TOOPRE M6 Titanium Alloy Concave-Convex Caliper Spacer Washer – TC4 Aircraft Grade Gr5 Metal Gasket, PVD Vacuum Coating Altitude Trim Height-Bump Shims for MTB Road Bike Disc Brake Seats (4-Piece Premium Box Set)
Ultimate Material Quality: Engineered from genuine TC4 (Gr5) Titanium Alloy for uncompromised strength and exceptional weight reduction.Smart Concave-Convex Design: Features a unique spherical alignment architecture to automatically trim and correct assembly deviation, ensuring uniform brake caliper pressure.Stunning PVD Finish: Coated via advanced Vacuum PVD Technology to create an ultra-hard, fade-resistant, and corrosion-proof surface in 4 striking colorways.Premium Retail Packaging: Comes in an exquisite EVA-lined metal tin box (2 pairs/4 pieces per set)—perfect for high-end boutique display or direct gifting.
Descriptions
Maximize your braking precision and drop critical grams with the TOOPRE Premium M6 Titanium Alloy Disc Brake Spacer Set. Specially developed for performance-oriented mountain (MTB) and road cyclists, these concave-convex altitude washers provide the perfect solution for fine-tuning caliper height and position. Unlike standard flat steel washers, our multi-angle spherical mating surface eliminates stress concentration and compensates for slight frame or fork mounting tolerances.
Key Features & Technological Highlights
- 01 | Ultra-Lightweight & Tough TC4 Titanium
Crafted exclusively from virgin TC4 (Grade 5) titanium alloy ingots. We reject secondary smelting or lower-grade scrap. Experience incredible structural toughness, great mechanical properties, and maximum fatigue resistance while shedding unnecessary weight. - 02 | Advanced Vacuum PVD Coated Finishes
The surface is treatment-hardened via physical vapor deposition (PVD). Compounded layers including TiN and TiAlCN are fused to the metal shell, dramatically upgrading surface hardness while delivering rich, metallic luster that will not fade, peel, or rust. - 03 | Smart Deflection Compensation (Altitude Trim)
The hemispherical concave-and-convex structure acts as a dynamic ball joint. When locking your disc brake caliper, the upper and lower rings self-adjust to match the bolt’s clamping vector, avoiding uneven pressure on the brake adapter and preventing pad drag. - 04 | Exquisite Presentation Packaging
Each set is nested securely inside a high-density customized EVA protective foam tray and housed inside a sleek TOOPRE branded metal window tin. Perfect for protecting threads and finishes during international transit.
Technical Specifications
| Parameter | Specification Details |
|---|---|
| Brand | TOOPRE (Authentic brand authorization & certificates available) |
| Product Name | M6 Disc Brake Seat Height-Bump Washer (Concave-Convex Gasket) |
| Material Rating | TC4 (Gr5) Titanium Alloy |
| Primary Application | Disc brake adapter altitude trim, caliper height spacing, M6 bolt reinforcement |
| Assembled Height | 5.5 mm (Total combined height per pair) |
| Outer Diameter | 10.0 mm |
| Inner Diameter | 6.1 mm (Clearance optimized for standard M6 bolts) |
| Single Piece Height | 3.0 mm (Per single concave or convex ring) |
| Total Net Weight | Approx. 36.62g (Includes 4 washers + metal container box) |
| Available Colors | Colourful (Rainbow) / Gold / Black / Titanium (Silver) |
| Box Dimensions | 9.1 cm × 6.3 cm × 1.8 cm |
| Quantity Per Set | 2 Pairs / 4 PCS Per Premium Box |
📦 What’s in the Box?
- 2x Hemispherical Concave Washers
- 2x Hemispherical Convex Washers
- 1x Customized EVA Foam Tray insert
- 1x TOOPRE Premium Metal Tin Container
(Note: Disc brake calipers, adapters, and M6 fastening bolts shown in diagrammatic photos are for application reference only and are sold separately).
