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1/10 Scale Electric Rock Crawler:

Traxxas Summit (2016) - 56076-4 - Radio Controlled Model



History and Info:

   Introduced by Traxxas in 2016, the Summit Rock Crawler - # 56076-4 - came factory assembled RTR, with a choice of Red, Blue, Green or Black pre-painted ProGraphix Bodyshells, a Titan 775 Motor, EVX-2 Forward / Reverse / Brake ESC, TQi 2.4GHz 4-Channel Radio System, Link 5-Channel Micro Receiver and 10 LED Light System. A Battery and Charger to be purchased separately.

   In 2019 Orange and later Purple pre-painted Bodyshell options were added.

   For other Summit versions, Check out our Traxxas Archive.

   The 4WD model is shaft driven, on a molded tub chassis, with sealed limited slip T-Lock (remote locking) differentials, coil spring over oil filled dampers, Dual-CV telescoping axles and a full set of ball bearings.

Traxxas Summit Rock Crawler - 56076-4

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★ Traxxas Summit - 56076-4 Box (2019) ★
Traxxas Summit - 56076-4 Box
★ Traxxas Summit - 56076-4 Box (2019) ★
Traxxas Summit - 56076-4 Box
★ Traxxas Summit - 56076-4 (2016) ★
Traxxas Summit - 5607
★ Traxxas Summit - 56076-4 (2019) ★
Traxxas Summit - 5607
★ Traxxas Summit - 56076-4 ★
Traxxas Summit
★ Traxxas Summit - 56076-4 Chassis ★
Traxxas Summit Chassis
★ Traxxas Summit - 56076-4 Chassis ★
Traxxas Summit Chassis
★ Traxxas Summit - 56076-4 ★
Traxxas Summit
★ Traxxas Summit - 56076-4 ★
Traxxas Summit
★ Traxxas Summit - 56076-4 ★
Traxxas Summit
★ Traxxas Summit - 56076-4 ★
Traxxas Summit
★ Traxxas TQi 2.4Ghz, Titan 775 Motor and EVX-2 ESC ★
Traxxas TQi 2.4Ghz, Titan 775 Motor and EVX-2 ESC

Buying a Used Traxxas Rock Crawler (and What to look for)


   There are essentially three reasons you might want to buy a used Traxxas Rock Crawler; you may be a collector, looking to restore and display it; restore and sell for a profit; or simply restore and race an iconic vintage model. Personally, I used to get a buzz out of restoring an old clapped-out model, installing modern day electrics and maybe a few hop-ups, then showing the gang at our local club, just how competitive those old models could still be.

   Cheap, pre-loved bargain models, parts and spares are always coming up for sale, but once you have made your purchase, the one thing you will always need, is an instruction manual. If not supplied with your purchase, they can often be downloaded from the Traxxas website, or purchased separately on eBay. With an instruction manual, any problems with your model Rock Crawler you may discover, can easily be fixed.

Make a General Visual Inspection

Dampers
   When you receive your used Traxxas model, make a general visual inspection of the chassis, front and rear wishbones, suspension shock towers etc, for any broken parts that may need to be replaced. Then, take a screwdriver and box spanner and check each self tapping screw and nut for security, taking care not to over tighten.

   Next, for those Traxxas models with oil filled shock absorbers, remove them from the chassis and dismantle the coil springs. The damper shafts should push in and pull out with a smooth action. If you feel a jolt as you change direction, this means the oil has leaked out and must be topped up. At the same time, change the O-Ring seals to prevent more leakage. Also check the damper shafts for damage. If they are scratched, change them as soon as possible.

Check the Body-Shell

   If the body shell of your Rock Crawler is broken, ripped or damaged in any way, this can be easily repaired with rubber solution glue. Also, for added protection and if available for your model, fit an under guard to stop dirt and gravel entering the chassis.

Drive Shafts and Turnbuckles

Titanium Turnbuckles
   Examine the drive shafts for wear and replace as required. If possible, change them for titanium. The steel shafts wear and bend too easily.

Examine the Drive System

   The gearbox of your used Rock Crawler should be opened up to check for damaged gears and wear. If there is excessive backlash in the gearing, these should be replaced. A thin coat of grease on the gears is enough to allow smooth operation and reduce further wear.

