Black Seal: the pressure stays in
Designed to fix the usual TPU failures (micro air leaks, fatigue at the valve joint and seam failures). Reinforcement at the valve base and compression control at the joint.
Black Seal Road Bike TPU Inner Tube 700c 18-32C
The IMPALAPRO Black Seal is a 700c TPU inner tube for road bikes, 48 g of premium 0.35 mm TPU with a reinforced metal Presta valve and a sealed base for better pressure retention. Far lighter than a butyl bike tube and tougher than ultralight TPU tubes.
Specifications
- MATERIAL
- Premium TPU
- WALL THICKNESS
- 0.35 mm
- WEIGHT
- Approx. 48 g per tube
- WHEEL
- 700C (28") · ETRTO 622
- COMPATIBLE TIRES
- 700x18C to 700x32C
- VALVE
- 100 % metal Presta, anti-corrosion anodized
- VALVE CORE
- Removable
- VALVE LENGTH
- 45 / 65 / 85 mm
- VALVE BASE
- Structural reinforcement + pre-fitted black rubber ring
- TUBES PER PACK
- 1 or 2
Frequently asked questions
700C (28") wheels with 700x18C to 700x32C tires. It replaces a 700x25c, 700x28c or 700x32 tube.
Presta valve in 45, 65 or 85 mm, in packs of 1 or 2 tubes.
It uses premium 0.35 mm TPU, a 100 % metal valve, reinforcement at the valve base and compression control at the joint. It weighs about 48 g, much less than a butyl tube (150–200 g), but it's tougher than ultralight TPU tubes.
Yes. The Presta valve is 100 % metal, with a removable core and an anti-corrosion anodized finish.
Pre-inflate the tube to 20–30 % (max. 6 PSI) so it takes shape, insert the valve into the rim, place the tube evenly inside the tire and finish inflating to the recommended pressure. Don't inflate it outside the tire or use metal tire levers.
For most riders, yes. At about 48 g against 150–200 g for butyl, you cut rotating weight and rolling resistance. Black Seal adds the reinforcement ultralight TPU tubes lack at the valve base and the joint, so the pressure stays in.
On weight and rolling resistance, yes: about 48 g against 150–200 g for a butyl tube. Black Seal adds reinforcement at the valve base and the joint, where ultralight TPU tubes tend to fail.
Complete your machine.
Engineering designed to work together.
