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AProto Bike

P17 CICR Titanium Stem

P17 CICR Titanium Stem

Regular price $0.00 USD
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Why do you want it?

You are looking to lower your position with a stem that's got the Classic good looks of a round profile stem and the modern functionality of fully Internal Cable Routing.

Loaded with routing options this stem includes a way to route hoses either:

  1. Under the stem and then into the a central routing channel in the bars
  2. Into the stem through the headset and then out the underside stem clamp
  3. Into the stem through the headset and then into the bar for fully internal routing

You are riding a bike that has uses an electronic drivetrain and are willing to give up compatibility with mechanical drivetrains.

What is it? 

This 3D-printed stem is made from 3D-printed, vacuum heat-treated 6/4 Titanium. The initial design is a -17 degree stem that is designed only for 2 hydraulic hoses when used for fully internal routing. It has a 35mm stack and a 44mm clamping area. The stem is has an upper and lower bolt spacing of 32mm c-c.

It comes in 120mm, 130mm, 140mm, and 150mm lengths.

Each stem also comes with a headset cover compatible with the FSA ACR series of headsets, 30mm of spacers, and an additional 5mm under-hose routing adapter.

How is it Made?

The stems are printed from 6/4Ti and then undergo a vacuum heat treatment that reduces voids.

The stems were developed and tested to exceed ISO 4210 standards.

Note: This product is not yet available to order. We are currently validating prototypes and selecting suppliers.

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