Pinions and Spur Gears

Spur Gears
   Gears are a weakness on all RC models. Head on collisions can easily damage the gear teeth on nylon and plastic spur gears. Heavy impacts can also loosen the nuts or self tapping screws that hold the motor in Position, allowing the pinion gear to pull out of mesh slightly and rip the tops off the teeth on your spur gear. To minimise this possibility, fit bolts with locking nuts to the motor mount and remember to check them for security after every two or three runs.

Steering Servo and Servo-Saver

Servo Gears
   The steering servo is also prone to damage, the fragile gear teeth of the servo can be broken off, rendering your expensive servo useless, so be sure to obtain a good quality "Servo Saver". Check out my Servo Information article.

Don't Forget those Bearings

Ball Bearings
   If your used Traxxas Rock Crawler comes with plastic and sintered brass bushings (ring type bearings), check the shafts that run in them for wear. Dust and grit can get into these bearings and abrade the shafts. Therefore, you should replace them all with shielded ball bearings. If the model has been run with ring type bearings, you may have to change all the axles and driveshafts. For more information, take a look at my article, How to get the best from your Bearings.



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Manufacturers and Brands Catalogued and Listed by RC-Scrapyard.

   At present, the RC Model Manufacturers, Brands and Distributors covered by us are: ABC Hobby, Academy, Acme Racing, Agama Racing, Amewi, Ansmann Racing, ARRMA, Team Associated, Atomic RC, Axial, AYK, Bolink, Traxxas, Capricorn, Carisma, Carson, Caster Racing, Cen, Corally, Custom Works, Durango, Duratrax, ECX - Electrix, Exceed RC, FG Modellsport, FS-Racing, FTX, Fujimi, Gmade, GS-Racing, Harm, HBX, Helion, Heng Long, Himoto Racing, Hirobo, Hitari, Hobao, Hong-Nor, Hot Bodies, HPI, HSP, Intech, Integy, Jamara, JQ Products, Kawada, Kyosho, Losi, LRP, Maisto, Mardave, Marui, Maverick, MCD Racing, Megatech, Mugen, New Bright, Nichimo, Nikko, Nkok, Ofna, Pro-Pulse, Protech, PTI, RC4WD, Redcat Racing, RJ-Speed, Robitronic, Schumacher, Seben, Serpent, Smartech, Sportwerks, Step-Up, Tamiya, Team-C Racing, Team Magic, Thunder Tiger, Tomy, Top Racing, Traxxas, Trinity, Tyco, Vaterra RC, Venom, VRX Racing, WLToys, X-Factory, Xmods, Xpress, Xray, XTM, Yankee RC, Yokomo, ZD Racing and Zipzaps.

   This is an ongoing project, with new and "lost in time" RC Models and Brands being added as they are found and although most of those listed above have been covered in relative detail, some are still being researched and will be completed in the near future.



















Hints, Tips and Information

Sway Bars

   On most forms of RC model cars, Sway Bars, also referred to as Stabilizers, Torsion Bars, or more commonly in some parts as Anti Roll Bars, are often nothing more than a short length of spring steel, clamped to the chassis or sometimes the gearbox of the car, extending out to the lower wishbones direct or connected to the wishbones using short adjustable or fixed length links and ball joints, depending on their position.

   The principal behind the Sway Bar is simple. As the car enters a corner, weight is transferred to the outside wheels, the chassis rolls due to inertia and the suspension dips and grip on the inside wheels is reduced. In an effort to counter this dipping effect and transfer some grip back to the inside wheels to improve traction as you exit the corner, the sway bars transfer the dip of the outside, to pull down the inside wishbones, improving grip on the outside wheels and improving overall stability.

   Sounds complicated I know, but for some tracks sway bars can be a useful tool when you have exhausted all other options to correct your handling problems.

   Tuning your Sway Bars is quite easy.

Read the Complete Article  ▶ ▶






Hints, Tips and Information

Tires for Off-Road RC Models

   If you only ever intend to race your Buggy, Truggy or Truck at your local track each week end, you will soon learn the best tire - insert combination for your particular model on that specific track surface type. But if you ever visit other tracks in your area, or move on to the national or international race meetings, at other tracks throughout the country, you will soon discover that your trusty setup will not work as well, and you will be forced to invest in many more sets of wheels and tires.

   The choice of Off-Road tires available is mind boggling, and the combinations of Mini-Pin, Micro-Pin, Block, Stud and Ribbed Tires, with all the various types of foam inserts available is a mine field, even for the more experienced.

Read the Complete Article  ▶ ▶







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