INTRODUCTION The XRAY XB2 is a modern, high-competition premium luxury racing 1/10 electric 2WD off-road buggy that is the epitome of high-performance and fine distinctive design. Your XB2 offers highest performance, responsive handling, and traditionally exceptional XRAY quality, engineering, and design. The superb craftsmanship and attention to detail are clearly evident everywhere on the XRAY XB2.
IMPORTANT NOTES – ELECTRICAL • Insulate any exposed electrical wiring (using heat shrink tubing or electrical tape) to prevent dangerous short circuits. Take maximum care in wiring, connecting and insulating cables. Make sure cables are always connected securely. Check connectors for if they become loose. And if so, reconnect them securely. Never use R/C models with damaged wires. A damaged wire is extremely dangerous, and can cause short-circuits resulting in fire.
SYMBOLS USED Part bags used Assemble in the specified order Assemble left and right sides the same way 05 Scale Pay attention here Assemble as many times as specified (here twice) 2x L=R Optional parts Apply grease Apply threadlock Ensure smooth non-binding movement Apply CA glue CA TL Tighten screw gently Apply oil Detail Completed assembly 1:1 OIL Apply cleaner DETAIL TOOLS REQUIRED Scissors (HUDY #188990) Special Tool for turnbuckles, nuts (HUDY #181090) Turnbuckle Wrench 3mm (H
NOT INCLUDED Set-up Book To ensure that you always have access to the most up-to-date version of the Set-up Book you can download the HUDY Set-up Book from their web site at [www.hudy.net] By offering this online version instead of including a hardcopy printed version in kits, you will always be assured of having the most current updated version. XRAY offers wide range of optional tuning parts which are listed in tables like these.
1. REAR DIFFERENTIAL BEVEL & SATELITTE GEARS + PINS 980210 #304932 + #304980 COMPOSITE INCLUDED #335030 + #335080 STEEL 324953 OPTION 964031 HARD 972050 304932 GEAR DIFF. CASE #324910 941014 INCLUDED 324961 304980 #324910-G GRAPHITE OPTION GEAR DIFF.
1. REAR DIFFERENTIAL OIL 964031 Rear diff Silicone oil 3 000cSt Fill just above the diff pin. S 3.5x10x0.2 Fill differential up to the top of the diff pin. USE PROPER AMOUNT OF OIL IN THE DIFFS Use a digital scale to measure the exact amount of oil in the diff. Remember that during operation the diff gets hotter and the heat may allow the oil to expand. If there is too much oil inside it may interfere with the diff operation and damage the internal gears.
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3. REAR SUSPENSION #321102 XB2 GRAPHITE CHASSIS 2.5MM 902320 902325 902310 902316 323550 323084 #321103 ALU CHASSIS - FLEX - SWISS 7075 T6 (2MM) #321268 GRAPHITE GEAR BOX HEIGHT ADJ. PLATE #324013 ALU RIGHT MOTOR PLATE - LOWERED #362280 ALU CONICAL SHIM 3x6x2.
3. REAR SUSPENSION RR Marked “L” INITIAL SETTING (TOE IN = 3º / ANTI-SQUAT = 2º) 903306 SFH M3x6 Marked “R” INITIAL SETTING (TOE IN = 3º / ANTI-SQUAT = 2º) RF XB2 CHASSIS #321102 GRAPHITE 2.5MM OPTION #321103 ALU FLEX 2.0MM OPTION #321104 ALU 2.5MM INCLUDED ARM ARM THREAD LOCK (all screws) If the suspension arm does not move freely use a HUDY Arm Reamer to size the holes of the arms NARROW REAR SUSPENSION HOLDERS Arm Reamer 3.
3. REAR SUSPENSION ALTERNATIVE 1 SHOCKS MOUNTED IN FRONT OF REAR SHOCK TOWER (INITIAL SETTING) 902310 SH M3x10 3x1 0mm 3x1 0mm 3x16m m 3x1 6mm 902316 SH M3x16 ALTERNATIVE 2 SHOCKS MOUNTED BEHIND REAR SHOCK TOWER DO NOT USE FOR BASIC SET-UP 902320 SH M3x20 3x2 0 3x2 3x mm 0mm 25m m 3x2 5mm 902325 SH M3x25 903310 SFH M3x10 For the rear shock position cut holes into the Lexan rear wing. #321268 GRAPHITE GEAR BOX HEIGHT ADJ.
