SKU: 7834796359

HKS Max 4 GT-A GDB (A-D) Full Kit

Sale price$1080.00 Regular price$1200.00
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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24

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Description

HKS Max 4 GT-A GDB (A-D) Full KitSingle Tube Damper Design Mono tube dampers allow for more accurate and stable control and adjustment of dampening. Lower ride height and center of gravity gives a more stable ride. Dust Boot Protect the shaft from the flying stones. PNE Coating Using this special surface coating provides 5 times better durability over standard galvanising. This prevents build up around the threads of the adjustment areas allowing for easier height adjustment. M Shaft

Single Tube Damper Design

  • Mono tube dampers allow for more accurate and stable control and adjustment of dampening. Lower ride height and center of gravity gives a more stable ride.

Dust Boot

  • Protect the shaft from the flying stones.

PNE Coating

  • Using this special surface coating provides 5 times better durability over standard galvanising. This prevents build-up around the threads of the adjustment areas allowing for easier height adjustment.

M Shaft (?46 normal type)

  • With the new design of cylinder shaft since the HIPERMAX M-1, MAX IV increased the cylinder shaft size to have a firm damping even at a little stroke range by optimizing the oil pressure characteristic. We mainly adopted this to the rear damper that can have a better driving experience.

Adopted Pillow Ball Upper Mount

  • For more accurate and sharp steering.

New Design Needle

  • Newly designed needle has been used to revise the very low speed and middle and high speed dampening which is key to a comfort ride.

Reduction of Unsprung Weight

  • In order to reduce unsprung weight, bracket, ride height adjusters and lock nuts are made from aluminium. (Not for all vehicles)

30 Step Damping Force Adjustment

  • 30 levels of dampening adjustment allow fine tune adjustment for street, circuit winding roads, highway, or the weight of the vehicle.

Specification:

  FRONT REAR
Damping force adjustment 30 steps 30 steps
Base valve - -
Height adjustable lower bracket ? ?
Upper mount Spherical bearing ????
Inverted/Normal type Inverted Inverted
Damper/Spring layout Coilover Coilover
Spring rate change at factory Possible Possible
Damping force adjustment with wire - -
Helper spring
(Spring rate N/mm)
?(4.7) ?(19.8)

  

Kit Information

  • Spring of Full Kit
  F R
Spring rate N/mm(kgf/mm) 59+19 ( 6+2=8 ) 38+19 ( 4+2=6 )
Free height (mm) 250 250
Spring type Straight Straight Barrel type
Recommended range to change spring rate N/mm(kgf/mm) ±20 ( 2 ) ?20 ( 2 )
  • Specification of damper
  F R
Damping force (Rebound/Damping)N* 820 / 400 400 / 220
Default position of dial 15 15
Remaining damper stroke (Rebound/Damping)mm 70/56(6) 78/91(11)
  • Setting Data
  F R
Default Test Drivable limit
High *
Drivable limit
Low *
Default Test Drivable limit
High *
Drivable limit
Low *
Length of
case (mm)
294 ? 336 285 343 ? 369 340
Spring
Set length(mm)
282 ? ? ? 297 ? ? 295
Length to ride hight
adjuster (mm)
22 ? 64 13 122 ? 148 117
Lever ratio 1.10 1.08
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 7834796359

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C
Verified Purchase
christopher lasecki
Draper, US
★★★★★ 4
Good wrist rest
Color: Black
Comfortable wrist rest. The gel is a relief, replacing one that was not as padded. This works great. I put a little strip of Velcro tape to affix it to my keyboard, works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
J
Verified Purchase
Jewels8273
Omaha, US
★★★★★ 5
Helping my daily work life!
Color: Black
This has minimized my arm, wrist and hand pain. It’s soft, sturdy and stays in place. Reasonable price and would recommend if you want something with solid quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
T
Verified Purchase
Truth lies here
Whiting, US
★★★★★ 5
Good thick cushion
Color: Black Set
Thick and comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
C
Verified Purchase
Courtney Eden
Houston, US
★★★★★ 5
Great product
Color: Purple Set
Saved my wrists from a lot of pain
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Reviewed in the United States on May 19, 2026
O
Verified Purchase
OhioD
Phoenix, US
★★★★★ 3
Color sub-par
Color: Purple Set
I ordered the purple (lavendar) it looks like it's WHITE. Very pale.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026

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