M6 Titanium Bolt Upgrade Guide: Full & Partial Thread Applications by Size
Whether you're doing a full custom build or just replacing a few rusted OEM fasteners, M6 titanium bolts are among the most useful upgrades for any motorcycle owner. From their impressive strength-to-weight ratio to unmatched corrosion resistance, these bolts offer performance, reliability, and a clean aesthetic all in one.
With sizes ranging from 8mm to 30mm in full thread, and 35mm to 120mm in partial thread, how do you know which one to choose for your bike?
This guide breaks down the most common use cases by size, helping you make the right upgrade with confidence.
🔩 Why M6 Titanium Bolts?
M6 x 1.0mm bolts are widely used on both Japanese and European motorcycles, making them an ideal candidate for replacement or upgrades. Titanium bolts offer:
- 45% less weight than steel
- Zero rust—even in coastal or rainy environments
- Higher tensile strength (Grade 5 Ti = ~950 MPa)
- Sleek look with optional anodized finish
- Easy DIY install with hex key and torque spec
📏 M6 Bolt Sizes & Where They Fit
M6 titanium bolts come in two thread types:
- Full Thread (8mm to 30mm): Ideal for fairings, fuel tanks, and trim pieces.
- Partial Thread (35mm to 120mm): Designed for structural or deeper mount locations like subframes and engine supports.
Below are the most common upgrade scenarios based on bolt length and thread type:
✅ M6 x 8–12mm (Full Thread)
- Windscreen bolts (especially on sportbikes)
- Fairing corner mounts (Kawasaki, Yamaha)
- License plate brackets
✅ M6 x 15–20mm (Full Thread)
- Radiator side cover mounts
- Handlebar control housing bolts
- Bar end mirrors (some models)
✅ M6 x 20mm
- Side fairings & belly pans
- Tail tidy kits / LED indicator brackets
- Fuel tank mounting tabs
✅ M6 x 25–30mm (Full Thread)
- Frame cover bolts
- Underseat panel screws
- Some foot peg bracket mounts
✅ M6 x 35–60mm (Partial Thread)
- Upper subframe mounts (especially for naked bikes)
- Engine case side bolts
- Longer fairing stays
✅ M6 x 65–120mm (Partial Thread)
- Rear shock reservoir mounts (e.g., KTM, Husqvarna)
- Rearset to subframe mounting (track bikes)
- Specialized engine hanger bolts (custom builds)
🛠️ Installation Tips
- Use Anti-Seize: Prevent galling with a small dab on the threads.
- Torque Wisely: Follow manufacturer specs—most M6 bolts tighten between 7–10Nm.
- Check Clearance: For longer bolts (35mm+), ensure no contact with wiring or frames.
- Loctite Optional: Use medium-strength threadlocker for high-vibration zones.
⚙️ Compatible Models
SpartsBolts M6 titanium bolts have been tested on bikes including:
- Yamaha MT-07 / R6 / R1
- Honda CBR500 / CB650R
- Kawasaki Z900 / Ninja 400
- Ducati Monster / Panigale
- KTM Duke / RC series
- Suzuki GSX-R, SV650
- Triumph Street Triple, Daytona
If you're unsure what length you need, send us your make, model, and part location—our team can match it.
🎨 Finish Options
All our M6 titanium bolts are available in:
- Raw Silver
- Rainbow (Anodized)
- Blue / Purple / Gold (Limited runs)
Perfect for riders who want to customize their bike’s look while shedding weight.
🧰 Related Products
Bundle and save by adding multiple sizes to your cart.
Final Thoughts
Titanium M6 bolts aren’t just for superbikes—they’re a smart, functional upgrade for any rider who cares about durability, weight, and detail. With multiple lengths and universal compatibility, it’s never been easier to improve your motorcycle’s longevity and look.
Need help choosing? Message our support team or check out our installation guide for visual examples.