3. REAR DRIVETRAIN #323382 ALU REAR HUB PLATE FOR MULTI ADJ. UPRIGHT - 1-HOLE - SWISS 7075 T6 REAR UPRIGHTS 902316 323040 #323354-H HARD INCLUDED #323354-G GRAPHITE OPTION #323355 OPTION ALU WHEEL HUBS 12MM #365360 +4.5mm - 6 slots INCLUDED 363520 #365359 +3.75mm - 5 slots OPTION #365358 +3.0mm - 4 slots OPTION #365357 +2.25mm - 3 slots OPTION 302665 #365356 +1.5mm - 2 slots OPTION #365355 +0.75mm - 1 slot #365353 0mm #365354 -0.75mm - Lightw.
3. REAR DRIVETRAIN 2x L=R 902205 SH M2x5 Use HUDY Ball-Bearing Grease #106220 - STANDARD #106221 - BLUE #106222 - RED WHEEL HUBS 12MM DRIVE SHAFT (71mm) #365360 +4.5mm - 6 slots INCLUDED ➌ #365359 +3.75mm - 5 slots OPTION ➋ ➑ #365358 +3.0mm - 4 slots OPTION #365357 +2.25mm - 3 slots OPTION ➊ BB 5x12x4 ➏ ➓ 941014 BB 10x15x4 #365356 +1.
3. REAR DRIVETRAIN 902254 SH M2.5x4 961025 S 2.5 Check for free movement DETAIL TIGHTEN GENTLY TIGHTEN GENTLY 2x L=R NOTE ORIENTATION 38.5mm 8mm THREAD THREAD Install the pivot balls with Professional Multi Tool (HUDY #183011) 2x THREAD L=R 8mmTHREAD THREAD 8mm 2x 362280 CON.
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4. FRONT ASSEMBLY NOTE ORIENTATION 903308 SFH M3x8 SIDE CHASSIS GUARDS #321260-M MEDIUM INCLUDED #321260-H HARD OPTION MEDIUM - For low & medium traction HARD - For high traction 903308 SFH M3x8 3x8mm 902308 3x8mm SH M3x8 903308 SFH M3x8 903310 SFH M3x10 GRAPHITE SIDE GUARD BRACE #321266 SOFT INCLUDED #321263 MEDIUM OPTION #321267 STIFF OPTION SOFT - For very-low & low traction tracks. MEDIUM - Medium & high traction. STIFF - For high- & very-high traction tracks.
4. FRONT ASSEMBLY STEERING PLATE NOTE ORIENTATION 303141 SHIM 3x5x1 OIL OIL SH M3x12 930306 BB 3x6x2.5 OPTION COMPOSITE INCLUDED STEERING ARMS NOTE ORIENTATION 902312 ALU #322571 COMPOSITE - Easy to drive, more forgiving, less steering ALU - More aggressive, more steering, more precise steering 3x5x1mm BEARING OIL (HUDY #106230) #322572 Tighten the screws gently but fully, and then loosen 1/3 turn so the composite dual servo saver moves freely.
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5. FRONT SUSPENSION 2x NOTE ORIENTATION SUSPENSION ARM L=R 902254 LEFT ARM = RIGHT ARM SH M2.5x4 NOTE ORIENTATION #322110-M MEDIUM OPTION #322110-H HARD INCLUDED #322110-G GRAPHITE OPTION MEDIUM - For very-low & low traction HARD - For medium & high traction GRAPHITE - For high & very-high traction 961025 S 2.
5. FRONT SUSPENSION 2x WHEEL HEX HUBS 12MM L=R #365360 +4.5mm 6 slots OPTION ➊ 902205 #365359 +3.75mm 5 slots OPTION SH M2x5 #365358 +3.0mm 4 slots OPTION #365357 +2.25mm 3 slots OPTION #365356 981210 P 2x10 +1.5mm 2 slots OPTION #365355 +0.75mm 1 slot OPTION ➌ #365353 #365354 0mm 0 slots INCLUDED -0.75mm Lightw. OPTION OPTIONAL HEX HUB EFFECTS Different offset hex hubs are used to increase or decrease the track-width.
5. FRONT SUSPENSION ROLL CENTER LINKS 2x 39.8mm L=R NOTE ORIENTATION 6mm THREAD 2x Install the pivot balls with Professional Multi Tool (HUDY #183011) 8mm THREAD L=R THREAD THREAD ROLL CENTER LINKS 2x 362280 NOTE ORIENTATION L=R CON. SHIM 3x6x2 8mm THREAD CONICAL SHIM 3x6x2mm DETAIL INITIAL SETTING NOTE ORIENTATION DETAIL ALU CONICAL SHIM 6mm THREAD #362280 SILVER #362280-K BLACK INCLUDED OPTION #362280-O ORANGE OPTION STEERING LINKS 2x INITIAL SETTING 8mm THREAD L=R 38.
