Panaracer TPU Purple Lite inner tube 700x32/47 85 mm

Panaracer TPU Purple Lite inner tube 700x32/47 85 mm

PANARACER PURPLE LITE TPU 700 × 32–47C Inner Tube – Presta 85 mm, Ultralight 45 g, Purple (TW732-47F85-PL)

PANARACER PURPLE LITE TPU 700 × 32–47C is an ultralight bicycle inner tube designed for gravel, all-road, and cyclocross bikes. It is made from advanced thermoplastic polyurethane TPU, combining low weight, elasticity, and strength. Weighing just 45 grams, it serves as an excellent alternative to standard butyl inner tubes.

This version features an 85 mm Presta valve, making it suitable for wheels with deeper rim profiles. Thanks to its exceptionally compact folded size, it is ideal not only for regular use but also as a lightweight spare inner tube for long rides, gravel races, and bikepacking trips.

PURPLE LITE – Ultralight TPU Technology

The PURPLE LITE model uses advanced TPU (thermoplastic polyurethane) material, offering an outstanding balance of weight, elasticity, and durability.

Compared to conventional butyl tubes, it significantly reduces wheel weight. Lower rotating mass is particularly beneficial for performance cyclists looking to optimize the handling and responsiveness of their gravel or all-road bike.

The TPU material is also extremely packable, folding into a tiny bundle that takes up minimal storage space.

Weight of Just 45 Grams

One of the greatest advantages of the PURPLE LITE tube is its remarkably low weight.

Weighing only 45 g, it offers significant weight savings over conventional butyl gravel inner tubes.

This makes it suitable for racing and sports use, as well as for cyclists looking for the lightest possible spare tube.

85 mm Presta Valve for Deeper Rims

The inner tube is equipped with an 85 mm Presta valve.

The longer valve stem is ideal for gravel and road bikes with aero or deeper rim sections, where shorter valves may not provide enough protrusion for easy inflation.

Always verify that the valve length matches your specific rim depth before installation.

The valve features a two-piece construction with a polymer base and a metal tip, providing improved heat resistance when using electric mini-pumps.

Lock Nut and Spacer Washer

The valve assembly includes a retaining nut and spacer washer.

These help stabilize the valve stem in the rim, preventing unwanted movement and rattling while riding.

Securing the valve also facilitates connecting the pump head and ensures hassle-free inflation.

Compact Dimensions for Easy Transport

TPU material allows the tube to be folded into a remarkably compact package.

It easily fits into a saddle bag, jersey pocket, or frame storage compartment.

PURPLE LITE is therefore perfect as a primary inner tube for performance riding or as a compact spare for long gravel adventures, races, and bikepacking.

Compatibility with 700 × 32–47C Tires

This inner tube is designed for tire sizes ranging from 700 × 32C to 700 × 47C.

It is compatible with 622 mm (700C / 28") rim diameters and tire widths from 32 to 47 mm.

It fits sizes such as 700 × 32C, 700 × 35C, 700 × 38C, 700 × 40C, 700 × 42C, 700 × 45C, and 700 × 47C.

Always stay within the manufacturer's specified tire size range.

TPU Inner Tube Installation Guidelines

TPU inner tubes require different handling compared to traditional butyl or latex tubes.

During installation, ensure the tube does not get pinched between the tire bead and rim, and strictly follow the manufacturer's instructions.

When inflating outside the tire, pressure must remain below 35 kPa (0.35 bar / 5 psi). The tube should only be inflated to working pressure after being properly seated inside the tire.

When using an electric pump, it is recommended to use an extension hose to prevent overheating the valve or TPU material.

The manufacturer also states that this tube is not intended to be repaired in the event of a puncture.

Key Features:

• Manufacturer: Panaracer

• Model: PURPLE LITE

• Product Type: Ultralight gravel bicycle inner tube

• Material: TPU – Thermoplastic Polyurethane

• Size: 700 × 32–47C

• Compatible ETRTO Sizes: Width 32–47 mm, diameter 622 mm

• Rim Diameter: 622 mm (700C / 28")

• Compatible Tire Width: 32–47 mm

• Valve Type: Presta (FV / SV)

• Valve Length: 85 mm

• Valve Construction: Two-piece, polymer base with metal tip

• Valve Accessories: Retaining nut and spacer washer

• Weight: 45 g

• Tube Color: Purple

• Intended Use: Gravel, all-road, cyclocross, training, racing

• Manufacturer Code: TW732-47F85-PL

• EAN: 4931253105616

Key Benefits:

• Ultralight design weighing only 45 g

• Advanced TPU material combining flexibility and durability

• Significant weight savings over standard butyl tubes

• Extremely compact folded dimensions

• Ideal as a lightweight spare inner tube

• Compatible with gravel tires 700 × 32–47C

• Long 85 mm Presta valve

• Suitable for wheels with deeper rim sections

• Two-piece valve design with metal tip

• Retaining nut and washer to eliminate valve movement

• Designed for performance and competitive gravel riding

• Distinctive purple finish

Application: The PANARACER PURPLE LITE TPU 700 × 32–47C Presta 85 mm (TW732-47F85-PL) inner tube is perfect for gravel and all-road riders aiming to reduce rotational wheel weight and take advantage of modern TPU technology. With a weight of only 45 g, compact packed volume, and an 85 mm valve, it is an outstanding choice for sports training, gravel races, bikepacking, and as a lightweight emergency spare for deep-section rims.