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Double A Arm Suspension
 

Introduction

The Double "A" arm rear suspension has been designed as an optional rear suspension to suit the Piranha series II.

This new rear end fits into exactly the same position as the Piranha series II single arm rear suspension, all bar work remains the same.

The Double "A" Arm rear has the following advantages over the standard Piranha single arm rear suspension.

  • More control over full suspension Camber
  • Stronger design spreading loads over a larger area.
  • More resistance to acceleration torque reaction effects.
  • Increased droop available without going into positive camber.
  • More suspension travel.
  • Better resistance to frontal wheel forces from severe bumps.
  • Increased braking capacity.

The construction features common length "A" arms, all arms can be made out of one common jig. The suspension geometry features progressive negative camber which equals precise stability in severe offroad conditions. 

Designed to suit the Piranha series II buggy, but also a valuable component for any home built offroad buggy.

The plans include detail 3D drawings of all the parts that need to be made, rear housing, uprights, driveshafts, drive hubs, wheel hubs, axles, chain adjusters, disc rotor, caliper mount, bushes, pivot pins & many detail assembly & exploded views.

Without doubt the most comprehensive detailed plans available.

NOTE: The Double "A" arm suspension plans cover the complete rear suspension only, not the chassis or other buggy parts.

If building a Piranha series II with this suspension both sets of plans are required.

Specifications
Suspension design: Equal length Double 'A' arm independent to use coil over shocks, 285mm travel, (11").
Track: 1430mm (56.3") hub face to hub face.
Brakes: Large 280mm, (11”) diameter inboard rotor with twin piston motorcycle type caliper.
Ground Clearance: 280 to 300mm, (12")
Suitable engines: Designed to Suit chain drive type motorcycle engines up to 100hp.
Estimated cost to manufacture: $1,00.00 to $1,800.00, (depending on skill level & facilities available). All components can be manufactured to the comprehensive plans available at www.eziplans.com

 

 

NOTE: Prices show include 10% GST, which only applies to Australian customers. USA residents will only pay approx 94% of list prices quoted due to EXCHANGE rates. Click here to check the value in your local currency.

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Brake Pad AUD$32.00
 
032 PAD, Spare brake pads to suit The Edge Products CAL032 rear caliper.
PART NUMBER:032 PAD
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Banjo Bolt AUD$7.00
 
Banjo Bolt with crush washers, M10x1.25, used to connect brake hose to master cylinder, another used to connect brake hose to Caliper.
PART NUMBER:BB-01
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Suspension Upright Pivot Bushes (8) AUD$56.00
 
Suspension upright pivot bushes, Acetal, (set of 8).
PART NUMBER:BSH12-8
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Supension Arm Pivot Bushes (8) AUD$56.01
 
Suspension Arm Pivot Bushes, Acetal (set of 8)
PART NUMBER:BSH16-8
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Brake Caliper (Twin Piston) AUD$135.00
 
Brake Caliper, alloy twin piston for rear brakes,
PART NUMBER:CAL032
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530 Pitch Drive Chain AUD$78.00 (save $9.00)
 5 days left!
Drive Chain, 530 pitch, Heavy duty motorcycle O-ring chain, 114 links with connector, 7500 psi tensile rating.
PART NUMBER:CH530-114
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Chain join link 530 AUD$9.00 (save $6.00)
 5 days left!
Spare Connector link for Edge CH530-114 530 O-Ring chain.
PART NUMBER:CH530 CON
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Double A Arm Housing Plates AUD$145.00
 
Laser cut plates for Double A arm Rear end housing, 2 x Side plates, 1 x Rear pivot plate, 1 x Front pivot plate, 1 x Top plate. Just needs welding.
PART NUMBER:DA01
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Rear Suspension Arms (4) AUD$310.00
 
Rear suspension arms, top & bottom, right & left, fully welded. Set of 4.
PART NUMBER:DA03
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Rear Suspension Uprights (Unwelded) AUD$96.00
 
Rear suspension uprights, set of laser cut plates,For pair of uprights, Unwelded, set of 8 plates, lightweight design.
PART NUMBER:DA04
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Suspension Uprights (Fully Welded) AUD$132.00
 
Fully welded DA04 uprights, (pair) 2
PART NUMBER:DA04WELD
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Rear Suspension Arm Pivot Bolts AUD$58.00
 
Rear suspension arm pivot bolts, 16mm x 381mm long.
PART NUMBER:DA05
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Suspension Upright Pivot Bolts (4) AUD$7.01
 
Suspension upright pivot bolts, M12 x 90, includes Nyloc nuts & washers, set of 4.
PART NUMBER:DA06
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Shock Mount Spacers (8) AUD$24.00
 
Shock mount spacers, set of 8 for rear shocks.
PART NUMBER:DA07
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Double A - Adjuster Plates and Caliper Mount AUD$70.00
 
Adjuster plates & caliper mount for Double A arm rear suspension
PART NUMBER:DA08
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Rear Disc Rotors AUD$65.01
 
Rear Disc rotor. 280mm dia, 4mm thick, slotted with 4 hole mount. Suits PIR07 drive hub
PART NUMBER:DBR-04
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Floating Rotor (280mm) AUD$135.00
 
