RC4WD Leaf Under Mounts Yota 2 K44 Axles Suspension Z-S2135

Overview

The RC4WD Leaf Under Mounts for Yota 2 / K44 Axles (Z-S2135) represent a premium upgrade for serious RC scale crawlers and trail runners across the UK. These precision-engineered suspension components are designed to enhance the visual stance of your scale RC truck whilst maintaining the authentic, detailed aesthetics that scale enthusiasts demand. Whether you're building a competition-grade RC crawler or upgrading your existing Yota II or K44-equipped rig, these leaf under mounts deliver the perfect blend of form and function that discerning RC hobbyists expect from RC4WD's renowned engineering.

If you're running an RC4WD Trail Finder 2, Gelande 2, or any build featuring Yota II or K44 Ultimate Scale Cast Axles, this is an essential upgrade for achieving proper scale proportions and lowering your truck's centre of gravity. The mounting system is engineered to work seamlessly with leading RC transmissions and shock absorber systems, making it an ideal choice for both experienced competitors and serious weekend bashers in the UK RC community. These mounts are manufactured to exacting standards using aerospace-grade materials, ensuring durability and reliability through countless hours of off-road exploration.

RC scale crawlers demand attention to detail, and the RC4WD Leaf Under Mounts exemplify this philosophy. By lowering your truck by 10-12mm, these mounts not only improve your vehicle's stance but also optimise weight distribution and suspension geometry for enhanced trail performance. This is the type of upgrade that separates truly dialled-in rigs from basic builds, making it an essential component for anyone serious about getting the best from their ready to run RC or custom-built crawler.

Key Features

• CNC Machined Billet Aluminium Construction — Each mount is precision-machined from solid billet aluminium, ensuring absolute consistency and durability that will survive countless crawling sessions without deformation or failure, which is critical for maintaining accurate wheel alignment and suspension geometry.
• Black Anodised Finish — The hard-anodised coating provides superior corrosion resistance and a professional appearance that looks factory-fitted on your scale crawler, whilst protecting the aluminium from oxidation even when exposed to wet conditions during off-road trails.
• 10-12mm Height Reduction — These mounts lower your truck's chassis by 10-12mm, dramatically improving scale proportions and creating the authentic stance that scale enthusiasts demand, whilst also lowering your vehicle's centre of gravity for improved stability and handling characteristics.
• Universal Leaf Mount Design — The intelligent bracket design accommodates both Yota II and K44 axle systems, with specific thickness options for front and rear applications, allowing you to upgrade multiple vehicles or complete both axles on a single truck with confidence.
• M3 Hardware Included — Eight M3 x 16mm steel button head cap screws are supplied with every set, ensuring you have all necessary fasteners for secure, permanent installation without needing to source additional components.
• Lightweight Performance — At just 0.56oz (16.0g) total weight, these mounts add negligible mass to your RC crawler whilst delivering significant handling improvements, which is especially important when tuning suspension geometry for competition-level trail crawling.
• Compatible with Premium Shock Systems — These mounts are engineered to work seamlessly with RC4WD Bilstein SZ Series 50mm Scale Shock Absorbers and integrate with both Gelande 2 and Trail Finder 2 shock hoops, allowing you to build a fully optimised suspension system.

Technical Performance

The RC4WD Leaf Under Mounts represent premium engineering delivered through precision CNC machining and aerospace-grade aluminium materials. These components are not simply bolt-on cosmetic upgrades; they fundamentally alter your crawler's suspension geometry and weight distribution for measurable performance gains. By reducing ride height by 10-12mm, the mounts lower your truck's centre of gravity, improving stability during technical crawling and reducing the likelihood of roll-overs on aggressive terrain. The billet aluminium construction ensures zero flex or deflection under load, maintaining precise wheel alignment even after hundreds of hours of use. The black anodised finish provides a durable protective layer that resists corrosion from mud, water, and salt exposure — essential for UK trail crawlers exposed to varied environmental conditions. Installation specifications are straightforward: K44 users employ the thicker brackets on both front and rear axles, whilst Yota II owners use the thinner bracket at the front and the thicker bracket at the rear. Compatibility is extensive but requires careful transmission selection — these mounts install ideally with RC4WD's R4 Single Speed transmission (Z-U0031) or R4 with O/U Drive Transfer Case (Z-U0040). Users running R3 Scale 2 Speed (Z-U0025) or R3 Single Speed (Z-U0028) transmissions may experience driveshaft rubbing and should verify clearances before installation. When paired with RC4WD's 50mm Bilstein scale shocks, the system delivers balanced suspension travel and authentic scale proportions. Taller shock hoops may require 60-70mm shocks to maintain proper geometry, so comprehensive system planning is recommended before purchase.

