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SKU: 91521

8″ Concave Roller RED – 21mm ID

$29.11 Inc. GST

$29.11 Inc. GST

Upgrade your boat trailer with our premium Concave Roller RED 8″. Made from softer red polyurethane plastic, this roller is designed to be less abrasive, non-marking, and tougher than rubber alternatives. It’s perfect for optimizing stability during transit and ensuring an easy launch and retrieval of your boat. Specifically designed for fiberglass boats, this roller enhances your trailer setup with durability and precision. For aluminum boats, we recommend using our Hard-Polypropylene Blue Rollers.

SKU: 91521 Category:

Description

 

Specifications:
  • Width: 8 inches (203mm)
  • Bore Size: 21mm
  • Material: Softer red polyurethane
  • Concave Dimensions: 45mm at the center, expanding to 72mm at the ends
  • Non-Marking: Prevents marking on the boat hull
  • UV Stability: Resistant to UV rays for prolonged use

 

Red Rollers – Ideal for Fiberglass
Blue Rollers – Ideal for Alloy
Black Rollers – Generic Application

Additional information

Weight 0.516 kg
Dimensions 20 × 7 × 7 cm

Warranty & Returns

Any products thought to be faulty can be returned to Trailer Spare Parts Australia for investigation at the customer’s expense. We reserve the right to determine whether the item/s are faulty or have been incorrectly used or mistreated. We are happy to accept any unwanted stock within 7 days of invoice. Returned items must be in “as new” condition for resale. Any specially ordered axles (IRS, Overlay and Drop Axles) are not returnable. Trailer Spare Parts Australia charges a re-stocking fee of 15% to any authorized returns, plus freight if the goods returned are not subject to warranty.

If the goods are subject to warranty, Trailer Spare Parts Australia will replace the goods and pay all freight inbound and outbound under our terms and conditions. All products sold by Trailer Spare Parts Australia carry a 12 months warranty under our terms and conditions.
Recommendations for these terms can be found on each product page, except for disposable parts (bearings, brake pads, etc).

Ask a Question

Axle Length Calculator

Holden / Ford / Parallel

  1. CW – Measure the width of your trailer body.
  2. BS – Measure the offset of the rims being used “with tyre fitted”.
  3. TC – 50mm Gap used on calculator as Standard.

 

Dexter

  1. CW – Measure the width of your trailer body.
  2. BS – Measure the offset of the rims being used “with tyre fitted”.
  3. TC – 40mm Gap used on calculator as Standard.

 

Determine the Rim Stud Pattern

Rim Stud Pattern

stud patterns on your trailer

IMPORTANT: The lines highlighted in yellow are the products we supply.

Wheel Type Stud Diameter Stud Number Inches PCD MM PCD Centre to Centre of Adjacent Studs Centre to Centre of Adjacent Studs
Gemini 7/16" 4 100.00 2 13/16" 70.7
Mini 7/16" 4 4" 101.60 2 13/16" 71.84
Capri 7/16" 4 4 1/4" 107.95 3" 76.33
Cortina/Telstar 7/16" 4 4 1/4" 107.95 3" 76.33
Datsun 1600 7/16" 4 4 1/2" 114.30 3 3/16" 80.82
Early Ford 1/2" 4 4 1/2" 114.30 3 3/16" 80.82
Toyota Corona 7/16" 4 4 1/2" 114.30 3 3/16" 80.82
Valiant to 71 7/16" 5 4" 101.60 2 3/9" 59.72
Holden HT HG HK 7/16" 5 4 1/4" 107.95 2 1/2" 63.45
Ford 1/2" 5 4 1/2" 114.30 2 5/8" 67.18
Valiant 71 - 72 7/16" 5 4 1/2" 114.30 2 5/8" 67.18
Commodore 7/16" 5 120.00 2.776" 70.53
Holden HQ HJ HX 7/16" 5 4 3/4" 120.65 2 13/16" 70.91
Ford F100 1/2" 5 5 1/2" 139.70 3 1/4" 82.11
Ford-Jeep 1.2" 5 5 1/2" 139.70 3 1/4" 82.11
Land Rover 5/8" 5 6 1/2" 165.10 3 13/16" 96.98
Land Cruiser 100 Series 9/16" 5 150.00 88.17
Land Cruiser 4WD 1/2" 6 5 1/2" 139.70 2 3/4" 69.85
Nissan Patrol 1/2" 6 5 1/2" 139.70 2 3/4" 69.85
Nissan Navara D40 1/2" 6 114.30

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