This kit is a radio controlled model racing product and could cause personal injury or harm if not used as intended. The A12X car is designed for use on r/c car race tracks; it should not be used in areas primarily intended for use by the general public.
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STEP 1 AM1206 Note: The “X” engraving should be facing upwards! C1205-X SH1.5W SH1.5W C1204 SF3X10 SF3X10 Note: SH1.5W is 7.4x3x1.5mm alloy spacer. STEP 2 SB3X5AL x2 SB3X5AL x2 Note: SB3X5AL is 3x5mm alloy screw. AM1203-X...
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STEP 3 ST1248 Use a 3mm hex driver to screw ST1248. Apply some low strength thread locker to the thread. AM1203-X ST1248 ST1248 Screw ST1248 flush in AM1203-X from lower side. STEP 4 Note: The kit’s rollcenter set is LRC (Low Roll Center) set. Try to install the joints without ST1255 Optional rollcenter sets are available (not kit included):...
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STEP 5 STEP 6 Add a small amount of silicone oil into the groove of ST1202-XA. Add ~0,3 g of 50 000...100 000 cst silicone oil into the cavity of ST1204-X damper case. setup. We recommend 100 000 cst silicone oil as the base Keep ST1204-X upright OR14V (4x1mm o-ring) for several minutes...
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STEP 8 Repeat STEPS 5,6 &7 for other side of ST1204-X and check that both ST1202-XA rotors are correctly installed (flush with the ST1204-X face) Note: These faces of ST1204-X and ST1202-XA should be flush. Note: Check this recommended size. STEP 9 SB3X5 SB3X5...
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STEP 11 Note DT1210 nut orientation and allignment! Note ST1203-X orientation! ST1203-X DT1210 ST1203-X Tip: Use some low strength thread DT1210 locker (blue) for DT1210 plastic nut to ST1236 ensure a bit more tight fit in the thread. Don’t use thread locker between ST1203-X and ST1236! ST1236 ~0,5 mm...
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STEP 13 AT1203 SH0.25 Note: An assortment of SH shims is used for setting of the desired rear ride height. SH0.5 SH1.0 SH1.75 SH0.25 SH0.5 SH1.0 SH1.75 SH0.25...SH1.0 SH0.25...SH1.0 SB3X12 SB3X12 STEP 14 B168ZZ OR15 Stretch OR15 1x5mm o-ring and Prepare two B168ZZ bearings place it on B168ZZ ball bearing.
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STEP 16 DT1211 DT1211 The side springs in the kit: SPR12XS-C0.8 - Silver Tip: Use low strength thread locker SPR12XS-C1.0 - Black (blue) for DT1211 holders to ensure SPR12XS-C1.2 - Copper a bit more tight fit in the thread. ST1211 ST1211 SPR12XS-C1.0 SPR12XS-C1.0...
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STEP 18 AT1201 AT1201 note orientation! note orientation! DT1202 DT1202 ST24 ST24 SH1.0 SH1.0 SH0.5 SH0.5 AT1204-X AT1204-X OR155SI OR155SI SH0.1 x 0...2 SH0.1 x 0...2 note orientation! note orientation! DT1202 DT1202 If less damping is required remove OR155SI o-rings and use only thick silicone grease AT1201 AT1201 inside the AT1204-X steering block and...
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STEP 20 Installation of the standard mini servo. Installation of the SANWA SRG and MKS HV50P servo. SB3X5AL C1201-X SH1.0 SB3X5AL SB3X5AL C1201-X SB3X5AL SH1.0 AT1202 ST24-4.0 x2 SH0.25 SB3X6 ST24-4.0 x2 servo (not included!) AT1202 SH0.25 Servosaver (not included!) SB3X6 Mini servo (not included!) Up to 35x30x15mm mini...
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STEP 23 Note: Use thin double sided tape to secure the P1215 foam bumper onto the C1204 bumper plate. P1215 P14-2 P14-2 P14-2 SB3X10 P14-2 Motor (not included) SB3X10 SF3X10 SF3X10 SH0.5 SH0.5 SB3X10 SB3X8 STEP 24 Note: Use OR91 9x1mm o-ring with the thick spur gears.
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STEP 25 SC25X8 AT1207-X SH12R3.5 SH12R2.0 SH12R0.5 SC25X8 Note: The second SC25X8 M2.5x8 screw is used for perfect axle balancing of the left wheel hub. SH12R0.5 SH12R2.0 Note: The second SC25X8 M2.5x8 screw is used for Note: The set of SH12R*** spacers shown ensures perfect axial balancing of the left wheel hub.
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Note: When using larger diameter tires, it maybe necessary to use spacers under the C1205-X to obtain the desired ride height. Adjusting the number or thickness of shims under and above the steering block will not be sufficient to lower the ride height to a desirable setting.
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STEP 26 STEP 27 Note: Combination of SH12F0.5 spacers on both sides of the front wheel is used for the front width adjustment. Use optional SH12F0.1 spacers for more precise adjustment. Front 1/12 wheel (not included) B156 SH12F0.5 B156 SB3X5 Pinion gear (not included) STEP 28...
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Setting of the Rear Downstop (RD). ST1236 Spring Rod Height SRH Rear Downstop - the RD value in the A12X car indicates how far the ST1203-X motor pod can drop below the bottom surface of the rear damper. Downstop Nut Gap DNG In the A12X car the RD directly depends on the gap between the nut DT1210 and the rod ST1203-X - Downstop Nut Gap DNG.
SETUP SHEET A12X VERSION 1.0 DATE TEMPERATURE AIR / TRACK °C °C NAME COUNTRY ASPHALT OUTDOOR INDOOR CARPET TRACK CONDITION BUMPY FLAT RACE TECHNICAL MIX ED FAST TRACTION TRACK MEDIUM HIGH SERVO PLATE SUSPENSION PLATE STEERING HUB POSTS ST1208-C4AL C1205-X...
Spare parts Parts # Description Parts # Description SPR12 XR - C1.0 R ear Spring C1 .0 AM1202 -X Motor Mount R ear Spring C0 .8 SPR12 X R- C0.8 AM1203 -X Battery Plate SPR12 XR - C1.2 R ear Spring C1 .2 AM1204 X-ST Chassis Plate SPR05...
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