Iuhu LT Ti
Titanium Hardtail Frame — LT
“Iuhu” means Pure Joy in the Taiwanese indigenous Bunun language, pronounced “YooHoo.” The Iuhu LT Ti brings that joy in titanium — a titanium hardtail built for many seasons of hard riding.
The Iuhu LT Ti is our titanium hardtail for extreme trail and bike park riding, built for a 150 mm fork (range 140–160 mm). 3AL-2.5V aerospace-grade titanium, TIG-welded in Taiwan. No rear suspension: titanium’s natural vibration damping adds compliance that carbon cannot match — welcome on long, rough descents. 5-year warranty. Factory to rider, no middlemen.
At a Glance
| Frame | 3AL-2.5V Titanium, TIG-welded in Taiwan |
| Suspension | Hardtail — no rear suspension |
| Head Angle | Coming — final drawings in progress |
| Seat Tube Angle | Coming — final drawings in progress |
| Rear Suspension | None — hardtail (no rear shock) |
| Fork Compatibility | 140–160 mm (150 mm base) |
| Wheels | 29″ |
| Rear Spacing | 148 × 12 mm (Boost) |
| Sizes | XS / S / M / L / XL / XXL — custom sizing available |
| Derailleur Hanger | UDH (Universal Derailleur Hanger) |
| Finish | Raw brushed titanium — no paint needed |
| Warranty | 5-year frame warranty |
| Price | From USD 1,990 (≈ €1,809 incl. VAT) (frame) — free worldwide DDP shipping |
Why Titanium
Titanium is the ideal material for a hardtail that gets ridden hard, day after day. Where carbon excels in stiffness-to-weight, titanium excels in durability, vibration damping, and longevity.
Natural Vibration Damping
Titanium’s crystalline structure absorbs high-frequency trail chatter that carbon passes straight through. Less fatigue, more control on long descents.
Fatigue-Resistant
Unlike aluminium, titanium alloys have a true fatigue limit: kept below it, the material resists fatigue cracking for a very high number of load cycles. We back every titanium frame with a 5-year warranty.
Corrosion Immune
Titanium forms a self-healing oxide layer. No paint needed. Raw brushed finish that resists sweat, mud, salt, and trail debris — and only gets better with age.
Crash Resilient
Titanium dents rather than shattering. A rock strike that would crack a carbon frame leaves a cosmetic dent on Ti — ride on, no structural worry.
Descending: Gravity Hardtail
The Iuhu LT Ti is a hardtail built for steep, rough trails and the bike park. A 150 mm fork up front (140–160 mm) and a titanium rear end give you a capable gravity hardtail with the compliance advantage of titanium.
A slack head angle gives stability at speed. Titanium’s natural damping smooths out the chatter that makes long runs fatiguing — your arms and legs stay fresher, deeper into the descent.
Climbing: Titanium Efficiency
Titanium’s stiffness-to-weight ratio keeps power transfer sharp under hard accelerations and sustained climbs. The seat tube angle keeps you efficiently over the pedals.
- Hardtail: no rear shock and no rear pivots to maintain
- Titanium’s damping reduces fatigue on long climbs over rough terrain
- Progressive geometry with a rider-centred gravity approach
- No paint to chip, no clearcoat to maintain — ride hard, ride often
5-Year Warranty
Every DIRTLAB titanium frame comes with a 5-year warranty against manufacturing defects. Titanium resists fatigue very well and is highly corrosion-resistant. We build frames that outlive trends — and we stand behind them with a 5-year warranty and crash replacement for the life of the frame.
Carbon frames carry a 3-year warranty, titanium frames a 5-year warranty. Read full warranty →
Titanium vs Carbon
Two great materials, different philosophies. Here is how they compare for hard trail riding.
| Attribute | Iuhu LT Ti | Iuhu (Carbon) |
| Frame Material | 3AL-2.5V Titanium | High-modulus Carbon Fibre |
| Vibration Damping | Excellent — natural to material | Moderate — depends on layup |
| Fatigue Life | Very high (below fatigue limit) | Progressive degradation over time |
| Corrosion Resistance | Immune — self-healing oxide | Resistant (UV/impact sensitive) |
| Crash Resilience | Dents, does not shatter | Can crack from impact |
| Weight | Moderate | Lightest option |
| Warranty | 5 years | 3 years |
| Finish | Raw brushed titanium | Paint / clearcoat |
| Custom Sizing | XS–XXL + full custom | S / M / L |
The DIRTLAB Formula
G-Volve Geometry
Long, not too low, and slack. Balanced for speed on descents and efficient power transfer on climbs. Each size proportionally scaled, not just stretched.
