Iuhu PT Ti
Iuhu PT Titanium Frame
Titanium Dirt Jump & Pumptrack Hardtail — PT
“Iuhu” means Pure Joy in the Taiwanese indigenous Bunun language, pronounced “YooHoo.” The Iuhu PT Ti is our titanium dirt jump and pumptrack hardtail — offered in versions per wheel size (26″ and 27.5″), each its own frame design, for a dirt jump fork (90–100 mm on 26″, 100–120 mm on 27.5″).
The Iuhu PT Ti is a titanium hardtail for pumptrack, dirt jump and trail shredding, built for the hardtail lovers and purists. 3AL-2.5V seamless titanium tubing, TIG-welded in Taiwan. Each wheel size (26″, 27.5″) has its own frame design; fork travel 90–100 mm (26″) or 100–120 mm (27.5″), dirt jump forks only. Titanium’s natural damping, fatigue resistance and corrosion resistance make this a frame you can ride hard for many years. 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 · dirt jump / pumptrack / trail |
| Geometry | Specific per version (26″ / 27.5″) — charts per version follow |
| Bottom Bracket | BSA 73 mm threaded shell, ISCG tabs |
| Rear Suspension | None — hardtail (no rear shock) |
| Fork Compatibility | 26″: 90–100 mm · 27.5″: 100–120 mm — dirt jump forks only (DVO, or Öhlins RXF 36 DJ = 90 mm, supplied by Dirtlab) |
| Wheels | 26″ or 27.5″ — each wheel size its own frame design |
| Rear Spacing | 142 × 12 mm |
| Sizes | XS / S / M / L / XL / XXL (24″, 26″ and 27.5″ versions) — 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 frame you want to ride every day, in every condition, for years. 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 all-day rides.
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.
Riding: Pumptrack, Dirt Jump, Trail
The PT is a hardtail for pumptrack laps, dirt jump sessions and trail shredding. With a dirt jump fork (90–100 mm on 26″, 100–120 mm on 27.5″) it stays playful on the pump track and holds its line on rough trails.
Titanium’s natural damping takes the sting out of hard landings and rough trails.
Built Simple
No rear shock, no rear pivots: the PT puts every pedal stroke into the rear wheel and needs almost no maintenance. Titanium’s stiffness-to-weight ratio keeps power transfer sharp out of every berm.
- Hardtail: no rear shock and no rear pivots to maintain
- Versions for 26″ and 27.5″ wheels — each its own frame design
- Fork travel 90–100 mm (26″) or 100–120 mm (27.5″) — dirt jump forks from DVO and Öhlins (Öhlins RXF 36 DJ = 90 mm), supplied by Dirtlab
- 142 × 12 mm rear axle, BSA 73 mm bottom bracket with ISCG tabs
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.
| Attribute | Iuhu PT 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 (24″, 26″, 27.5″) + custom | S / M / L |
The DIRTLAB Formula
Versions per Wheel Size
One frame design per wheel size (26″, 27.5″) — not one frame stretched across wheel sizes. Geometry charts per version follow.
Titanium Process
Double-butted aerospace-grade tubing, TIG-welded by specialists, designed to last decades.
S-Volve Sizing
Built to order: S / M / L (26″ / 27.5″) — plus full custom geometry for riders who need it. See our custom frame page.
Make It Yours
- Sizing: XS / S / M / L / XL / XXL (24″, 26″ and 27.5″ versions), plus full custom geometry for riders outside the range or with specific fit requirements.
- Travel: Hardtail — no rear travel. Compatible with dirt jump forks: 90–100 mm (26″) or 100–120 mm (27.5″) (DVO, or Öhlins RXF 36 DJ = 90 mm, supplied by Dirtlab).
- Wheels: 26″ or 27.5″ — one frame design per wheel size.
- 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
- 142 × 12 mm rear spacing
The Iuhu Family
The Iuhu platform comes in multiple configurations for different riding styles:
Iuhu PT Ti
Titanium dirt jump / pumptrack hardtail
26 / 27.5″ · DJ fork 90–100 / 100–120 mm
You are here
Iuhu LT Ti
Titanium hardtail · extreme trail / bike park
150 mm fork (140–160 mm)
From USD 1,990 (≈ €1,809 incl. VAT)
Iuhu CP
Carbon enduro frame
145–165 mm rear travel
From USD 3,190 (≈ €2,890 incl. VAT)
Frequently Asked Questions
What is the Iuhu PT Ti?
How does it differ from the Iuhu LT Ti?
What Ti grade is the frame?
Can I order custom geometry?
What drivetrain works?
Is suspension setup different from the LT?
What is the expected frame life?
What is the warranty?
What finishes are available?
How long does an order take?
Frequently Asked Questions
What is the Iuhu PT Ti?
A titanium hardtail frame (no rear suspension) for pumptrack, dirt jump and trail riding, in versions for 26″ and 27.5″ wheels and a dirt jump fork (90–100 mm on 26″, 100–120 mm on 27.5″). 3AL-2.5V titanium, TIG-welded in Taiwan, with a 5-year frame warranty.
What does PT stand for?
The PT is the pumptrack / dirt jump member of the Iuhu family — a titanium hardtail, offered per wheel size (26″, 27.5″), for a dirt jump fork (90–100 mm on 26″, 100–120 mm on 27.5″).
Why titanium instead of carbon?
Titanium provides natural vibration damping, is highly fatigue-resistant (very long fatigue life below its fatigue limit), corrosion immune, and crash resilient. For riders who want a frame for many years, titanium is a strong long-term choice. Carbon is lighter; titanium is very durable.
What does the warranty cover?
Production defects in the titanium frame, for the original owner, for 5 years from delivery. See our warranty page for full details.
What sizes are available?
XS / S / M / L / XL / XXL (24″, 26″ and 27.5″ versions), plus full custom geometry. Titanium frames are built to order — use our S-Volve sizing tool to find your size.
How much travel can I run?
The PT is a hardtail, so there is no rear travel. Fork travel is 90–100 mm (26″) or 100–120 mm (27.5″): dirt jump forks from DVO and Öhlins (Öhlins RXF 36 DJ = 90 mm) that Dirtlab can supply.
Which wheel sizes are available?
The PT is built in 26″ and 27.5″ versions — each its own frame design, with the same wheel size front and rear.
Is a Pinion gearbox option available?
Yes. 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. 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 does the PT Ti compare to the LT Ti?
Same titanium construction, same 5-year warranty, both hardtails. The PT is the dirt jump / pumptrack frame (26″ / 27.5″; dirt jump fork 90–100 mm on 26″, 100–120 mm on 27.5″); the LT Ti is built for extreme trail and bike park riding (150 mm fork (range 140–160 mm)).
Build Your Iuhu PT Ti
From USD 1,990 (≈ €1,809 incl. VAT) • 5-year warranty • 26 / 27.5″ versions • Free worldwide DDP shipping
Made at the Source
This titanium dirt jump / pumptrack 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.