Giant Contact SLR Aero Stem: Carbon Integrated Stem for OverdriveAero Steerers (£279.99)
The Giant Contact SLR Aero is a carbon stem made for Giant’s D-shaped aero steerer tubes. We have not tested it ourselves. This page collects Giant’s listed specs, the Tredz price and who it suits.
Available now: Giant Contact SLR Aero Stem — £279.99 at Tredz, correct at time of writing, 3 October 2026.
What the manufacturer and retailers list
- Material: Advanced SL Carbon, per Giant’s product page.
- Angle and clamp: −10°, with a 31.8 mm bar clamp.
- Steerer: Giant’s page lists OverdriveAero steerers only, so it will not fit a round steerer.
- Weight: Giant’s spec table gives 133 g at 80 mm and 163 g at 140 mm, rising 5 g for each 10 mm of length between them.
- Lengths: Giant’s table starts at 80 mm; check the Tredz page for the lengths currently in stock.
Specs are taken from Giant’s Swiss product page. We did not find a list of compatible Giant models on that page, so check your frame’s steerer shape before ordering.
Where it fits a triathlete’s training
The points below are our reading of the listed specs, not test results.
- A Giant aero-frame upgrade. If your bike has a D-shaped OverdriveAero steerer, this is a lighter carbon option than an alloy stem.
- Fit changes. Stem length and angle change your reach and drop, so get a bike fit before swapping to a different length.
- Not for round steerers. Most non-Giant bikes need a different stem; see our Zipp Service Course stem review.
- Price. At £279.99 it is a premium stem. Tredz shows no discount on it at time of writing.
Where to buy
Tredz lists the Giant Contact SLR Aero Stem at £279.99 at time of writing, and the link below goes to the same product page.
Related guides
See also our Giant Propel launch coverage and the Vision Metron 5D ACR Evo cockpit review.
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