Titanium Process
Double-butted aerospace-grade tubing, TIG-welded by specialists, designed to last decades.
S-Volve Sizing
Titanium frames are built to order in XS through XXL — plus full custom geometry for riders who need it. Use our S-Volve tool to find your perfect fit.
Make It Yours
- Sizing: XS / S / M / L / XL / XXL standard sizes, plus full custom geometry for riders outside the range or with specific fit requirements.
- Travel: Hardtail — no rear travel. Compatible with 140–160 mm forks (150 mm base).
- Wheels: 29″.
- Finish: Raw brushed titanium (standard). Custom anodising or logo engraving available on request.
- Dropouts: UDH standard. Pinion gearbox compatible option available.
Frame Includes
- 3AL-2.5V titanium frame (TIG-welded)
- Headset
- UDH hanger (Universal Derailleur Hanger)
- Internal cable routing
- Rear axle
- 148 × 12 mm Boost spacing
The Iuhu Family
The Iuhu platform comes in multiple configurations for different riding styles:
Iuhu LT Ti
Titanium hardtail
150 mm fork (140–160 mm)
You are here
Iuhu CP
Carbon enduro frame
145–165 mm rear travel
From USD 3,190 (≈ €2,890 incl. VAT)
Iuhu PT Ti
Titanium dirt jump / pumptrack hardtail
26 / 27.5″ versions
From USD 1,990 (≈ €1,809 incl. VAT)
Frequently Asked Questions
What is the Iuhu LT Ti?
Why Grade 9 titanium and not Grade 5?
How much does the frame weigh?
Is custom geometry available?
How are the tubes welded?
What is the surface finish?
What is the expected frame life?
What is the lead time for a new order?
How do I care for a Ti frame?
Is the Iuhu LT Ti frame covered by warranty?
Frequently Asked Questions
What is the Iuhu LT Ti?
A titanium hardtail (no rear suspension) for extreme trail and bike park riding, built for a 150 mm fork (range 140–160 mm). 3AL-2.5V aerospace-grade titanium, TIG-welded in Taiwan, with a 5-year frame warranty.
Why titanium instead of carbon for enduro?
Titanium provides natural vibration damping that carbon cannot match, is highly fatigue-resistant (very long fatigue life below its fatigue limit), corrosion immune, and crash resilient — it dents rather than shattering. For aggressive enduro riding where durability matters, titanium is a strong long-term choice.
What does the warranty cover?
The 5-year warranty covers production defects in the titanium frame for the original owner. Titanium resists fatigue very well, and we stand behind it with a 5-year warranty and crash replacement for the life of the frame. See our warranty page for full details.
What sizes are available?
XS through XXL in standard sizing. Because titanium frames are built to order, we also offer full custom geometry for riders outside the standard range or with specific fit requirements. Use our S-Volve sizing tool to find your size.
How much travel can I run?
The LT is a hardtail, so there is no rear travel. Fork travel: 150 mm base, range 140–160 mm.
Which wheel size does it use?
The Iuhu LT Ti is built for 29″ wheels (29 × 2.4–2.6″ tyres).
Is a Pinion gearbox option available?
Yes. The Iuhu LT Ti is available with a Pinion gearbox mount as a factory option. Sealed internal gearing pairs perfectly with titanium’s low-maintenance philosophy.
Does the raw titanium finish need maintenance?
No. Titanium forms a self-healing oxide layer that resists corrosion from sweat, mud, salt, and trail debris. No paint, no clearcoat, no touch-ups. Wash it and ride.
What does DDP shipping mean?
Delivered Duty Paid. The price you see is the price you pay — we handle all import duties, taxes, and customs clearance. Free worldwide shipping. No surprise fees at your door.
How long is the lead time?
Titanium frames are built to order. Made to order: 60 days from cleared 50 % deposit, balance before shipping. Custom geometry adds 2-3 weeks.
How does it compare to the carbon Iuhu models?
A different bike: the LT Ti is a titanium hardtail, the Iuhu CP is our carbon platform. Carbon is lighter. Titanium is more durable, naturally damped, corrosion-proof, and carries a 5-year warranty vs 3 years. See the comparison table above for a full breakdown.
Build Your Iuhu LT Ti
From USD 1,990 (≈ €1,809 incl. VAT) • 5-year warranty • XS–XXL + custom sizing • Free worldwide DDP shipping
Made at the Source
This titanium hardtail frame is built in our own facility in Tanzi District, Taichung — the global centre of carbon-fibre and titanium bicycle manufacturing. We are the factory, not the brand on the sticker.
No outsourcing, no badged-in OEM, no middlemen. Frame kit to your door, DDP. 5-year frame warranty, original owner.