Traxxas Trim Adjustment Bracket Inner Outer with Lever Fasteners TRX1531

Overview

The Traxxas Trim Adjustment Bracket (TRX1531) is an essential tuning component designed for RC enthusiasts who demand precise control over their vehicle's throttle and brake response. This genuine Traxxas spare part is engineered to help you achieve factory-perfect throttle and brake linkage settings, ensuring your RC car UK model performs at its absolute best. Whether you're a competitive racer fine-tuning your setup or a weekend basher looking to optimise your vehicle's handling characteristics, this adjustment bracket system provides the mechanical precision needed for professional-grade throttle control.

Proper throttle and brake linkage adjustment is critical to RC performance. Many hobbyists make the mistake of adjusting throttle trim on the transmitter itself rather than using the correct mechanical linkage components, which can lead to engine stalling during braking and compromised brake engagement. The Traxxas Trim Adjustment Bracket system solves this problem by providing the correct mechanical interface between your servo and throttle linkage, allowing you to achieve the ideal neutral point and ensure smooth, progressive throttle and brake response throughout the full range of travel.

This complete trim adjustment system is compatible with a range of Traxxas vehicles, particularly the Traxxas Blast 1/10 High Performance Race Boat in both orange and green colour options. If you're serious about getting the most from your ready to run RC or are rebuilding a vehicle after wear and tear, this OEM Traxxas component is the correct choice for achieving factory-specification throttle linkage adjustment.

Key Features

• Complete Trim Adjustment System — This kit includes both inner and outer trim adjustment brackets, giving you a complete mechanical linkage solution that allows precise control over the neutral point of your throttle and brake servo without relying on transmitter trim adjustments alone.
• Trim Adjustment Lever — The dedicated trim lever provides mechanical advantage and precise control when fine-tuning your throttle and brake linkage, making it far easier to achieve micro-adjustments compared to using the transmitter trim function.
• Multiple Fastening Options — The kit includes 3x16mm shoulder screws and 4x21mm double shoulder screws, along with 2.6x10mm self-tapping screws (4 pieces), giving you the correct fastening hardware for secure, wobble-free installation and adjustment without damage to critical components.
• Precision Washers Included — Convex and concave trim lever washers are provided to ensure smooth lever operation and eliminate binding, allowing for smooth, consistent adjustment without flat spots or resistance during tuning.
• Brass Washers for Durability — High-quality brass washers protect your components from corrosion and ensure long-term durability, particularly important in wet or humid RC track conditions common across the UK.
• Genuine Traxxas OEM Component — This is an authentic Traxxas factory spare part, ensuring perfect compatibility and fit with your vehicle, with engineering that matches original factory specifications exactly.
• Professional Tuning Solution — Rather than struggling with transmitter-only adjustments that can cause engine stalling or brake failure, this mechanical linkage system allows you to set the carburetor to proper idle position and ensure brake engagement happens at the correct throttle position.

Technical Performance

The Traxxas Trim Adjustment Bracket system represents professional-grade throttle linkage engineering designed to solve real-world tuning challenges. The system works by providing mechanical adjustment of the neutral point where your servo sits when the throttle trigger is in the centre position. Unlike simple transmitter trim adjustments—which many hobbyists incorrectly use to raise idle speed, a practice that leads to engine stalling when brakes are applied and complete brake failure in extreme cases—this mechanical system allows you to properly centre the servo and then adjust the linkage rods to ensure the carburetor sits at true idle when the servo is in its neutral position. The dual-bracket design (inner and outer) ensures precise alignment and eliminates side-to-side play that would compromise throttle response consistency. The inclusion of multiple shoulder screws in different sizes (3x16mm and 4x21mm) provides the correct fastening interface for different mounting points on your vehicle's throttle linkage. The self-tapping screws ensure secure attachment without stripping threads. The convex and concave washers work together to create a smooth, frictionless pivot point for the trim lever, allowing single-degree adjustments. Brass washers provide corrosion resistance in all UK weather conditions, from damp British weather to saltwater environments if you're running a race boat like the compatible Traxxas Blast. This is precision engineering that directly impacts throttle response quality, brake engagement reliability, and overall vehicle control—critical factors whether you're competing in RC racing or enjoying high-speed bashing sessions.

What's in the Box

• Trim adjustment bracket (inner)
• Trim adjustment bracket (outer)
• Trim adjustment lever
• 3x16mm shoulder screws
• 2.6x10mm self-tapping screws (4 pieces)
• Convex trim lever washers
• Concave trim lever washers
• 4x21mm double shoulder screws
• Brass washers
• Mounting nuts

Frequently Asked Questions

• Why should I use a mechanical trim adjustment bracket instead of just adjusting transmitter trim? — Many hobbyists make the mistake of adjusting throttle trim on the transmitter to raise idle speed instead of properly adjusting the throttle linkage mechanically. This causes two serious problems: the engine may stall every time you apply the brakes, and the brakes may not engage at all, which can lead to loss of control. The Traxxas Trim Adjustment Bracket allows you to properly centre your servo and adjust the linkage so the carburetor sits at true idle when the servo is at neutral, ensuring the engine remains stable during braking and brake engagement is predictable and reliable.
• Is this suitable for beginners? — This is an intermediate-to-advanced tuning component. If you're just starting with RC cars UK, you may not need this immediately, but it becomes essential once you want to fine-tune throttle response or if you're replacing a worn linkage system. The Traxxas manual for your specific vehicle will provide detailed instructions on proper installation and adjustment procedures.
• What vehicles is this compatible with? — This trim adjustment bracket system is confirmed compatible with the Traxxas Blast 1/10 High Performance Race Boat in both orange (TRX38104-8-ORNG) and green (TRX38104-8-GRN) colour options. However, Traxxas vehicles often use similar linkage systems across multiple models, so check your specific vehicle's manual or contact our team to confirm compatibility with your model.
• How do I know if I need to replace my trim adjustment bracket? — Signs that you need a replacement include: the trim adjustment lever becoming stiff or resistant to movement, visible cracks or damage to either bracket, excessive free play or wobbling in the throttle linkage, or inability to achieve a stable idle speed no matter how much you adjust the linkage. Worn components can prevent you from achieving proper throttle and brake calibration.
• Do I need professional installation? — The Traxxas manual for your vehicle provides step-by-step instructions for installation and adjustment. The process involves loosening adjustment screws, centering the servo with fresh batteries and your transmitter on, and then fine-tuning the linkage position. While not difficult, it requires patience and attention to detail. If you're unsure, our experienced RC specialists at RC Model Shop are happy to assist.
• Will this work with my transmitter's throttle settings? — Yes. Traxxas transmitters typically offer a throttle neutral adjustment (50/50 or 70/30 split between forward and brake travel). This mechanical trim bracket works alongside your transmitter settings. Traxxas recommends the 50/50 position for nitro-powered vehicles and electric models with mechanical speed control (MSC) or forward and reverse electronic speed control (ESC). The 70/30 setting is exclusively for electric vehicles with forward and brake only ESC. Once you've set your transmitter's throttle neutral position correctly, you then use this mechanical bracket to fine-tune the servo's centre point and linkage position.

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 Traxxas Trim Adjustment Bracket (Inner) / Trim Adjustment Bracket (Outer) / Trim Adjustment Lever TRX1531 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.