6. SHOCK ABSORBERS PISTONS DETAIL 2 holes 2 holes (1.6mm) (1.7mm) 368010 965023 368031 Thick Shim 368161 363240 902205 0 holes (Create custom holes) (0mm - use required drill pin) Thick Shim Thin Shim 368121 970120 306219 970080 368260 368220 2 holes 2 holes (1.6mm) (1.7mm) 0 holes (Create custom holes) (0mm - use required drill pin) 972030 These pistons can NOT be used in shocks without making the custom holes by yourselves.
6. SHOCK ABSORBERS 4x ➋ ➌ 965023 There are two different thickness shims, use them as shown. Use the same procedure when building both front and rear shocks. ➊ C 2.3 FRO NT 2 holes (1.6mm) 970080 O 8x1 2x - SH ORT THICK Shim SHO CK R O-ring OD THIN Shim 972030 O 3x2 INITIAL PISTON SETTING O-ring 2 holes (1.7mm) 2x ➌ ➊ ➋ REA R- LON G SHOCK DAMPING SHOCK PISTONS SHO CK R OD #306219 DOWNSTOP SHIMS IMPORTANT THICKER shim used, GREATER downstop is achieved.
6. SHOCK ABSORBERS DEFAULT SHOCK REBOUND SETTING 0% REBOUND Follow the steps below to set the shock rebound to the default setting of 0%. FRONT (SHORT) 2x Oil 450cSt 2x REAR (LONG) Oil 400cSt 902205 SH M2x5 TIGHTEN FULLY 3~5x UP & DOWN ➊ ➋ ➌ ➍ ➎ Extend the shock shaft completely. Fill the shock body with the shock oil. For the FRONT shocks (short) use 450cSt oil. For the REAR shocks (long) use 400cSt oil.
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7. FINAL ASSEMBLY Install the pivot balls with Professional Multi Tool (HUDY #183011) LONG 901312 SB M3x12 6mm THREAD 6mm THREAD 4mm SHORT 902308 1.
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7. FINAL ASSEMBLY 902306 SH M3x6 Motor (NOT INCLUDED) NOTE ORIENTATION Pinion & Set screw (NOT INCLUDED) XRAY PINIONS (48P) #365718 18T #365719 19T #365720 20T #365721 21T #365722 22T #365723 23T #365724 24T #365725 25T #365726 26T #365727 27T #365728 28T #365729 29T #365730 30T #365731 31T #365732 32T #365733 33T #365734 34T #365735 35T #365736 36T #365737 37T #365738 38T DETAIL Adjust the motor so the pinion meshes with the spur gear properly. Make sure the gear mesh is not too tight.
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7. FINAL ASSEMBLY BATTERY STRAP Foam spacer (INITIAL SETTING) Battery (NOT INCLUDED) #326110 GRAPHITE OPTION #326111 COMPOSITE INCLUDED BATTERY WEIGHT #326180 50g OPTION #326181 35g OPTION REAR BATTERY POSITION (INITIAL SETTING): Foam spacer in front of battery. More traction on rear suspension, less steering FRONT BATTERY POSITION: Foam spacer behind battery. Less traction on rear suspension, more cornering speed The foam battery spacer can be installed either in front or behind the battery.
FINAL ASSEMBLY 2x REAR WING SHIM #293561 903308 SILVER #293561-O ORANGE SFH M3x8 OPTION OPTION XRAY LEXAN REAR WING #323510 1.0mm INCLUDED #323511 1.5mm OPTION #323513 1.0mm RANK OPTION #363510 1.0mm OPTION #363511 1.5mm OPTION #363512 2.
MAINTENANCE SHOCK MAINTENANCE The most important maintenance task for keeping consistent shock performance is refilling and bleeding them correctly. If built correctly, it will not be necessary to re-build them often. Replacing warped/hard o-rings, scarred piston rods, or shaved/split/loose composite upper and lower ball joints are also important. • If building or pairing new shocks, always make sure they are the same length using a shock length measuring tool and adjust the lower ball joints as needed.
APPLIED APPLIED RACE SHIM SHOCK TOWERS TRACK NAME DATE LAPS BEST LAP TIME sec FINAL POSITION QUALIFYING POSITION STEERING BLOCK LONGER BUSHINGS STANDARD LOWER MEDIUM HARD GRPHITE UP DOWN 3 2 1 SHIM TRACK SIZE OPEN CASTER BLOCK TRACTION MEDIUM VERY-LOW VERY-HIGH SURFACE SMOOTH MEDIUM BUMPY TYPE CLAY CARPET ASTRO CONDITION BLUE GROOVE HARD PACKED DRY DUSTY LOAMY WET BALL DIFF SATELITE GEARS COMPOSITE SLIPPER OIL STEEL mm 4 GEARS FRONT MOTOR cSt 3 HOLES mm ø HO
RC AMERICA, 2030 Century Center Blvd #15, Irving, TX 75062, USA PHONE: 214-744-2400, FAX: 214-744-2401, xray@rcamerica.
