Infinity B-Line Twin

Infinity B-Line Twin

Infinity’s SUP surf lineup is deeply influenced by its traditional surfboard heritage. With the continued rise in popularity of twin-fin designs—and the long-standing passion for twins shared by Dave Boehne and Bernd Roediger—the B-Line Twin was a natural evolution.

Design

The B-Line Twin is built on the proven foundation of the original B-Line, retaining its hybrid outline and lower, more sensitive rails as core DNA. It blends the razor-sharp control of the Blurr V3 with the added stability of the Wide Speed, resulting in a faster, more composed, tour-level SUP surf ride.

R&D

The nose is slightly wider than the Blurr while still maintaining a refined point for control. A longer, straighter outline through the midsection enhances stability, which is then broken at the fins with a subtle “bump” in the rail line to create a precise pivot point off the bottom. This is paired with a lower tail rocker and a vee concave bottom contour that delivers grip, drive, and instant redirection.

Design Features

• Original B-Line DNA

• Performance hybrid outline with a straighter midsection for added stability and down-the-line speed

• Twin fin setup with lower tail rocker for increased speed and hold through carves

• Low-aspect, shortboard-style rails

• Clean outline with a tail “bump” for a defined pivot point

• Jet tail for enhanced rail grip and control

• New thinner, lighter, water-resistant traction

• Single to vee concave bottom contour

• 3 x Futures (Twin + Trailer) fin configuration

• Larger, more contoured carbon fibre carry handle

Shape Details

• Outline: Performance hybrid outline with a slightly wider nose and tail for stability and speed. The traditional B-Line wing has been removed and replaced with a cleaner “bump” pivot point.

• Rails: Low-aspect, tapered rails consistent with the original B-Line.

• Bottom: Shallow concave through most of the board, transitioning into a rolled vee with concave inside for smooth rail-to-rail flow and easy speed generation.

• Rocker: Moderate entry rocker with a slightly lower tail rocker for drive, speed, and control.

Construction

Built using Infinity SUPspension TECH, the B-Line Twin features a full carbon molded sandwich construction. Widely regarded as one of the best strength-to-weight constructions in the industry, it delivers a custom-tuned flex that defines the distinctive ride quality Infinity boards are known for.