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Suspension » Anti-Roll Bars

Find the right product for you: 1.- Select Make:   All Values ALFA ROMEO ASTON MARTIN AUDI BMW BMW MINI CHRYSLER DAEWOO DAIHATSU FIAT FORD HONDA HYUNDAI JAGUAR JEEP KIA LANDROVER MAZDA MERCEDES MG MITSUBISHI NISSAN PEUGEOT PORSCHE PROTON RENAULT ROVER SEAT SKODA SUBARU SUZUKI TOYOTA TRIUMPH VAUXHALL VOLVO VW 2.- Select Car Model:     All Values 1 SERIES (E81,E87,E82,E88) 105 145/146 147 155 156 159 2000 2000-2500-TC-PI 200SX 205 206 240 240Z 260 260Z 3 300ZX 323 350Z 360 6 740 75 760 90 90 & 100 911 924 928 A CLASS A3 A4 A6 ACCENT ACCORD ALFETTA ALMERA ALTEA APPLAUSE ASTRA BALENO BEETLE BORA BOXSTER BRAVO/BRAVA C CLASS CALIBRA CAPRI CAYENNE CAYMAN CELICA CHARADE CHEROKEE CIVIC CLIO CLK CLS CONCERTO CORDOBA COROLLA CORRADO CORSA CORTINA COUPE CRV DB5 DBS DEFENDER E CLASS E-TYPE E12 E21 E24 E28 E3 E30 E34 E36 E39 E46 E60-61 E63-64 E90-93 EOS ESCORT1&2 ESPERO FABIA FOCUS FORESTER FTO GETZ GIULIETTA GOLF1 GOLF2 GOLF3 GOLF4 GOLF5 GOLF6 IBIZA IGNIS IMPREZA INTEGRA JETTA LAGONDA LANCER LEGACY LEGANZA LEGEND LEON LIANA MGB MICRA MINI MK2 MONARO MONDEO MR2 MUSTANG MX3 MX5 MX6 OCTAVIA PASSAT PERSONA POLO PRELUDE PROBE PT RANGE ROVER RAV4 RIO RX7 RX8 S & RS MODELS S2000 S40/V40 SATRIA SCIROCCO SHUMA SIRION SKYLINE SLK SOARER STAG STARION STARLET SUD/SPRINT SUNNY SUPRA SWIFT T5 TERRANO TOLEDO TOURAN TR TT TYPE2 VARIANT VECTRA VENTO WIRA X-TRAIL X3 X5 XJ YARIS Z3 Z4 Z8 3.- Select Brand:     All Values BMS EIBACH H&R NEUSPEED WHITELINE

Uprated anti-roll bars are one of the most effective ways of improving not only the handling of a car but also outright grip levels. The majority of cars produced today have some form of anti-roll bar. The biggest advantage of the anti-roll bar is that you can limit roll in corners whilst still retaining suspension travel and a good ride. Uprating the anti-roll bar for a larger one increases the roll stiffness at that end of the car (Eibach kits contain front and rear bars). If the roll stiffness is increased so is the weight transfer.

Uprating the bar at one end only means that pair of tyres must carry a higher load. Depending on the handling balance of front to rear this will either increase or decrease outright grip. For example on a Mk4 Golf if you uprate the front bar only the car will reduce it's outright grip level as it already has too much front roll stiffness and not enough rear. To make the Golf Mk4 handle you need a stiffer rear bar only. 

This is the case for most front wheel drive cars - uprate the rear bar - which makes the rear of the car work more and prevents understeer. If you bought front and rear you would tend to run the front soft and the back hard. In a rear wheel drive car you'd tend to uprate the front bar more than the back as you can steer with the throttle. Four wheel drive vary between these two depending on a number of factors including torque split. For example Audi Quattros need rear bar only in most cases. Another factor to consider is feel - body roll can be nauseating so adding anti-roll bars makes the drive more pleasant, again without ruining ride.

Go too far on the bar which is connected to the driven wheels and you will run into traction problems. This is why you tend to uprate rear bar on FWD and front bar on RWD. However do bear in mind that increased grip can come not only by optimising the tyre loads front to rear but also by better geometry underload. Excessive body roll on most macpherson strut cars causes unfavourable geometry change - eg loss of camber and caster. A stiff anti-roll bar combination will keep the wheel closer to it's optimum angles.

The Whiteline bars which are available separately give you more freedom of choice depending on what you need from your car. 

Another big plus of the anti-roll bar is they are often easily adjustable. You may have spent a lot of time and effort setting up coilovers to ensure the best weight distribution, you then find for instance the front end is understeering on a tight circuit you’ve not visited before. It is much easier to adjust an anti-roll bar than change the springs.

Please note we do not advocate modifications which promote unstable handling. If you need this for drifting (not for road or track) please ask! Special ARB's can be custom made. 12 week waiting time.