Links to only the best & most useful R/C sites on the web.

General R/C retailers, Custom Part & Upgrade Websites

Amainhobbies Large American stockist of many r/c brands
Arch Fabrication & Machine Aluminium MT parts
Avid RC General r/c retailer
Black Smith Products General R/C retailer
Bomb-Proof Products Aftermarket chassis' ( extinct website )
Crawford Performance Engineering Various MT parts
DLux Axles & various r/c truck parts
Fast-Lad General r/c retailer
FLM Top quality custom aftermarket parts
FlexTekRC Titanium suspension arms
Freestyle RC Custom axles, chassis and parts
Fullforce RC.com After market parts and accessories
Futaba Top quality steering servos & radios
Gorillamaxx After market chassis and suspension parts ( website currently down )
GPM Dead website
Hesse Machine Custom MT parts
HexScrews Fixings supplier
Hitec Top quality steering servos & radios
Hobbyetc Aftermarket parts and upgrades
Hotbodiesonline Miscellaneous compatible parts
HotRacing Miscellaneous compatible/Upgrade parts
How2RC Motor mounts for T-maxx Conversions
Imex Model Massive selection of R/C tyres & rims, and other R/C related goods
Innovative RC Miscellaneous random stuff
Integy Bling aftermarket parts
JConcepts Aftermarket shells, wheels & tires
JER Custom Designs Inc Custom MT parts
Kamtec Body Shell specialists
Kimbrough-products Top quality servo savers
Locked Up RC General r/c parts
Lunsford Racing High quality turnbuckles
MIP After market driveshafts & CVDs
Modelsport Large UK based stockist of many r/c brands
Nova RC Custom parts and conversion kits- formerly Kershaw Designs ( RIP Dan Fischer )
Proline Racing Compatible shells, wheels & tires
Radio Controlled Toys Online General R/C model & accessories retailer
RcBoyz General r/c & parts retailer
Rcmart General r/c & parts retailer
RC-Monster Custom r/c parts & Brushless systems
RCPlanet General parts, spares & equipment
RC Solutions Roll cages
RC Speedy Fabrication Custom tube chassis
RC World General RC retailer
Rdlogics Aftermarket parts and upgrades
Reefs RC USA only, Servo and Wheel related items
Robinson Racing Gen3 Slipper Clutch for the New Emaxx & Erevo
RPM Top quality flexible plastic upgrades
Sky RC Brushless motors, Escs, Chargers & Electronics
SPI Racing Wheels Custom wheels
Stormer Hobbies General r/c retailer
Super Shafty SolidAxle MT parts
Southwest Monster Shop Solid axle monster truck parts
TeknoRC Upgraded Knuckles & conversion parts
TonysScrews Fixings specialist
Towerhobbies Large American stockist of many r/c brands
Traxxas Official source for Traxxas
Ultramaxxed Bullet proof 3906 transmission gears ( extinct website )
Unlimited Engineering Top quality upgrades
Wheelspin models General r/c retailer
XtremeRacing Carbon Fibre chassis upgrades

Battery retailers

Amainhobbies General lipo & Nimh retailers
Banana Hobby General RC and Lipo retailer
CommonSense R/C Nimhs and lipos
Duratrax Good quality nimh packs
ElectriFlyer UK based Lipo retailer
Flitetest RC model and Lipo retailer
HobbyKing Great value Zippy, Turnigy & Nano-tech lipos
HobbyStores Retailers of amazing value Dynamic lipos
Horizon Hobbies Massive RC Retailer
ModelSport UK based retailer- numerous brands of Batteries
Motion RC RC Electronics and Lipo retailer
RC BatteryLipo retailer
Stefan's Lipo shop High quality European lipo retailer
Team Orion Lipo & nimh retailer
Venom Batteries Lipo & nimh retailer

Battery Charger & PSU Retailers

AlleRC Hyperion chargers
BaseRC Various Chargers & Electronics
Chargery Chargery lipo chargers & accessories
CommonSense RC CommonSense RC lipo chargers
EP Buddy Lipo chargers, Connectors & Accessories
HobbyKing HobbyKing, Imax, Turnigy & GT chargers
Horizon Hobby Chargers, Batteries and everything else
ModelSport UK based retailer- numerous brands of DC & AC/DC chargers
Progressive RC FMA & iChargers
RC Echo Chargers & Electronics
Stefan's Lipo Shop Robbe, Pulsar, Hyperion & Chargery chargers
Team Orion Team Orion Pro & Race spec lipo chargers
Venom Venom lipo chargers
Wheelspin models UK based retailer of various brands

Esc & motor Retailers

AstecModels Motors and electronics
BaseRC Brushless motors, escs & electronics
CastleCreations American escs and motors
HobbyKing Motors and ESCs
Hobbywing Chinese escs and motors
Himodel Chinese esc and motor retailer
ICARE-RC Motors and escs
Innov8tivedesigns Escs and Electronics
Lehner-motoren Lehner BL motors
LX R/C Brushless motors, escs & Electronics
Megamotorusa American motors
MGM-ComPro European escs
Neumotors American hand-made motors
OffshoreElectrics Motors and escs
RC Echo Brushless motors, escs & Electronics
Teamtekin Top quality American motors and escs

R/C Lighting Systems & General Electronics

Castlecreations Battery Eliminator Circuits
Dimension Engineering Specialists in r/c lighting and control boards
HobbyKing Low Voltage Cutoffs & General Electonics
Litewave Lots of different Lighting equipment, controllers & kits
Maplin Electronic Components specialists
RC Accessory General Electronics
Robotcombat Miscellaneous r/c models & electronics
Servocity Specialists in r/c servos and miniature electronics

Clod Buster, Juggernaut and TXT-1 Related Sites

RC4WD Clodbuster & Rockcrawler custom parts
JunFac Custom Clodbuster & Crawler parts
ThundertechRacing Custom Rockcrawler parts & upgrades

Pinion Gear Suppliers For 1/8 scale BL Motors

RC-Monster MOD 0.8 ( 32pitch ) pinions Hardened steel pinions from 12 to 26tooth, 5mm bore
Robinson Racing MOD 0.8 pinions Hardened steel pinions from 11 to 25tooth, 5mm bore
Hot Racing 32pitch ( MOD 0.8 ) steel pinions From 8 to 22tooth, make sure to select the 5mm bore pinions for a motor with a 5mm shaft
AmainHobbies Random 32pitch / MOD0.8 pinions, be sure to choose the correct bore size to match your motor's shaft- 3.2mm ( 1/8" ) or 5mm

Other How-tos & Guides

How electric motors work How Brushed & Brushless motors work, with diagrams
How Differentials work Great Youtube video explaining the principle of a Differential
BrianG's R/C Calculations & Electrical solutions website Electrical diagrams and schematics for r/c use