Serpent just announced another step in the evolution of the Cobra 811 1/8 nitro buggy. The Serpent Cobra 811 2.1 features an all new longer chassis, longer aluminum rear brace, longer rear central drive shaft, hard coated shock caps and new aluminum 14 degree caster blocks. The kit includes the car, clear body with wing and a set of racing wheels.
4mm longer hard anodized chassis plate in 3mm 7075 T6 aluminum , with machined pockets to create flex make lighter. Kick-up angle on front for stable landings. Countersunk holes. Slots to locate the front and rear suspension mounts precisely. Angled sides to increase stiffness. Laser engraved Cobra logo.
Aligned with chassis kick up for precise landings and to protect front suspension holder and anti-roll bar.
Aluminum longer rear stiffener, and composite front stiffener, to give extra stiffness, but still allow some flex as needed.
Central radio / servo mount
Composite radio box which offers good space for the steering and throttle -servo, the receiver and rx battery. The whole assembly including linkages can be taken off easily and fast in one go, when cleaning the car, or doing maintenance. One extra post is added close to the servo for stability.
Servo arms and linkages
The servo arms have a splined insert to have the right fit per brand. The linkages run very clean and tight and are easy to access to modify settings.
Beautifully machined 7065 T6 suspension brackets in anodized, laser angraved. Precision fit for the nylon roll center inserts and pivot balls / pins.
Steering blocks assembly
Composite steering blocks combined with 14 degree black anodized aluminum C-hubs for precise steering. Composite 10 and 12 degree c-hubs are also included. Spring steel wheel-axles with large size bearings and larger inner with precision threaded aluminum wheel-hubs with offset. Flanged and serrated wheel nuts.
Durable over sized lower suspension arms in strong composite nylon. On the lower side the special shaped down stops screws are mounted. The lower shock-mounting pins are secured with a small grub screw from the bottom.
Front anti-roll bar
The ball raced front anti-roll bar system, consist of a spring steel bend wire, which is guided through the diff-cases and runs in ball raced steel adapters. The wire is linked to the lower suspension arm, with a captured adjustable threaded pivot ball, for very precise and low friction operation and easy tuning.
Shock tower and body mounts front
4.5mm thick carbon shock tower with 5 upper positioning holes for the shocks and and 6 holes for roll-center positions. 1 centrally located adjustable body mount, and 2 forward mounted adjustable body mounts, all with flip-tops.
Angled steering system / servo saver
The bell cranks are angled to reduce the angle of difference between the total caster and steering plane. Therefore you will have less bump steer and a truer steering Ackerman through the entire range of suspension
With the design of the steering bell cranks when changing the Ackerman you will not need to adjust your steering tie rods. You simply will only need to adjust your end points on your radio.
Rear suspension arms
Durable longer over sized lower suspension arms in strong composite nylon. On the lower side the special down stops screws are mounted. The lower shock-mounting pins are secured with a small grub screw from the bottom.
Super light polycarbonate mud guards mount to the new lower suspension arms, and will keep dirt away from your anti-roll bars transmission and wheels.
Rear uprights assembly
Composite uprights with 3 upper roll-center positions. Strong steel track-rods with L/R threading and strong ball joints to pre-set camber. Spring steel wheel-axles with large size bearings and larger inner ones with precision threaded aluminum wheel-hubs with offset. Rubber dust covers in the rear to protect the cvd system and keep the lubrication inside. Flanged and serrated wheel nuts to guarantee that you will not loose a wheel nut in a race.
Composite mud scrapers which mount to the new uprights, and will keep the inside of your wheel cleaner in case of muddy conditions.
Rear anti-roll bar
The ball raced front anti-roll bar system, consist of a spring steel bend wire, which is guided through the diff-cases and runs in ball raced steel adapters. The wire is linked to the lower suspension arm, with a captured adjustable threaded pivot ball, for very precise and low friction operation.
Shock tower rear
4.5mm thick carbon shock tower, integrated into the rear section for extra stiffness, with 5 upper positioning holes for the shocks and 6 holes for roll-center positions.