What's in the Box

• 1x Leaf Under Mounts for Yota 2 / K44 Axles (Z-S2135)
• 8x M3 x 16mm Steel Button Head Cap Screws

Frequently Asked Questions

• Will these leaf under mounts fit my RC4WD crawler? — These mounts are specifically designed for Yota II and K44 Ultimate Scale Cast Axles. They are compatible with the Yota II Ultimate Scale Cast Axle (Front) (Z-A0080), Yota II Ultimate Scale Cast Axle (Rear) (Z-A0081), K44 Ultimate Scale Cast Front Axle (Z-A0101), and K44 Ultimate Scale Cast Rear Axle (Z-A0096). Critically, they will not fit Yota I axles, so verify your axle generation before purchasing. If you're unsure about your current setup, we recommend contacting our team at RC Model Shop on 01543 577278 for compatibility advice.
• How much will these mounts lower my truck? — The leaf under mounts reduce your vehicle's ride height by approximately 10-12mm, which delivers a noticeable improvement in scale proportions and visual stance whilst simultaneously lowering your crawler's centre of gravity for enhanced stability during technical trail sections.
• Do I need different mounts for K44 and Yota II axles? — The same mount set includes components for both Yota II and K44 platforms, but the installation approach differs. For K44 axles, you'll use the thicker brackets on both front and rear. For Yota II builds, use the thinner bracket at the front and the thicker bracket at the rear. This design flexibility allows a single purchase to service multiple build configurations.
• What transmission works best with these mounts? — RC4WD recommends pairing these mounts with the RC4WD TCI Heavy Duty R4 Single Speed Transmission (Z-U0031) or the R4 Single Speed with O/U Drive Transfer Case (Z-U0040) for optimal clearances and performance. If you're running an R3 Scale 2 Speed (Z-U0025) or R3 Single Speed (Z-U0028) transmission, driveshaft rubbing may occur, requiring modification. Our experienced team can advise on solutions if you're committed to running alternative transmissions.
• Are these mounts suitable for UK trail crawlers in wet conditions? — Absolutely. The hard-anodised aluminium finish provides excellent corrosion resistance, making these mounts ideal for UK climates where trails are frequently muddy and exposed to water and salt. The durable black coating protects the underlying aluminium and maintains the professional appearance of your rig throughout the year.
• Will installation interfere with my steering or driveline? — Potential interference with steering, driveline, and axle pumpkin components may occur after installation, and modification may be required depending on your specific build configuration. We strongly recommend consulting with our knowledgeable team before installation, particularly if you're running non-standard driveline components or extreme steering angles.
• What shock absorbers should I pair with these mounts? — RC4WD recommends their Bilstein SZ Series 50mm Scale Shock Absorbers (Z-D0081) for front and rear applications. These mounts work with either Front Shock Hoops for Gelande 2 Chassis (Z-S0798) or Shock Hoops for Trail Finder 2 Chassis (Z-S0597). Taller shock hoops should be paired with 60-70mm shocks, and suspension travel may be limited, so careful system planning is essential.
• How much do these mounts weigh? — At just 0.56oz (16.0g) total weight, these mounts add minimal mass to your crawler, ensuring that the suspension geometry improvements are not compromised by unnecessary weight gain — critical for maintaining responsiveness and handling characteristics in competition-level crawling.

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 RC4WD LEAF UNDER MOUNTS FOR YOTA 2 / K44 AXLES Z-S2135 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.