Overview
The ARRMA Assembled OLC 50T 0.8Mod Over Load Couple Transmission Pro is a precision-engineered transmission protector designed for serious RC enthusiasts looking to safeguard their drivetrain while maintaining maximum performance. This pre-assembled component is purpose-built to integrate seamlessly into compatible ARRMA 1/8 scale RC vehicles, delivering reliable torque limiting protection that prevents catastrophic transmission damage during extreme driving conditions. Whether you're a competitive RC racer or a dedicated weekend basher, this transmission protector represents a smart investment in extending the lifespan of your RC car's most critical drivetrain components.
Supplied fully assembled and ready to install, the OLC transmission protector eliminates the need for time-consuming setup and configuration, making it an ideal upgrade for those who want to spend more time driving their RC truck and less time in the workshop. This component is particularly valuable for drivers who push their RC vehicles to the limit, as the innovative Over Load Coupling design intelligently manages power delivery to protect transmission components whilst still applying maximum drive to the differentials. If you're searching for a reliable RC transmission upgrade in the UK market, this ARRMA component offers genuine manufacturer quality and proven performance.
The ARRMA brand has established itself as a leading manufacturer of high-performance RC vehicles and components, trusted by RC enthusiasts across the UK and beyond. This transmission protector reflects ARRMA's commitment to engineering excellence, combining durable materials with intelligent design to deliver a component that performs as hard as you drive.
Key Features
- Pre-Assembled and Ready to Install — This transmission protector arrives fully assembled and precisely set, eliminating the need for complex construction or adjustment before installation into your RC vehicle, saving you valuable setup time.
- Precision Aluminium Hub — The precision-manufactured aluminium hub takes drive to the rear transmission with exceptional accuracy, ensuring smooth power transfer and minimising drivetrain losses during acceleration and cornering.
- Durable Metal 50 Tooth Spur Gear — The metal construction of this 50-tooth, 0.8 module spur gear provides reliable power handling capability, designed to withstand the extreme forces generated during high-performance RC driving and aggressive manoeuvres.
- Red Anodised Aluminium Output Shaft — Built around a strong red anodised aluminium output shaft, this component combines visual appeal with practical durability, resisting corrosion and maintaining structural integrity through repeated high-torque cycles.
- Intelligent Torque Limiting Design — The patented Over Load Coupling mechanism protects your transmission from sudden shock loads and extreme torque spikes whilst simultaneously applying maximum drive to the differentials, allowing your RC vehicle to accelerate hard without risking internal damage.
Technical Performance
The ARRMA OLC 50T transmission protector represents the pinnacle of drivetrain protection engineering for 1/8 scale RC vehicles. The 50-tooth, 0.8 module metal spur gear is dimensioned and manufactured to exacting tolerances, ensuring perfect mesh with compatible components whilst delivering exceptional durability under extreme driving conditions. The precision-engineered aluminium hub and red anodised output shaft combination provides a lightweight yet robust solution that minimises rotational inertia whilst maximising strength. The patented Over Load Coupling technology (patent application pending) implements an intelligent slip mechanism that activates under extreme torque loads, protecting internal transmission components from sudden shock loads that could otherwise result in stripped gears or fractured shafts. This design philosophy allows RC drivers to maintain full acceleration throughout normal operation whilst gaining the safety margin needed for aggressive driving, jumps, and high-speed impacts. The assembled construction means every component is precisely aligned and calibrated before shipment, ensuring optimal performance the moment you install it into your RC car.
What's in the Box
- 1x Assembled OLC Transmission Protector with 50 Tooth 0.8MOD Metal Spur Gear
Frequently Asked Questions
- What vehicles is the ARRMA OLC 50T transmission protector compatible with? — This transmission protector is designed for the ARRMA 1/8 INFRACTION 223S DSC 4X4 RTR Street Bash truck, including all colour variants (Red/Black, Blue/Red, and Teal/Pink versions).
- Why would I need a transmission protector for my RC vehicle? — Transmission protectors like this OLC unit are essential upgrades for drivers who regularly perform jumps, high-speed impacts, or aggressive acceleration. The torque limiting design prevents shock loads from damaging internal transmission components, extending the lifespan of your RC vehicle's drivetrain significantly.
- Is the OLC transmission protector difficult to install? — No, this component arrives completely assembled and pre-set, requiring no configuration or calibration before installation. Simply follow your vehicle's manual for drivetrain component installation, and you'll be ready to drive within minutes.
- What is the Over Load Coupling technology? — The OLC mechanism is a patented slip clutch system that protects your transmission by allowing controlled slippage under extreme torque loads. When you experience a sudden impact or shock load that would normally break internal transmission components, the OLC slips slightly to absorb that energy, protecting your vehicle whilst maintaining maximum acceleration during normal driving.
- Will this transmission protector fit my ARRMA vehicle? — This component is specifically designed for the ARRMA 1/8 INFRACTION 223S DSC 4X4 RTR Street Bash truck. Always verify fitment with your specific model before purchasing, as transmission components vary significantly between different RC vehicle platforms.
- What material is the spur gear made from? — The 50-tooth spur gear is manufactured from metal (not plastic), providing superior durability and power handling capability compared to composite alternatives, making it ideal for high-performance RC driving.
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 ARRMA Assembled OLC 50T 0.8Mod - Over Load Couple Transmission Pro Z-ARA-2647 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.
