Iuhu LT Ti
Titanium Enduro Frame — Long Travel
“Iuhu” means Pure Joy in the Taiwanese indigenous Bunun language, pronounced “YooHoo.” The Iuhu LT Ti brings that joy in titanium — a long-travel enduro frame built to outlast every trail, every season, every rider.
The Iuhu LT Ti is our titanium long-travel enduro frame. 3AL-2.5V aerospace-grade titanium, TIG-welded in Taiwan, with the same G-Volve geometry and K-Volve kinematics as the carbon Iuhu platform. Titanium’s natural vibration damping adds compliance that carbon cannot match — critical on long, rough descents. Lifetime warranty. Factory to rider, no middlemen.
At a Glance
| Frame | 3AL-2.5V Titanium, TIG-welded in Taiwan |
| Suspension | Full suspension — Long Travel |
| Head Angle | 63.5° |
| Seat Tube Angle | 77.8° |
| Rear Travel | 150 / 160 / 170 mm |
| Fork Compatibility | 160–180 mm |
| Wheels | 29″/29″ or 29″/27.5″ mullet |
| 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 | Lifetime frame warranty |
| Price | From $2,189 USD / €1,990 EU (frame) — free worldwide DDP shipping |
Why Titanium
Titanium is the ideal material for a long-travel enduro frame 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-Proof
Unlike aluminium, titanium has a true fatigue limit. Below its threshold stress, the frame will not develop fatigue cracks — ever. That is why we warranty it for life.
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: Long Travel Enduro
The Iuhu LT Ti is built for steep, rough, sustained descents. Up to 170 mm of rear travel paired with 160–180 mm forks gives you a proper enduro platform with the compliance advantage of titanium.
63.5° head angle provides 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 77.8° seat tube angle positions you efficiently over the pedals.
- Tuned anti-squat keeps suspension firm under power without locking out
- Titanium’s damping reduces fatigue on long climbs over rough terrain
- Same G-Volve geometry as the carbon Iuhu platform — proven on every terrain
- No paint to chip, no clearcoat to maintain — ride hard, ride often
Lifetime Warranty
Every DIRTLAB titanium frame comes with a lifetime warranty against manufacturing defects. Titanium does not fatigue like aluminium or degrade like carbon. We build frames that outlive trends — and we stand behind them without an expiry date.
Carbon frames carry a 5-year warranty. Titanium frames carry a lifetime warranty. The material earns it. Read full warranty →
Titanium vs Carbon
Two great materials, different philosophies. Here is how they compare for long-travel enduro.
| 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 | Infinite (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 | Lifetime | 5 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. 63.5° head angle × 77.8° STA. Balanced for speed on descents and efficient power transfer on climbs. Each size proportionally scaled, not just stretched.
K-Volve Kinematics
Anti-squat and anti-rise tuned for consistent suspension behaviour — firm under power, supple over impacts. Same performance across all sizes.
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.
Geometry chart — coming soon
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: Three rear travel options (150/160/170 mm). Compatible with 160–180 mm forks.
- Wheels: 29″/29″ or mullet 29″/27.5″.
- 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 Long Travel
Lifetime warranty
You are here
Iuhu CP
Carbon Concentric Pivot
145–165 mm rear travel
From $3,179 USD / €2,890 EU
Iuhu PT Ti
Titanium PT
Versatile trail platform
From $2,189 USD / €1,990 EU
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 long-travel enduro frame using the same G-Volve geometry and K-Volve kinematics as the carbon Iuhu platform. 3AL-2.5V aerospace-grade titanium, TIG-welded in Taiwan, with a lifetime warranty.
Why titanium instead of carbon for enduro?
Titanium provides natural vibration damping that carbon cannot match, is fatigue-proof (infinite fatigue life below threshold stress), corrosion immune, and crash resilient — it dents rather than shattering. For aggressive enduro riding where durability matters, titanium is the superior long-term choice.
What does the lifetime warranty cover?
The lifetime warranty covers manufacturing defects in the titanium frame for the original owner. Titanium does not fatigue like aluminium or degrade like carbon, so we stand behind it without an expiry date. 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 rear end accepts 150, 160, or 170 mm of travel. Fork compatibility is 160–180 mm. This range covers aggressive trail through full enduro and light freeride.
Can I run it as a mullet (mixed wheel)?
Yes. The Iuhu LT Ti supports 29″/29″ or 29″/27.5″ mullet configurations.
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. Standard sizes typically ship within 4–6 weeks. Custom geometry frames may take 6–8 weeks. Contact us for current lead times.
How does it compare to the carbon Iuhu models?
Same geometry and kinematics, different material philosophy. Carbon is lighter. Titanium is more durable, naturally damped, corrosion-proof, and carries a lifetime warranty vs 5 years. See the comparison table above for a full breakdown.
Build Your Iuhu LT Ti
From $2,189 USD / €1,990 EU • Lifetime warranty • XS–XXL + custom sizing • Free worldwide DDP shipping
360° View & Gallery
High-resolution imagery and 360-degree viewer coming soon. Contact sales@bikelab-inc.com for current frame images.
See It in Action
Made at the Source
This titanium light-trail 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. First-owner only.