RPM Lower Spring Cups Blue Quick Adjust Spring Clips RC Suspension RPM73155

Overview

The RPM Losi & Traxxas Spring Cups Blue RPM73155 are precision-engineered suspension tune-up components designed to enhance the performance and adjustability of your RC short course truck. These lower spring cups feature quick adjust spring clips, making them an essential upgrade for drivers who want to fine-tune their suspension settings without the hassle of complicated adjustments. Whether you're a weekend basher or a competitive RC racer in the UK, these blue spring cups offer the flexibility needed to optimise your vehicle's handling characteristics across different terrain types.

Built to exacting RPM standards, these spring cups are engineered for durability and precision fit, ensuring reliable performance lap after lap. The quick adjust design means you can modify your spring rates on the fly, allowing you to adapt to changing track conditions or personal driving preferences. This makes the RPM73155 an invaluable addition to your RC car spares collection, particularly if you run one of the compatible Traxxas Slash models or other supported vehicles.

As a UK RC enthusiast, you'll appreciate the compatibility offered here. These spring cups work seamlessly with a range of Traxxas 1/10 4WD short course trucks, making them versatile enough for most serious bashers and racers. The bright blue colour provides excellent visibility during assembly and maintenance, and the quality construction ensures they'll withstand the demands of regular use on any RC track or off-road surface.

Key Features

• Quick Adjust Spring Clips — The integrated quick adjust mechanism allows you to change your spring preload and rate settings quickly and easily, without requiring tools or partial disassembly of your vehicle, saving time between runs and enabling rapid suspension tuning for different track conditions.
• Lower Spring Cups Design — These components form part of your vehicle's lower suspension assembly, working in conjunction with your shocks and springs to control ride height, stiffness and overall handling characteristics across bumps, jumps and high-speed turns.
• RPM Engineering Quality — Manufactured by RPM, a trusted name in RC suspension components, these spring cups are built to precise tolerances using quality materials that resist wear and damage from regular use and impacts.
• Bright Blue Colour — The distinctive blue finish makes these components easy to locate during assembly, disassembly and maintenance, and adds a professional appearance to your suspension setup.
• Wide Vehicle Compatibility — These spring cups are suitable for Traxxas Slash VXL models in multiple colours including orange, blue, green and red variants, as well as the Traxxas Slash Ultimate 4x4 VXL, making them a practical choice for owners of these popular 1/10 scale short course trucks.
• Tune-Up Component — As a dedicated suspension tune-up option, these spring cups allow intermediate and advanced drivers to customise their vehicle's handling without replacing entire suspension assemblies, providing a cost-effective path to performance improvements.

Technical Performance

The RPM Lower Spring Cups are precision suspension components engineered to deliver consistent performance in competitive and recreational RC short course truck environments. As part of the lower suspension assembly, these cups play a critical role in translating your chosen spring rates into actual handling characteristics. The quick adjust spring clips mechanism is the standout feature here—it enables drivers to modify suspension stiffness settings without disassembling the shock tower or removing the vehicle from the track. This engineering approach reflects modern RC development practices where track-side adjustability has become essential for competitive performance. The blue anodised finish provides both aesthetic appeal and corrosion resistance, whilst the construction quality ensures long-term durability through repeated compression cycles, impacts and exposure to dirt and moisture. For 1/10 scale 4WD short course trucks like the Traxxas Slash VXL and Slash Ultimate 4x4 VXL, these spring cups represent a straightforward upgrade path that allows drivers to fine-tune their suspension geometry and spring preload independently of other modifications, making them particularly valuable for those seeking to extract maximum performance from their ready to run RC short course trucks.

What's in the Box

• RPM Lower Spring Cups (blue)
• Quick adjust spring clips

Frequently Asked Questions

• What RC vehicles are these spring cups compatible with? — These RPM73155 lower spring cups are designed for Traxxas Slash VXL 1/10 4x4 RTR short course trucks in blue, green, orange and red colour options, plus the Traxxas Slash Ultimate 4x4 VXL 1/10 4WD brushless short course truck in orange. They are also suitable for Losi Maxx models, making them a versatile choice if you own multiple compatible vehicles.
• Why would I need replacement spring cups for my RC short course truck? — Spring cups can wear, crack or break through normal use, aggressive driving or impacts with obstacles. Upgrading to quality RPM spring cups also allows you to modify your suspension setup independently, adjust spring preload, and experiment with different spring rates to optimise handling for specific tracks or driving styles.
• What is the quick adjust spring clips feature? — The quick adjust mechanism allows you to change your spring preload settings without removing the shocks from your vehicle or using tools. This means you can fine-tune your suspension between heats during competition, or adapt your setup when conditions change, without investing significant time in vehicle teardown and reassembly.
• Are these suitable for beginners? — These are intermediate to advanced-level tune-up components intended for drivers who already understand suspension fundamentals and want to customise their vehicle's handling. Beginners can certainly use them as replacement parts, but the tuning potential is best appreciated by those with some RC driving experience.
• How do I install these spring cups? — Installation details should be confirmed through your vehicle's manual or RPM's documentation, as the specific process depends on your Traxxas Slash or Losi Maxx model. Generally, lower spring cups are accessed from underneath the vehicle and require careful alignment with shock shafts and spring seats.
• What materials are these spring cups made from? — RPM is renowned for using durable engineering plastics and anodised aluminium in their suspension components. The blue anodised finish provides both visual appeal and corrosion resistance, ensuring longevity through exposure to dirt, moisture and salt water if used in coastal areas around the UK.

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 RPM Losi & Traxxas Spring Cups Blue RPM73155 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.