Elite Longboi Stem

Elite Longboi Stem
$330.00
Length
Angle

“So long, on the track you’re practically riding in your own slipstream”

The longest of longboi’s, this sprint stem extends your reach out for a more aerodynamic position to get the most out of the UCI geometry regulations.

The Elite Longboi is the stiffest stem we have created and tested to date! The stems have exceeded 2x the fatigue and static overload ISO requirements for racing bicycle steering components.

Designed in collaboration with Cycling New Zealand for Tokyo Olympics.

Geometry

Traditional stem measurements like length and angle don’t easily show you where the stem actually places your handlebar. This calculator uses your bike’s head tube angle to determine the exact reach and stack coordinates of the Elite Longboi Stem - giving you precise data to optimise your fit.

Illustrated is a 150mm -6stem at a 74

Longboi Stem Geometry Calculator

© The intellectual property for this product is owned by Velobike Innovation Limited. All rights reserved.
Technical Specifications
  • UCI certified for competition use
  • JKA certified for Japanese's Keirin Racing 
  • ISO 4210-5:2023 certified (tested to 2x the ISO requirements)
  • 120mm to 200mm lengths
  • +/-6, +/-12 or +/-16 degree angle options
  • Reversible mounting capability (angled up or downward)
  • Aero design developed using CFD software
  • Rear mounted stem cap bolts for reduced aerodynamic drag
  • Titanium hardware for weight reduction
  • Low profile steerer tube clamp for greater integration with notched headtube framesets
  • Material: Hard anodised 7075-T6 aluminium
  • Weight: 150mm/6deg - 250g
  • Steerer diameter: 1-1/8th
  • Bar clamp diameter: 31.8mm
  • Bar clamp width: 48mm
  • Steerer clamp stock height: 32mm
Design Specifications
  • Velobike Innovation proprietary Gen3 tooth profile
  • Precision CNC Machined
  • Gen3 tooth profile
  • Chamfered relief cutout on rear side for weight reduction. The chamfered edged help air flow over the ridges reducing flow separation
  • Stepped surface design between teeth and the main body of the chainring plate keeps the chain outer plates flush with the chainring to reduce air flow separation.
  • Tough anodised surface treatment, infused with a hi-tech low friction compound
  • JKA certified for Japanese's 250 Keirin Racing (48-68t)
Spare Parts & Extra Accessories

Replacement screws are available here.
Installation Tips
  • Use a long hex driver and a torque wrench to torque up the reverse facing screws to a maximum of 5Nm
  • Use copper grease on screw threads (grease not included)
Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem
  • Elite Longboi Stem

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