Pulse - 3D Printed Titanium Crankset
$950.00 AUD
Description
Pulse is our first titanium crankset, and it works differently to almost anything else at the heart of a modern drivetrain. Each crank arm is fully 3D printed from 6AL/4V titanium as a single, seamless piece, with no welds and no bonded joints. This is how Pulse resolves the usual trade-off between stiffness, weight, and durability, and it does so with a purity of form that only printed titanium allows.
Printing the arms lets us place material precisely where the load travels and remove it everywhere it is not needed. The result is an exceptional stiffness-to-weight ratio and a direct, connected feel under power. A CNC-machined 6AL/4V spindle is permanently joined to the non-drive arm through an interlocking keyed interface, forming one solid structure that transfers every watt cleanly from pedal to chainring. Each crankset is finished by hand with a brushed surface and laser-etched logos
Pulse is compatible with all Bossi road and gravel models, and with any frame running an industry-standard bottom bracket compatible with 30mm spindles.
Features
- Fully 3D printed 6AL/4V titanium crank arms, one-piece construction with no welds
- CNC-machined 6AL/4V titanium 30mm spindle
- Spline key connection between crank and axle
- SRAM 8-bolt direct-mount chainring interface
- Power-meter compatible via 8-bolt spider
- Chainline: 45mm (1x, with 6.5mm offset chainring)
- Chainline: 45mm to midpoint (2x)
- 148mm Q-factor
- Arm lengths: 165, 167.5, 170 and 172.5mm
- Weight: 415g (170mm)
- Brushed titanium finish with laser-etched logos
- 10 year warranty
THE DESIGN
Fully printed, with no welds
Most cranks are forged, machined, or bonded from several parts, and every joint between them is a compromise in stiffness, weight, or fatigue life. Pulse has none. Each arm is built by powder-bed fusion, melting 6AL/4V titanium powder layer by layer into a single continuous part with a hollow internal section, then finished by hand. Printing the arm allows full topology optimisation: material is concentrated along the primary load paths and removed wherever stress is low. The result is a one-piece titanium arm with no welds and no bonded interfaces, and therefore none of the heat-affected zones or stress concentrations that limit the fatigue life of a jointed crank. It is exceptionally stiff for its weight, highly fatigue resistant, and distinctly modern in form.
Spindle and arm as one
The CNC-machined 6AL/4V spindle is pressed permanently into the non-drive arm through an interlocking keyed joint. The meshing teeth lock the two components into a single structure and transmit torque directly from spindle to arm. There is no bolted crank interface to loosen or creak over time. Once assembled, Pulse behaves as one continuous piece of titanium, which gives you direct power transfer and a drivetrain that stays quiet and precise for the life of the crank.
Titanium at its best
Titanium's fatigue resistance, ride quality, and longevity make it a natural choice for a component that sees millions of load cycles. Combined with 3D printing, those qualities go further. Pulse offers the impact resistance and lifespan of titanium alongside a stiffness-to-weight figure that rivals premium carbon, in a finish that will still look its best years from now.
What's Included
Eeach cockpit ships with:
- Upper headset bearing
- Compression ring
- Headset Top Cover
- 2x 10mm spacers
- 2x 5mm spacers
- Top cap
- Computer mount + fixing plates + GoPro Mount
Shipping
We offer free domestic shipping within Australia on orders over $200. International shipping is heavily subsidised by Bossi, with flat rates available for framesets, complete bikes, wheelsets, and parts. For shipping rates, delivery estimates, and import tax information, please visit our Shipping page.
Shipping