Ark Boat Trailer Black Rubber Keel Roller β 114mm Wide, UV-Stable, 17mm Bore for Fibreglass Boats (SKU: CRBK118X16)
$8.00
Compact Ark keel roller made from UV-stable black rubber. 114mm wide with 17mm bore, perfect for fibreglass boat trailers using 16mm spindles. Reliable, lightweight, and easy to install.
In stock
Compact 114mm Ark Black Rubber Keel Roller β UV-Stable & Boat-Friendly
Designed for fibreglass boats and compact trailer setups, the Ark CRBK118X16 is a reliable 114mm black rubber keel roller that offers just the right amount of flexibility and support where you need it most.
Featuring a 17mm bore to suit standard 16mm spindles, this roller is made from UV-stable marine-grade rubber, giving it excellent resistance to sunlight, saltwater, and rough launching conditions. Itβs especially suitable for smaller vessels or tight trailer spaces where a full-size roller might not fit.
Ark is known for producing tough, Aussie-ready trailer components, and this compact roller continues the tradition β rugged, simple, and ready to roll.
Key Specifications
(Scrollable table β great for mobile users!)
| Item | Details |
|---|---|
| Model | CRBK118X16 |
| Brand | Ark |
| Roller Width | 114mm |
| Bore Size | 17mm (for 16mm spindle) |
| Material | Black UV-Stable Rubber |
| Best Use | Fibreglass Boats, Small Trailers |
Why Choose Ark?
- Trusted Australian trailer brand
- Great fit for fibreglass hulls
- Ideal for tight setups where space matters
Donβt let its size fool you β this compact roller is a workhorse for small boat trailers.
Related
Frequently Asked Questions (FAQ)
- Q: What spindle size does this roller fit?
A: It has a 17mm bore, perfect for 16mm spindles commonly used in boat trailers. - Q: Can I use this with an aluminium boat?
A: Itβs best suited for fibreglass boats. For aluminium hulls, ensure the keel shape allows for rubber contact. - Q: Is it UV-stable?
A: Yes β the rubber is designed to withstand sun exposure without cracking or degrading. - Q: Is this a full kit?
A: No, this listing includes the roller only. Brackets and spindles are sold separately.
Usage Guide
Installing your Ark CRBK118X16 roller is easy and quick:
- Slide onto a 16mm spindle (not included).
- Secure between trailer brackets with clips or locking pins.
- Ensure proper alignment with your boatβs keel.
- Rinse clean after saltwater exposure to maintain performance.
Evaluation & Recommendation
This compact roller is ideal for smaller boats and tighter trailer layouts where standard 8″ or 6″ rollers might not fit.
β Recommended If You:
- Use a fibreglass boat under 4.5 metres
- Need a shorter roller for tight bracket space
- Want lightweight, UV-stable support
- Use a 16mm spindle
β Not Ideal If You:
- Have a heavy vessel that needs wide or multi-roller systems
- Use aluminium hulls with sharp-edged keels
- Are looking for a roller kit with bracket/spindle included
Compact but capable β CRBK118X16 is perfect for precision setups on lighter trailers.
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π³ Parallel Keel Rollers
| Product | Length | Width | Bore | Material | Hardness | Use | Advantages | Link |
|---|---|---|---|---|---|---|---|---|
| 12″ Parallel 26mm | 298mm | 75mm | 26mm | Black Rubber | 85 Duro | Large boats | Heavy-duty load support | View |
| 12″ Parallel 18mm | 298mm | 75mm | 18mm | Black Rubber | 85 Duro | Medium trailers | Balanced support | View |
| 8″ Parallel 26mm | 204mm | 75mm | 26mm | Black Rubber | 85 Duro | Mid-size trailers | Non-marking, stable | View |
| 8″ Parallel 20mm | 204mm | 75mm | 20mm | Black Rubber | 85 Duro | General trailer | UV stable, easy install | View |
| 8″ Parallel 17mm | 204mm | 75mm | 17mm | Black Rubber | 85 Duro | Fibreglass boats | Non-marking, UV-proof | View |
πΎ Dog Bone Rollers
| Product | Length | Width | Bore | Material | Hardness | Use | Advantages | Link |
|---|---|---|---|---|---|---|---|---|
| 12″ Dog Bone 26mm | 297mm | 82mm | 26mm | Black Rubber | 85 Duro | Large hulls | Centres boat naturally | View |
| 8″ Dog Bone 16mm | 200mm | 70mm | 16mm | Black Rubber | β | Light trailers | Compact & tapered | View |
π¬ Cotton Reel / Round Type
| Product | Length | Width | Bore | Material | Hardness | Use | Advantages | Link |
|---|---|---|---|---|---|---|---|---|
| 8″ Cotton Reel 20mm | 192mm | 75mm | 20mm | Black Rubber | 85 Duro | General trailer | Firm grip, compact | View |
| 2.5″ Round Cap 17mm | 78mm | β | 17mm | Black Rubber | 85 Duro | End bumpers | Lightweight edge guard | View |
πͺ Vee & Bow Rollers
| Product | Length | Width | Bore | Material | Hardness | Use | Advantages | Link |
|---|---|---|---|---|---|---|---|---|
| 8″ Vee Roller 19.5mm | 198mm | 68mm | 19.5mm | Black Rubber | 85 Duro | Hull centering | Natural alignment | View |
| 4″ Jet Ski Bow 14mm | 100mm | 70/55mm | 14mm | Black Rubber | 85 Duro | Jet Ski | Small bow cradle | View |
π Special Materials (PVC / Short Sizes)
| Product | Length | Width | Bore | Material | Hardness | Use | Advantages | Link |
|---|---|---|---|---|---|---|---|---|
| KNOTT PVC Roller | 298mm | 95/61mm | 17mm | PVC + Aluminium core | β | Non-marking pro | Perfect for white hulls | View |
| Short Rubber 102mm | 102mm | 59.5mm | 16.5mm | Black Rubber | β | Mini trailers | Non-marking & compact | View |

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