The Serpent ERYX 411-4.1 is the next development stage for the 411 platform. Featuring an ultra low centre of gravity, optimized weight distribution, high performance geometry and top quality materials throughout, the ERYX is your car for personal best times !

Serpent is offering this ERYX 411 4.1 version car as alternative to the Project 4X car, for drivers that are looking for a more “regular” looking car and with a lower price tag. The ERYX 4.1 is still a high end racing car with lots of tuning options and is suitable for all levels of racing.

  • 7075 T6 motormount, centrally mounted, allowing sufficient flex
  • upgraded differentials with new internal gears for smoother action
  • big bore shocks with pre-oiled x-rings
  • hard compound moulded suspension parts
  • 2mm carbon fibre chassis and carbon flex type top deck
  • Centrally mounted servo-mount, lowest cg
  • low friction belts and super true low friction pullies

General Features

Steering assembly

The Serpent ERYX utilises a centrally mounted ball raced dual pivot steering assembly-rack in aluminium. Offset steering linkage for correct steering geometry and Ackermann. The steering assembly allows for very precise steering and great control. The Ackermann is adjustable by using shims. The system pivots on wider low steering-shafts, creating a more direct steering feel. The bearing in the levers are pressed inside for a play-free assembly

Unique servo-holder

The unique and innovative carbon fibre servo holder has zero influence on tweak, as it’s floating above the chassis and mounted directly to the steering-assembly in the centre of the car. This also keeps the weight lower than any other design.

CVD's spring-steel

This car is supplied with a complete set of 4 high quality hard coated spring-steel CVD shafts, which are a highly consistent, efficient and durable way to transfer all the power the surface.

Suspension brackets

For adjusting the cars toe-in and track-width, the ERYX is equipped with separately mounted suspension brackets on both the front and rear of the car. Each bracket features an easily recognisable number that corresponds to the setting being used and due to the way they are mounted allows the user to easily and accurately adjust their cars settings. The brackets are designed such way that they can be used in any position in the car. The inner brackets FR and RR are now split type, to allow for more flex. The split suspension blocks are mirror type, so you can use them either left or right and obtain a different desired setting. This way less different blocks are needed for a good variety of settings. Standard ones: 3.5/ 0.5 split blocks in the rear, 2.0/ 0.5 in the front

Chassis plate and top deck

The very narrow chassis plate has been machined from 2.0mm carbon. All holes in the base of the chassis have been countersunk. The chassis further features extra holes to mount weights and additional stiffeners. All holes are as close to the centreline of the chassis, to create even flex. Flex type 2mm top deck to allow for optimal flex. Using all or less screws to fasten it may influence flex even more.

Belt drive System

The ERYX features a 2-belt configuration with a long front and a short rear Kevlar reinforced low friction belt that combined with precision moulded gears makes for a super smooth and free drive train.

Shock towers

The Serpent ERYX features 2.5mm thick carbon fibre shock towers on the front and rear of the car. Each tower sports many holes for adjustment of the shock absorber angle while the rear tower also acts as the mount for the rear body posts and the front tower accommodates a 3rd front body post.


The car comes supplied with a front spool which has been made from hard anodised aluminium and is used with blades to increase lifespan. The shape has been optimised to ensure that the part is as light as possible without compromising strength.

Anti-roll bars

The ERYX is supplied with coded anti-roll bars front and rear with a composite centring bracket. The anti-roll bars are available in a number of thicknesses and are connected to the wishbones using short adjustable track rods, connected with a pivot ball to the lower front wishbone, and with a ball directly to the rear lower wishbone. The anti-roll bars run in small tapered nylon inserts, and the anti-roll bar is centred through one captured centre bushing.

C-hubs front

A standard system on most high-end touring cars, the ERYX features a front C-hub system in hard composite. The car comes standard with a 4-degree caster block but is also supplied with a pair of 2 and 6-degree blocks. The C-hub is large enough to take out the drive-shaft assembly without dis-assembling the c-hubs.

Front suspension

Similar to the rear suspension in configuration, the front suspension sports a hard composite wishbone while the upper camber adjustment is handled using an aluminium track rod which is strong, lightweight and can easily handle impacts.

Rear section with harder arms

The rear end of the ERYX features stronger hard lower wishbones. The lower wishbones can be used on both the left and right sides, minimizing the number of spare parts needed to bring to the track. The rear hard upright features a pivot pin mounting point on the bottom and 2 upper camber link mounting holes for fine-tuning camber rise.

Central section

The machined aluminium motor bracket is superlight and super low and suits both stock and mod gearing well. The small front aluminum bracket can be fitted with an aluminum bushing with long screw to connect to the top-deck. It can also be removed to create extra flex. The separate machined brackets hold the light aluminium middle shaft/ 19T pulley.

Big bore shocks

The new Serpent big bore on road shock absorbers lower the centre of gravity even further. They come with threaded coated shock-bodies, pre-load shock nuts with O-ring, harder membranes , super smooth and strong shock-rods with clip to hold the piston, perfectly machined pistons ( 1,2,3 and 4 holes in kit) in a new yellow material , top-level x-ring /bushing package, light spring-cups, strong ball joints, pre-oiled x-rings. High quality race-springs included with colour coding, grinded flat for even load.


The front bumper has been made from a high impact absorbing foam material and is shaped to protect the entire front end of the car in the event of a crash. The bumper is held in place with a large top-plate.


Ackermann: two positions on the steering blocks, and the steering plate with shims
Camber: adjustable front and rear
Toe-in: adjustable front and rear
Front Caster: 4° static (0°, 2° or 6° as optional)
Down stops: adjustable front and rear
Front anti-dive: adjustable range 0° to 3°
Rear anti-squat: adjustable range 0° to 3°
Anti-roll bars: 1.4mm front and 1.4mm rear


The ERYX kit comes without body/wheels/tyres/spur gear and electronics. It’s packed in a very small strong box with nice graphics, which can be re-used as parts or tyre box later on. The box contains bags which are numbered in same sequence as steps in the manual.

Manual / decal / set-up sheet

To allow you to build your car with the greatest of ease, Serpent supplies a full colour PDF online instruction manual and integrated reference guide section that contains all the exploded views and latest options. Serpent logo decal sheets and set-up sheet are included. All Manuals are available to download as a PDF in the Download section of this product page.

Design and Concepts:
David Ehrbar - Germany



Serpent as a company started in 1980, and has over 30 years experience in developing, testing, designing and manufacturing radio controlled modelcars and is one of the longest existing rc brands in the World with 10 World Championship titles and countless European, American, Asian and national titles won by Serpent drivers !