Koya Wheels FAQ

FAQ

How to measure

Offset or Backspace

Download How to measure

To measure the backspace of a wheel in millimeters:

Use a millimeter ruler to measure from the mounting surface to the straightedge.
This measurement is the wheel's backspace, typically provided in millimeters (mm).

To measure the offset of a wheel, follow these steps:

A (Wheel Width): Divide the wheel’s total width by two to get the centerline.
B (Backspace): Measure from the mounting surface to the inner edge of the wheel.
Calculate the offset:
Example:
Wheel width(Centerline) = 300mm
Backspace = 130mm
Offset = 300mm / 2 - 130mm = +20mm

Backspace to Offset Conversion

Wheel width:

Backspace:

Offset:

SEMI-Forged

What is SEMI-Forged

The Semi Forging process provides us with a distinct advantage by significantly enhancing strength while using considerably less material.

Once the aluminum is heated and forged, this process substantially improves its properties, particularly in terms of deformation resistance and stability.

Weight Reduction

The Semi Forged rim is approximately 10%-20% lighter than conventional cast wheels, offering enhanced performance and efficiency.

SEMI-Forged Order Procedure

1. Consult with Our Sales Team or Authorized Dealer

Speak with our knowledgeable sales representatives or visit an authorized dealer to discuss your needs.

2. Select Your Preferred Model and Design Finishes

Choose from a wide range of models and customize the design finishes to suit your preferences.

3. Confirm Your Order

Review and confirm your selected model, specifications, and finishes.

4. Invoice

Complete your purchase by paying the invoice. Production will begin once payment is received.

5. Production time

Our standard production time is approximately 10-14 working days. However, this may vary depending on the current production workload.

6. Shipping

Within Australia
- Delivery Time: 1-14 days, depending on the freight company and location.
International
- Delivery Time: 1-14 days, depending on the freight company and location.
- Local import duties or taxes may apply.

Full Forged

Forged Material

1. 6061-T6 Forged Aluminum:

This refers to aluminum alloy 6061 that has been forged and treated to T6 temper. It is known for its high strength, excellent corrosion resistance, and good workability.

2. Monoblock 1-piece Forged:

This indicates a single, solid piece of material that has been forged into its final shape. This process enhances the material's structural integrity and performance, providing superior strength and durability.

How Forged are made

The Semi Forged rim is approximately 10%-20% lighter than conventional cast wheels, offering enhanced performance and efficiency.

Custom Forged order procedure

1. 3D Deawing

A deposit of AUD $500 is required and is non-refundable.
The estimated processing time is approximately 7 working days, subject to production workload.

2. Design Proof

Please confirm or indicate if any changes are needed.
One proof is provided free of charge.
Additional redesigns will incur a fee of AUD$500.
Additional time required will depend on the production workload

3. Design Confirmed

Balance amount due before production commences.
Approximately 7-10 weeks turnaround, depending on production workload.

4. Shipping

Within Australia
- Delivery Time: 1-14 days, depending on the freight company and location.
International
- Delivery Time: 1-14 days, depending on the freight company and location.
- Local import duties or taxes may apply.

Warranty Term and condition

Warranty

All KOYA products listed on this website unless otherwise stated:
- A 12-month guarantee from the purchase date against any peeling or defects on the finish (chrome, paint, and machined face/polished finish) on the face and lip of the rim.
- A lifetime guarantee on any structural problems under normal driving conditions.
- Warranty claim must have original invoice with printed date.
VIA JWL TUV APROVED
All KOYA Wheels cover PRODUCTS LIABILITY INSURANCE (10 MILLION)

What the warranty does cover are below

(KOYA will repair or replace the wheel once they are proven faulty within the warranty period. Forward and return freight will be at the owner’s expense in all warranty situations unless specified. Cost of mounting/demounting tyres from wheels, wheel balancing/alignment, and other consequential costs incurred during the warranty process will be at the owner’s expense unless otherwise specified.)
- WHEEL CRACK WITH PERFECT ROUND NO BUCKLE
- PEELING (chrome, paint, and machined face/polished finish) on the face and lip of the rim.
- AIR LEAK

What the warranty does not cover are below

Cosmetic defects on the window, stud holes, or inner/hidden parts of the rim.
Damages in the finish of the wheel (such as chipped paint or scratches) that are caused by careless/inappropriate tyre-fitting process.
Wheels that are not cleaned according to the instructions and defects start to appear on the finis.
Fracture or severe buckling of the wheels outside normal driving conditions i.e., in accidents or other impacts, is not included in this cover.
Wheels that have been damaged in transit, accident, or other method outside the hands of KOYA personnel.
Wheels that have been modified/repair without previous agreement with KOYA.
Wheels that have been fitted with the knowledge that they are not load rated for the vehicle.
Wheels that have been fitted with the wrong tyres, or used to carry excessive loads.
Inappropriate usage of the wheels, i.e., passenger wheels used for off-road purposes.
Accessories (i.e. hub rings, nuts, bolts) included with the wheel purchases that are free of charge do not fall under the warranty conditions.
Track use : Our warranty does not cover any damage or defects caused by track use. This includes, but is not limited to, wear and tear, damage due to high-speed driving, or other activities associated with track racing. Track use places exceptional stress on vehicle components, which can lead to premature wear or failure. As such, any issues arising from track use are expressly excluded from our warranty coverage.