Menu

Losi RZR Rey Front Upper Arm Shock Mount and ESC Mount Z-LOS231099

Model No: Z-LOS231099


COMING SOON 17/06/2026

Coming Soon - Stock Arriving: 17/06/2026

Stock Arriving: 17/06/2026

£10.99

£1.10

£9.89

Inc VAT

1 Year Warranty
We Accept
  • Brand: Losi
  • Model Number: Z-LOS231099
  • Part Type: Front Upper Arm/Shock Mount and ESC Mount
  • Compatible Vehicle: Losi 1/10 RZR Rey 4WD Brushless RTR
  • Compatible Variants: C-LOS03029T1 (Polaris), C-LOS03029T2 (Fox)
  • Vehicle Scale: 1/10
  • Drive System: 4WD
  • Power System: Brushless
  • Component Function: Suspension/Chassis mounting
  • EAN Code: 0605482168295
  • Spare Part Category: Chassis Spares

Overview

The Losi Front Upper Arm/Shock Mount and ESC Mount for the RZR Rey is an essential replacement or upgrade component designed specifically for your 1/10 scale Losi 4WD brushless RC vehicle. This precision-engineered spare part combines two critical chassis functions in one assembly: the front upper arm mounting system and the Electronic Speed Controller mount. Whether you are restoring a damaged model, upgrading your existing RZR Rey setup, or building a complete custom configuration, this genuine Losi component ensures perfect fitment and reliable performance on the track or off-road terrain.

If you own a Losi 1/10 RZR Rey 4WD Brushless RTR model, whether the Polaris or Fox variant, understanding your chassis components is crucial to maintaining peak performance. The front upper arm is fundamental to your RC car's suspension geometry, controlling wheel alignment and ride characteristics. Combined with the ESC mounting provision in this single component, you gain an integrated solution that simplifies assembly and reduces potential points of failure. This is the genuine Losi OEM part trusted by RC enthusiasts across the UK and beyond.

RC car ownership in the UK has never been more popular, and having access to authentic spare parts from authorised retailers is essential. The Losi brand represents decades of quality engineering and racing heritage. This front upper arm and shock mount assembly reflects that commitment to excellence, offering durability and precise engineering that aftermarket alternatives simply cannot match. Whether you are upgrading after a crash, performing preventative maintenance, or customising your RZR Rey for competition, this component is fundamental to achieving the handling and performance you demand from your 4WD brushless RC vehicle.

Key Features

  • Genuine Losi OEM Component — This is the authentic manufacturer part supplied by Losi themselves, guaranteeing perfect compatibility with your RZR Rey 4WD brushless model. Using genuine parts eliminates fitment issues and ensures your RC car performs exactly as engineered by the designers at Losi.
  • Dual-Function Design — The integrated front upper arm mounting and ESC bracket eliminates the need for separate components, streamlining your chassis assembly and reducing complexity. This combined approach improves reliability by reducing the number of connection points that could potentially fail during use.
  • Precision-Engineered Chassis Component — This part directly influences your RZR Rey's suspension geometry and handling characteristics. The front upper arm controls camber angle and wheel travel, critical factors in achieving optimal cornering performance, stability during acceleration, and smooth deceleration across varied terrain found in UK RC racing venues.
  • Complete Shock Mount System — Integrated shock mounting points ensure your suspension components are held in correct alignment, maintaining the suspension travel and response rates that make the RZR Rey such an effective 4WD platform for both racing and recreational driving.
  • Electronic Speed Controller Integration — The ESC mount provision incorporated into this assembly means you have a dedicated, secure location for your brushless speed controller, protecting it from damage during high-speed runs and rough terrain.
  • Compatible with Multiple RZR Rey Variants — Whether you operate the Polaris-themed variant or the Fox-branded version of the Losi 1/10 RZR Rey 4WD Brushless RTR, this component provides perfect compatibility and fitment.

Technical Performance

The front upper arm/shock mount and ESC mount assembly represents critical chassis engineering for your 1/10 scale Losi RZR Rey 4WD brushless RC vehicle. As a suspension-related component, this part directly affects how your vehicle behaves during acceleration, cornering, and braking. The upper arm geometry determines the suspension's anti-squat and anti-dive characteristics, which are essential for maintaining consistent handling across different driving conditions. The shock mount points must be precisely positioned to maintain correct spring preload and suspension travel, ensuring your brushless-powered RZR Rey delivers predictable handling lap after lap. The integrated ESC mounting solution provides a secure platform for your electronic speed controller, protecting it from vibration, impacts, and the elements. Build quality is paramount in genuine Losi components; this part is manufactured to exacting specifications using appropriate materials that can withstand the forces generated by a powerful brushless motor system. The engineering ensures longevity, reliability, and performance consistency, whether you are pushing your RZR Rey to its limits in competitive racing scenarios or enjoying weekend recreational bashing across UK terrain.

What's in the Box

  • 1x Front Upper Arm/Shock Mount and ESC Mount assembly for Losi RZR Rey

Frequently Asked Questions

  • What models is this Losi front upper arm compatible with? — This component is specifically engineered for the Losi 1/10 RZR Rey 4WD Brushless RTR platform. It is compatible with both the Polaris variant (model C-LOS03029T1) and the Fox variant (model C-LOS03029T2) of the RZR Rey.
  • Do I need professional installation to fit this component? — As a chassis component requiring suspension geometry knowledge, installation is best performed by experienced RC enthusiasts or professionals. Incorrect installation could affect your vehicle's handling and performance. If you are new to RC car maintenance, we recommend consulting detailed build guides or seeking assistance from experienced RC technicians.
  • Why is the genuine Losi part better than aftermarket alternatives? — Genuine Losi OEM parts are engineered specifically for your RZR Rey's suspension geometry and performance characteristics. They are manufactured to the exact specifications used during vehicle design, ensuring perfect fitment, correct alignment, and optimal handling. Aftermarket alternatives may introduce fitment issues or alter your vehicle's intended handling characteristics.
  • Is this a front upper arm or upper suspension arm? — In RC vehicle terminology, the front upper arm (also called the upper suspension arm or upper A-arm) is the suspension component that connects the wheel hub or steering knuckle to the chassis frame. It controls the wheel's camber angle and vertical movement during suspension travel.
  • What tools do I need to install this component? — Installation typically requires RC hobby tools including hex drivers, screwdrivers, and potentially bearing pullers or ball stud removal tools, depending on your specific installation approach. Consult official Losi documentation or support resources for detailed tool requirements.
  • Can this part improve my RZR Rey's performance? — If your original component is damaged or worn, replacing it with this genuine Losi part will restore your vehicle to factory specifications and performance levels. It is a replacement component rather than an upgrade that enhances performance beyond original design parameters.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the LOS Front Upper Arm/Shock Mount and ESC Mount: RZR Rey Z-LOS231099 today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.

We want to make sure your delivery goes smoothly, so here are some important details about our service:

  • For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
  • Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
  • Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
  • If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
  • We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
  • As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
  • If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
  • For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.