Dobinsons MRA Adjustable 50mm Front Struts for Holden Colorado RG – Premium Lift Kit

This front strut kit delivers 50mm (approximately 2 inches) of front lift height over factory suspension when measured at the wheel arch. Actual lift may vary slightly depending on your vehicle's existing suspension condition, constant accessory load (bull bar, winch, etc.), and selected spring rate. The 50mm lift significantly improves ground clearance, approach angles, and allows fitment of larger tyres up to 32-33 inches diameter when combined with appropriate wheel offset. This lift height is ideal for serious touring and off-road use while maintaining comfortable on-road manners and avoiding the need for extensive additional modifications like transmission and transfer case drops.

The kit includes two Dobinsons MRA Adjustable Front Struts with integrated remote reservoirs, pre-assembled with Dobinsons coil springs matched to your selected load rating. Each strut features 3-way damping adjustment (high-speed compression, low-speed compression, and rebound), 50mm monotube bore construction, 6063 honed aluminium reservoirs, and the advanced 3-stage sealing system. The springs come pre-assembled to save installation time and ensure correct fitment. Please note that upper control arms, brake line extensions, sway bar links, and any other complementary suspension components are sold separately and may be required depending on your vehicle's existing modifications and intended use.

Yes, when correctly specified with appropriate spring rates for your constant front-end load, these MRA struts are excellent for towing applications. The adjustable 3-way damping system allows you to increase compression damping when towing heavy loads, reducing front-end dive under braking and maintaining better weight distribution. However, these are front struts only—for optimal towing performance, you should pair them with appropriately rated rear leaf springs or coil springs for your Colorado RG. Many customers also add airbag suspension to the rear to provide variable load support and maintain level vehicle attitude when connecting heavy caravans or camper trailers, creating the ultimate towing and touring platform.

While not absolutely mandatory, upgraded upper control arms are strongly recommended when installing a 50mm front lift on your Holden Colorado RG. Lifting the front suspension by 50mm can alter castor angle and ball joint angles beyond factory specifications, potentially causing premature wear to CV joints, steering components, and tyres. Aftermarket adjustable upper control arms restore correct suspension geometry, improve steering feel and stability, and allow proper wheel alignment to factory specifications. They also typically feature heavy-duty construction with greasable joints that outlast factory components in harsh off-road conditions. Our suspension specialists can recommend specific control arm options during your order to complete your suspension upgrade properly.

Yes, a full 4-wheel alignment is absolutely mandatory after installing this lift kit. Raising your Colorado RG's front suspension by 50mm significantly alters camber, castor, and toe angles from factory specifications, which will cause rapid and uneven tyre wear, poor handling characteristics, and potentially dangerous steering behavior if left uncorrected. The alignment must be performed by a qualified technician using a computerized alignment system, preferably one experienced with lifted 4WD vehicles. We recommend performing the alignment after a 500km settling period to allow bushings and springs to compress to their normal operating position. Keep your alignment certificate for warranty purposes and have alignment checked every 10,000km or after any significant off-road driving.

Yes, Dobinsons offers multiple spring rate options to match your specific constant accessory load, and selecting the correct rate is crucial for ride quality and suspension longevity. During the ordering process, you'll be asked to specify your front constant load—this should include only permanently installed accessories like bull bars, winches, long-range tanks, and heavy-duty batteries. It's critical to select based on actual constant weight, not occasional loads like camping gear or passengers. Over-rating your springs (choosing too heavy a rate) will result in a harsh, jarring ride and may damage other suspension components through excessive shock loading. Under-rating will cause the vehicle to sit lower than intended and bottom out more easily. Our team can help calculate your total accessory weight and recommend the optimal spring rate for your specific Colorado RG setup.

Yes, the 50mm front lift provided by these Dobinsons MRA struts, when combined with an appropriate rear lift, typically allows fitment of tyres up to 32-33 inches in diameter (285/75R16 or 265/70R17 equivalent sizes) with standard wheel offset and minimal to no rubbing. Tyre fitment depends on several factors including wheel offset, tyre brand and tread pattern (some brands run wider than others), and whether you've installed aftermarket guards or flares. For larger tyres beyond 33 inches, you may require additional modifications such as guard trimming, body mount chops, or aftermarket flares. Always test fit new tyres and check clearance at full lock and full compression before committing to extended off-road driving. Our suspension experts can provide specific tyre recommendations based on your wheel specs and intended use.

Dobinsons stands behind their MRA Adjustable Front Struts with a comprehensive manufacturer's warranty covering defects in materials and workmanship. The specific warranty period and terms are provided with your kit and typically extend to multiple years depending on the component. Warranty coverage requires professional installation by a qualified technician, proper maintenance including regular inspections and cleaning, and use within the product's designed load and application limits. Modifications to the struts, use in competitive motorsport, or failure to maintain proper vehicle alignment may void warranty coverage. We recommend keeping all installation receipts, alignment certificates, and service records to support any potential warranty claims. For detailed warranty terms or to discuss coverage, contact our customer service team who can provide specific information for your purchase.

Absolutely—one of the key advantages of the Dobinsons MRA Adjustable system is its ability to deliver exceptional daily driving comfort while maintaining serious off-road capability. The reduced internal friction design, advanced sealing system, and 3-way adjustable damping allow you to tune the struts for a remarkably smooth highway ride that rivals or exceeds factory suspension comfort. For daily commuting and highway driving, you can dial in softer compression settings for plush ride quality, then stiffen compression and rebound when heading off-road or carrying heavy loads on the weekend. Many Colorado RG owners report that the MRA system actually improves daily driving comfort compared to worn factory suspension while simultaneously delivering better control, reduced body roll, and superior capability when the sealed road ends. The adjustability means you're never compromising between comfort and performance.