Option Springs for Touring Car/Mini/Super
Nitro RS4
Super Nitro Rally springs can be found here
These option tuning springs will work on our nylon or aluminum shocks for all the RS4 kits and also the Super F1 and Road Star cars equipped with our Super Shocks. These springs are progressive springs (see the picture above for an example), meaning they offer more resistance as more load is put on them.
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Spring
Rate Chart (PDF File) - 158 KB
Color coded for easy identification, this spring rate chart will help
you select the right springs for fine-tuning your HPI car! Exclusively
for HPI springs, with tuning suggestions for Nitro and electric sedans
and Mini cars. The spring rates were determined with the springs compressed
15mm each.
All linear springs are listed in order. Progressive springs are listed softest to hardest after linear spring listings.
Part |
# |
Description |
Suggested Retail Price |
6824 |
2 |
26 x 6.5 x 1.2mm Copper (Linear)
(softest) |
$4.50/pr |
6825 |
2 |
26 x 6 x 1.2mm Silver (Linear) |
4.50/pr |
6826 |
2 |
26 x 5.5 x 1.2mm Gold (Linear) |
4.50/pr |
6841 |
2 |
Pro Linear Spring 13 x 27mm (Orange
216 gf/mm) |
5.50/pr |
6843 |
2 |
Pro Linear Spring 13 x 27mm (Yellow
227 gf/mm) |
5.50/pr |
6844 |
2 |
Pro Linear Spring 13 x 27mm (Red
238 gf/mm) |
5.50/pr |
6846 |
2 |
Pro Linear Spring 13 x 27mm (Green
247 gf/mm) |
5.50/pr |
6847 |
2 |
Pro Linear Spring 13 x 27mm (Blue
264 gf/mm) |
5.50/pr |
6849 |
2 |
Pro Linear Spring 13 x 27mm (Pink
272 gf/mm) |
5.50/pr |
6850 |
2 |
Pro Linear Spring 13 x 27mm 6.5
coils (Bright Yellow) |
6.00/pr |
6851 |
2 |
Pro Linear Spring 13 x 27mm 6.25
coils (Navy) |
6.00/pr |
6852 |
2 |
Pro Linear Spring 13 x 27mm 6
coils (Grey) |
6.00/pr |
6751 |
2 |
Pro Linear Spring 13 x 25mm (Orange
345 gf/mm) (Nitro) |
6.00/pr |
6753 |
2 |
Pro Linear Spring 13 x 25mm (Yellow
392 gf/mm) (Nitro) |
6.00/pr |
6754 |
2 |
Pro Linear Spring 13 x 25mm (Red
432 gf/mm) (Nitro) |
6.00/pr |
6756 |
2 |
Pro Linear Spring 13 x 25mm (Green
480 gf/mm) (Nitro) |
6.00/pr |
6757 |
2 |
Pro Linear Spring 13 x 25mm (Blue
493 gf/mm) (Nitro) |
6.00/pr |
| 6759 |
2 |
Pro Linear Spring 13 x 25mm (Pink
540 gf/mm) (Nitro) |
6.00/pr |
6833 |
2 |
13 x 29 x 1.4mm White (Progressive) |
4.50/pr |
6834 |
2 |
13 x 29 x 1.45mm Yellow (Progressive) |
4.50/pr |
6835 |
2 |
13 x 29 x 1.5mm Red (Progressive) |
4.50/pr |
6836 |
2 |
13 x 29 x 1.55mm Black (Progressive) |
4.50/pr |
6837 |
2 |
13 x 29 x 1.6mm Green (Progressive) |
4.50/pr |
6838 |
2 |
13 x 29 x 1.65mm Blue (Progressive) |
4.50/pr |
6839 |
2 |
13 x 29 x 1.7mm Purple (Progressive)
(stiffest) |
4.50/pr |
Option Springs for the RS4 Rally
These springs fit the front and rear shocks of the 50-66mm stroke shocks for the RS4 Rally. The order of this list is from softest to hardest.
