Swinging side roller for boat trailers — 14 configurations (Straight / Raised / Double-bracket)
€73,95
incl. VAT 25.5%
Made in Italy
Swinging side roller for boat trailers — protect the hull as you launch and recover. Black rubber rollers on a steel bracket, mounted to the trailer's side support frame.
- Version — Straight (entry-level), Raised (more clearance), or Double-bracket (heavy load, swinging or fixed)
- Tube size — 30 mm (small trailers) or 40 mm (standard)
- Roller count + diameter — 2 / 4 / 6 / 8 rollers, Ø100 or Ø120 mm
- 14 configurations covering all common trailer types — from 5 m runabout to 9 m cruiser
Sizing tip: More rollers + larger Ø = better hull support but more cost. Match to your trailer's existing roller pattern when replacing; for new trailers, count one roller per metre of waterline as a baseline.
Select model
Straight • 40 mm tube • 4 × Ø100 mm rollers
€73,95
Straight • 30 mm tube • 2 × Ø100 mm rollers
€53,06
Straight • 40 mm tube • 2 × Ø100 mm rollers
€54,00
Raised • 40 mm tube • 2 × Ø100 mm rollers
€60,15
Raised • 40 mm tube • 4 × Ø100 mm rollers
€88,90
Double bracket (fixed) • 40 mm tube • 2 × Ø120 mm rollers
€38,90
Double bracket (swinging) • 40 mm tube • 2 × Ø120 mm rollers
€46,95
Raised • 40 mm tube • 6 × Ø100 mm rollers
€123,23
Raised • 40 mm tube • 8 × Ø100 mm rollers
€134,50
Straight • 30 mm tube • 2 × Ø120 mm rollers
€52,99
Straight • 40 mm tube • 2 × Ø120 mm rollers
€54,12
Raised • 40 mm tube • 2 × Ø120 mm rollers
€60,15
Straight • 40 mm tube • 4 × Ø120 mm rollers
€95,90
Raised • 40 mm tube • 4 × Ø120 mm rollers
€94,90
In stock — ships within 1–2 business days
Free shipping on orders over 100€ · Free returns within 14 days
Use cases
Trailer roller replacement
Trailer rollers wear and crack over 5-7 seasons of immersion. Direct replacement for most Osculati and generic side rollers — match by tube size + roller count.
Trailer upgrade
Going from 2-roller to 4-roller per side dramatically improves hull support and launch ease, especially for larger boats. Worth the upgrade on any cruiser trailer.
New trailer build
Building a custom trailer or restoring an old one? Pick configurations to match your boat's hull profile. Heavier boats = more rollers + larger Ø.
Specifications
| Configuration | Straight • 40 mm tube • 4 × Ø100 mm rollers |
| Tube size | 40 mm |
| Roller Ø | Ø100 mm |
| Brand | Osculati |
| Type | Side roller for boat trailers |
| Material | Steel bracket + black rubber rollers |
| Versions | Straight, Raised, Double-bracket (fixed or swinging) |
| Tube sizes | 30 mm or 40 mm |
| Roller diameter | 100 mm or 120 mm |
| Roller count | 2, 4, 6 or 8 rollers per bracket |
| Made in | Italy |
Installation guide
1
Measure the trailer tube
Most boat trailers use 30 mm or 40 mm square tube for side supports. Measure yours before ordering — wrong size won't clamp.
2
Pick the version
Straight: standard bracket, basic protection. Raised: extra height for hulls with high freeboard at the trailer support point. Double-bracket: heavy hulls (>9 m), distributes load across two roller assemblies.
3
Pick roller count and Ø
More rollers + larger Ø = gentler hull support, but more cost. 2 × Ø100 for small runabouts; 4-6 × Ø100 for cruisers; 8 × Ø100 or 4 × Ø120 for heavier boats.
4
Mount to trailer
Bracket clamps to the trailer's side tube with U-bolts (sold by the trailer maker). Tighten cross-pattern. Adjust roller height to support the hull at chine.
5
Test and adjust
Launch and recover at the local ramp. If hull rocks or scrapes, raise or lower the rollers. Adjust angle so rollers contact the hull squarely.
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