Wing mount and body mounts rear
Composite rear wing, with strong nylon adjustable rear body mounts on wide body-support bridge located far enough to the rear, to support the bodies in best way.
Captured pivot pins and balls and bolted hinge pins
All spring-steel hinge pins are either captured or bolted in place and made in spring-steel quality. This insures your chances to finish an hour long main event, while battling for the lead. This relieves stress on the hinge pin when adjusting the kick up, or anti squat. Your pin is free to rotate to any angle without binding.
Shock absorbers big-bore 16mm
Hard Teflon coated threaded shock bodies with 4mm shock-rods. Hard anodized aluminum screw on hard anodized shock-tops with Serpent laser engraving. Pre-load adjusters with o-rings inside. Shocks use large diameter membranes and large diameter o-rings and bushings to create a super smooth and leak-proof package. Large diameter pistons are held in place by a nut on the polished shock-rods tops. Open type spring retainer to let dirt out easy. The shock-shafts are protected by rubber boots.
RCM shock springs
Short type color coded shock springs are supplied for the 1st standard set-up Springs are grinded flat top and bottom, and checked individually for tension and length.
Compact gear differentials
Very compact gear differentials with very smooth metal sintered gears, and steel shaft. Perfect sealing case with special gasket and o-rings. Very light and durable outdrive cups in spring-steel. Hardened spring-steel diff-coupler 10T with connector running in 2 oversized bearings . Drive ratio 4.3:1. This drive ratio will provide amazing acceleration combined with the low vehicle weight. It is a sure win, to help improve fuel mileage
Front and rear cvd-sets
Both front and rear captured driveshafts are being used with CVD system. Durable yet light spring steel engraved driveshafts with hard steel pins.
Spring steel transmission parts
The front and rear thin but strong spring steel cardan shafts connect the differentials.
Throttle and brake lever ball cups
Helps provide consistent pulling on the brake lever or carburetor if you do not have the linkage perfectly aligned.
Piston Braking system
Provides more stopping power than you could have ever imagined before with a whole lot less servo power. Also is fully adjustable with 3 types of pistons, solid, O ring type, spring type. In turn you can adjust your bias or braking feel to your liking in more ways than ever before.
Fiber Glass disc brakes
Fiber Glass brake disks with oversized front disk.
Brake plate springs
Will keep the plates spread open to insure unwanted dragging of the brake discs.
Allows you to mix and match shoe materials evenly in pairs. Also provides more surface area contact to insure the engagement. 4 carbon shaped shoes are standard.
Coil exhaust wire and aluminum mount
Helps aid in the front to back movement of the pipe when chassis flex occurs. Helps prevent damage to your exhaust gaskets.
Machined 7075 T6 aluminum engine mount, with side cooling-fins.
Fuel tank 125cc
Splash basin on tank top, self centering fuel tank seal, The fuel tank seal is angled to self guide its way into the bore of the tank. At the same time will provide a seal on the chamfered and flat edges of the seal, providing consistent engine performance from one pit stop to the next. Built in tank splash guard which helps prevent fuel from splashing onto your air filter in the event of an overly excited pit man.
Fuel line and stoppers
Kit included top quality soft silicone fuel line to connect to tank, car and pipe, and also includes small composite stoppers to close yr fuel line when taking out tank, engine and or pipe.
Tank with swiveling nipple and floating clunk
With the swiveling nipple you are able to adjust the angle at which you want you fuel line to travel. At the same time the floating clunk helps when you go upside down. The clunk by gravity will fall back into the fuel, utilizing the flexibility of the silicone fuel tubing.
Oversized Tank with adjustable volume
With the insertion of a simple screw and volume reducer you can have ROAR, IFMAR and any other organizations legal tank volume.
Low profile air filter
Centralized air filter design to minimize cab width and height. Flexible rubber boot combined with strong nylon case to support the foam elements. Excellent dense foam air filter elements to keep your engines clean inside.
Serpent cab forward Avenger body, with film and masking tape is included in the kit.
Low version strong rear white aero rear wing is included for great downforce and straight line stability.
- Width: 305mm
- Wheelbase: 330mm
- Part: 600014