ULTRA RACING 2-Point Rear Strut Bar: Chevrolet Optra [UR-RE2-753]

Feature available to Store Members

A strut bar or strut brace is a mostly aftermarket car suspension accessory used in conjunction with MacPherson struts on monocoque or unibody chassis to provide extra strength between the strut towers.

With a MacPherson strut suspension system where the spring and shock absorber are combined in the one suspension unit, the entire vertical suspension load is transmitted to the top of the vehicle's strut tower, unlike a double wishbone suspension where the spring and shock absorber may share the load separately. In general terms, a strut tower in a monocoque chassis is a reinforced portion of the inner wheel well and is not necessarily directly connected to the main chassis rails. For this reason there is inherent flex within the strut towers relative to the chassis rails.

A strut bar is designed to reduce this strut tower flex by tying two parallel strut towers together. This transmits the load of each strut tower during cornering via tension and compression of the strut bar which shares the load between both towers and reduces chassis flex.

Performance: Resulting from the improved chassis rigidity (similar to that gained from a lower arm bar); may be improved steering precision under high load conditions (cornering and braking). Reduced understeer, tire wear and metal fatigue in the strut tower area may also be experienced.

Benefit after Installing:

• Improve Car Stability at least 40% & above
• Reduce Understeer
• Improve Braking Performance
• Reduce Body Roll
• Improve Sharp Cornering
• Improve Safety Aspect & Comfort
• Improve Handling Stability
• Highly Recommended for Steet, Track, Drift, Rally, Autocross, Gymkhana, Drag Racing and etc

Understanding Between Chassis and Handling : : :

A car chassis is carry by 4 wheels and 4 shock absorbers. When driving on bumpy road, the shock of impact will be absorb by shock absorber, however if the chassis is not strong enough to support the shock absorber, the shock of impact will not all absorb by shock absorber but by chassis, causing chassis flex. Same thing happen when make a turn on corner, chassis will be twisted by the force of weight transfer. Therefore, the handling will be rough and hard to predict the movement of car.  To soft the chassis flex problem and improve the handling, the Ultra Racing's chassis strengthen parts is born, we will explain how this product works on you car. The stronger chassis, the better handling.

Strut Bar and Lower Arm Bar : : :

BEFORE :  Part of the shock of impact transfer to the chassis, causing wheel house and lower arm deforming.  AFTER :  Equip with the Ultra Racing's strut bar and lower arm bar, both side shock of impact will be neutralized.

< < < While entering at corner > > >

BEFORE :  The weight transfer and force gathering on one side, causing unstable handling and increasing body roll. AFTER :  The force will spread out by Ultra Racing's strut bar and lower arm bar, stabilize the car and provide solid handling.

Fender Bar : : :

BEFORE :  The joint between A-pillar and front chassis will be push and twist by the greater shock of impact and drag force, causing damage on chassis. AFTER :  Ultra Racing's Fender bar will spread out the force and strengthen the section, prevent further damage and offer stable handling. Recommend for user of sport absorber

Side Lower Bar : : :

BEFORE :  On uneven / bumpy road, center section chassis will have different level of body flex cause by the weight transfer between front and rear.  AFTER :  Ultra Racing's side lower bar will stabilize the weight transfer between front and rear, it can also minimize the damage from side impact.

Anti-Roll Bar : : :

BEFORE :  When turning in corner, the weight transfer will make the car sway a side, causing body roll and more difficult to turn in to a corner, weaken the steering respond.  AFTER :  The upgrade version of Ultra Racing's anti roll bar will be more effectively preventing the car sway a side at cornering, greatly reduce body roll and high stability in cornering

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