Upgrade 280mm diameter floating rotor, 5mm thick, replaces DBR04 Piranha rear rotor for either the Piranha single A arm or Double A arm rear suspensions.
PART NUMBER:DBR280PIR
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Stainless Steel Rear Brake Hose (2.4m) AUD$97.01
 
Rear brake hose, stainless steel braided with Banjo fitting each end. 2.4 metres long.
PART NUMBER:HSE-04
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Rear Axles (2) AUD$210.00
 
Rear axles, (2) Splined shafts with 4 stud wheel hubs, 115mm PCD, includes studs & nuts
PART NUMBER:IND-08
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Centre Shaft/Axle Bearings (3/8") (6) AUD$125.00
 
Bearings for centre shaft & axles, 1 3/8”, 6 bearings.
PART NUMBER:PIR04
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Bearing Clamp Flanges AUD$55.00
 
Bearing clamp flanges to suit bearings for centre shaft & axles, 6 pair, (12).
PART NUMBER:PIR05
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Centre Shaft (3/8" 6 Spline) AUD$86.00
 
Centre shaft , 1 3/8” six spline, 306mm long with machined grooves.
PART NUMBER:PIR06
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Drive Hub (3/8" 6 Spline) AUD$75.00
 
Drive Hub, 1 3/8” six spline bore with 4 bolt flange. (suits SPR530-50/66/60 & DBR04) (each) 2 req’d
PART NUMBER:PIR07
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Rear Drive Shafts, KIT AUD$475.00
 
Rear Drive Shafts, Uni Joint type, Fit between Centre shaft & Axles. Left & right side.
PART NUMBER:PIR12
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Double A Arm Rear End Kitset AUD$2,100.00
 
Complete Double “A” arm rear end kitset, Centre housing & uprights not welded. Suspension arms fully welded. All nuts & bolts.Kit includes all parts from wheel hub to wheel hub.
PART NUMBER:PIR18
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CV joint adaptor kit for Piranha AUD$550.00 (save $90.00)
 3 days left!
Adaptor kit to fit Porsche 924 axles & CV joints to the Piranha. Includes the following parts: 1x Splined Centre shaft, 2 x Splined axles with billet wheel hubs, (4 stud 115mm PCD) 4 x CV splined adaptor hubs, 4 x retaining bolts & washers. To suit type 2 CV joints of 6 x M8 bolts on 86mm PCD. This kit suits Single or Double A arm rear suspensions & replaces parts PIR06 & IND-08. Part PIR12, (driveshafts) are replaced by purchasing original Porsche 924 CV joint/axle assemblies. Instead of
PART NUMBER:PIR924-KIT
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Rear Wheel Hubs AUD$132.00
 
Rear wheel hubs only, Machined from solid 1045 bar, 1 1/4” bore, 4 stud 101.6mm PCD with studs & nuts. Please advise if you require a different stud pattern. (hubs not required if ordering rear axle).
PART NUMBER:RWH-02
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Rear Wheel hubs blank AUD$115.00
 
Wheel hub, Blank no holes, 1 1/4", (31.75mm) bore, 137mm outside diameter, 63mm location diameter, 8mm thick flange. Machined from 1045 Billet steel. No stud pattern drilled so you can drill to your own wheel pattern. Pair, (2).
PART NUMBER:RWH-BLANK
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REAR SHOCKS, (Pair) KIT AUD$765.00
 
Rear shocks, coilover, gas filled, heavy duty, 12mm coils, rebuildable, 750mm eye to eye. (2) Suits Piranha series II.
PART NUMBER:SHOCK 750R
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Rear Sprocket (50 tooth,530 Pitch) AUD$72.00
 
Rear Sprocket, 50 tooth, 530 pitch, Suits Piranha PIR07 drive hub or Sidewinder MHU-01, Has mount holes for Sidewinder SPROK GUIDE plates (use either 50, 51, 55 or 60 tooth sprocket).
PART NUMBER:SPR530-50
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Rear Sprocket (55 tooth,530 Pitch) AUD$72.00
 
Rear Sprocket, 55 tooth, 530 pitch, Suits Piranha PIR07 drive hub or Sidewinder MHU-01 (use either 50, 51, 55 or 60 tooth sprocket).
PART NUMBER:SPR530-55
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Rear Sprocket (60 tooth,530 Pitch) AUD$75.00
 
Rear Sprocket, 60 tooth, 530 pitch, Suits Piranha PIR07 drive hub. (use either 50, 55 or 60 tooth sprocket).
PART NUMBER:SPR530-60
Qty:

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Rear Sprocket (51 tooth/530 Pitch) AUD$72.00
 
Rear Sprocket, 51 tooth, 530 pitch, Suits Sidewinder or Piranha, Has mount holes for Sidewinder SPROK GUIDE plates.
PART NUMBER:SPR530-51
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Rear Sprocket (45 tooth,530 Pitch) AUD$72.00
 
Rear Sprocket, 45 tooth, 530 Pitch, Suits Piranha PIR07 drive hub or universal MHU-01 drive hub.
PART NUMBER:SPR530-45
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