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FSA

FSA - K-FORCE OS-99 CSI 31.8 CLAMP STEM - BLACK

FSA - K-FORCE OS-99 CSI 31.8 CLAMP STEM - BLACK

$322.99 NZD
$339.99 NZD $322.99 NZD
Rouleur Online Price Sold out
Taxes included. Shipping calculated at checkout.

Title

Low stock
  • NZ Based
    NZ‑Based Support – Talk to real riders who understand your needs.
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    Secure Payments – Shop Pay, Google Pay, Apple Pay & major cards accepted.
  • Warranty Protection
    Warranty Protection – All bikes backed by manufacturer warranties.
  • Easy Returns
    Easy Returns – Hassle‑free returns on unused gear.

The K-Force OS-99 CSI stem is 3-D forged and CNC machined from AL2014. Then it’s combined with a carbon structure using our CSI (Carbon Structural Integration) technology. CSI is a process that permanently bonds carbon to alloy to create a true hybrid product, with many of the benefits of aluminum and carbon. The final details reduce the OS-99 stems weight by using a 4-bolt sculpted AL2014 alloy/carbon faceplate and titanium hardware.

3D forged and CNC machined from AL2014
Carbon Structural Integration Technology
41mm fork clamp stack height
UD Carbon Finish
41mm Clamp Stack Height
Weight 125 grams (100mm)

Shipping

Click & Collect – Free
Order online & collect at our Onehunga store.

NZ Shipping Costs

  • General Items: $8/item
  • Bikes & Frames: $100 (North Island) / $120 (South Island)
  • Large/Bulky Items: $30 (North Island) / $60 (South Island)
  • Helmets: $20 (North Island) / $25 (South Island)

Rural: Extra fee applies — select “Rural Delivery” at checkout.

International Orders – Contact info@rouleurcycles.co.nz for a quote.

Bike Shipping

  • Fully assembled, tuned & safety‑checked before dispatch.
  • Carefully boxed (minimal reassembly required).
  • Recommend mechanic check before first ride.

Timeframes

  • General: 3–5 working days (+1–2 for rural)
  • Bikes: 5–7 working days (up to 10 remote) + prep time for build/boxing
  • Delays may occur during holidays or courier disruptions.

Tracking & Issues

  • Tracking emailed once dispatched.
  • Contact the courier first for delays. Need help? Email or call us.
  • Report damaged/lost parcels within 3 days.

No PO Boxes – Physical addresses only.

Why Buy From Rouleur?

Trusted NZ Bike Experts – Locally owned & operated with years of experience helping Kiwi riders get the most out of their bikes.

Custom Builds & Personal Fitting – From road to e‑bikes, we tailor every build to your riding style and goals.

Fast, Reliable Shipping – In‑store stock ships next business day. Supplier stock delivered in as little as 3–5 days.

After‑Sales Support That Rides With You – From servicing to upgrades, our workshop team is here for the long haul.

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