Part |
# |
Description |
Suggested Retail Price |
| 6735 | 2 | 13 x 40 x 1.1mm 10 Coils Red/Medium Soft |
$4.50/pr |
| 6736 | 2 | 13 x 40 x 1.1mm 9 Coils Black/Medium |
4.50/pr |
| 6737 | 2 | 13 x 40 x 1.1mm 8 Coils Green/Medium Hard |
4.50/pr |
Option Springs for the RS4 MT/Nitro MT/Super Nitro Rally
The order of this list is from softest to hardest.
Part |
# |
Description |
Suggested Retail Price |
| 6590 | 2 | Option Spring 14x80x1.1 17 Coils (Yellow / 2pcs.) |
6.00 |
| 6593 | 2 | Option Spring 14x80x1.1 15 Coils (Blue / 2pcs.) |
6.00 |
| 6594 | 2 | Option Spring 14x80x1.1 14 Coils (Purple / 2pcs.) |
6.00 |
| 6783 | 2 | 13 x 57 x 1.1mm 11 coils (White/Super Soft) FRONT |
$6.00/pr |
| 6784 | 2 | 13 x 57 x 1.1mm 10 coils (Yellow/Soft) FRONT |
5.00/pr |
| 6786 | 2 | 13 x 57 x 1.1mm 9 coils (Black/Medium) FRONT |
3.50/pr |
| 6788 | 2 | 13 x 57 x 1.2mm 9.5 coils (Blue/Hard) FRONT |
5.00/pr |
| 6794 | 2 | 13 x 70 x 1.1mm 15 coils (Yellow/Soft) REAR |
5.00/pr |
| 6796 | 2 | 13 x 70 x 1.1mm 14 coils (Black/Medium) REAR |
3.50/pr |
| 6798 | 2 | 13 x 70 x 1.1mm 13 coils (Blue/Hard) REAR |
5.00/pr |
| 6799 | 2 | 13 x 70 x 1.1mm 12 coils (Purple/Super Firm) REAR |
6.00/pr |
Roll Springs for Road Star, Super F1 and Street Machine Kits
These springs are for the rear pod of our on-road pan-type cars. The order of this list is from softest to hardest.
Part |
# |
Description |
Suggested Retail Price |
| A084 | 2 | Rear Roll Spring (0.90) WHITE |
$4.50/pr |
| A083 | 2 | Rear Roll Spring (1.00) YELLOW |
4.50/pr |
| A085 | 2 | Rear Roll Spring (1.10) PINK |
4.50/pr |
| A018 | 2 | Rear Roll Spring (1.20) KIT SPRING |
4.50/pr |
| A086 | 2 | Rear Roll Spring (1.30) GREEN |
4.50/pr |
| A087 | 2 | Rear Roll Spring (1.40) BLUE |
4.50/pr |
Rear Shock Springs for Road Star, Super F1 and Street Machine Kits
These springs will fit the kit rear shock that comes standard with our On-Road pan cars. NOTE: These springs will not fit the Super Shock. The order of this list is from softest to hardest.
Part |
# |
Description |
Suggested Retail Price |
| Z008 | 1 | Rear Shock Spring (1.25) SILVER |
$3.50/pr |
| A090 | 1 | Rear Shock Spring (1.40) PINK |
3.50/pr |
| A091 | 1 | Rear Shock Spring (1.50) GREEN |
3.50/pr |
| A092 | 1 | Rear Shock Spring (1.60) BLUE |
3.50/pr |
Front Springs for Road Star, Super F1 and Street Machine Kits
These springs will fit the front suspension of our On-Road pan cars and Tamiya and Associated pan car suspension kits. The order of this list is from softest to hardest.
Part |
# |
Description |
Suggested Retail Price |
| A095 | 2 |
On-Road Front Spring (0.65) PINK |
$4.00/pr |
| A096 | 2 |
On-Road Front Spring (0.70) GREEN |
4.00/pr |
| A097 | 2 |
On-Road Front Spring (0.75) BLUE |
4.00/pr |
| A050 | 2 |
On-Road Front Spring (0.80) KIT SPRING |
4.00/pr |
Option Springs for the Pro 4 Electric Touring Car
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