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Summary of Contents for BMI Racing Copperhead 12

  • Page 2 Here at BMI Racing, we put quality before quantity. Unlike a lot of cars available, we make all of our parts in house. From pivot balls to carbon fiber components, every part is guaranteed to be the highest quality. We do not sacrifice anywhere on our products.
  • Page 3 Special Note: With a hobby knife, carefully chamfer the top The Copperhead 12 uses IRS hard anodized alloy of the rod ends opening. This creates clearance for pivot balls and the new IRS lower suspension arms.
  • Page 4 Step 8 Step 6 Locate the titanium front axles, four 4-40 alloy lock nuts, and two alloy pivot balls. Attach the upper suspension arm assembly Thread the titanium axles into the steering to the lower suspension spindles. Note that the threads on the axles that arms as shown with 4-40 x go into the spindles are left hand.
  • Page 5: Rear Suspension Assembly

    Step 10 Locate four 8-32 x 5/8” screws and 4 nylon lower suspension arm spacer. Use 1 thin and 1 thick nylon spacer under each pad on the arms. Pass a screw through the chassis and slide a nylon riser over the screw. Start threading the screw into the lower suspension arm but do not tighten it.
  • Page 6 Step 12 Step 13 Take a minute to prepare all your carbon components Locate the delrin center pivot assembly, one 4-40 x for assembly. With a file or sand paper knock off any ¼”, and two 4-40 x 3/8” flat head screws. sharp edges along the perimeter or the carbon parts.
  • Page 7 Step 18 Locate and install the two long copper anodized threaded spacers as shown with 4-40 x ¼” flat head screws. Step 16 Step 18 Locate the two alloy rear pod plates, the alloy rear pod plate spacer tube 2 4-40 x 3/8” flat head screws and 4 4-40 x ¼”...
  • Page 8 Step 20 Step 21 Install the molded shock mount-antenna mount with 2 4-40 x 1/4” flat head screws using the 2 rear mounting holes. Assemble the Silva bladder shock as per the Locate the rear axle parts bag. There are a couple included instructions with 50wt silicon shock oil.
  • Page 9 Shim as necessary to obtain a centered axle and a 172mm rear track width. Special Note: The Copperhead 12 is designed to work with IRS precision ride height adjuster cams. We find too much size variation in other cams and cannot guarantee they will fit properly.
  • Page 10 Step 26 Step 25 The Servo mounts are attached to the lower chassis with two 4-40 x ¼” flat head screws. Locate two titanium turnbuckles and four black ball At this time drill out the center holes on your servo cups.
  • Page 11 Copperhead 12 1/12 Pro (LiPo) Racing Chassis Kit Includes: (1) #DBB1011R LiPo CHASSIS PLATE or (1) DBB1010R CHASSIS PLATE (1) #DBB1020R LOWER POD CF (1) #DBB1030R TOP REAR POD PLATE (1) #DBB1141 CROSS BRACE (1) STICKER SHEET (1) #DBB7010 BOCA 1/4 X 3/8 FLANGED BEARING PAIR (5)
  • Page 12 (1) #DBB2010 IRS LOWER SUSPENSION ARMS, SPACERS & SCREWS (1) #DBB2020 FRONT UPPER SUSPENSION ARM MOUNT SET (1) #DBB2025 UPPER SUSPENSION ARMS PAIR (2) (1) #DBB2030 FRONT UPPER SUSPENSION ARM ROD END PAIR (2) (1) #DBB2035 FRONT UPPER SUSPENSION ARM TURNBUCKLE PAIR (2) (1) #DBB2040 IRS UPPER HINGE PIN SET (2) (1) #DBB2050 FRONT SUSPENSION PIVOT BALLS (4) (1) #DBB2060 STEERING SPINDLE PAIR (2)

This manual is also suitable for:

Copperhead 10Db12rDb10r