 5-speed
Transmission type
final drive: Chain

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Friday, June 26, 2009

PTT & Evvolve Underbone Rally Cross Gallery 3

Photos by: Arnel B. Santos-Ynigo
Ed Bacayo

2 stroke motard
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PSR Showtime
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DUBSTER Dirt Raider
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DUBSTER Drift
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PSR Dirt Bikes
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Bobby Mencias
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Gary Caneda
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Honda Motor World Dirt Riders with Tata Casia
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Tuesday, June 23, 2009

Hot New Videos: OZR GP 2nd Leg Novice, Expert and Automatic Open

Official Race Videos from OZR Corp.

Video and editing by: Icymar "Iceman" Tagimacruz

Expert Open


Novice Open


Mixed Automatic Open


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Saturday, June 20, 2009

PTT & Evvolve Underbone Rally Cross 2009 Gallery 2 and Race Video

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Enrique Adol of Team Pidot
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PSR Dudes
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Bobby Mencias
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The One-Two Punch from Dumaguete Ivan and Winsor of DUEKSAM-NC Racing
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Matti Ladesa of STR RUSCO
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PTT & Evvolve Underbone Rally Cross Video
80's Music by John Farnham - Thunder in your Heart
RAD Movie Sound Track
request sa mga natawo sa dekada 80 =)



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