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  • Race Face Aeffect 35 Stem
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Race FaceAeffect 35 Stem

Item # RCF002X

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  • Black, 50mm ($39.95)
  • Black, 60mm ($39.95)
  • Black, 70mm ($39.95)
  • Black, 80mm ($39.95)
  • Black, 90mm ($39.95)
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Item # RCF002X


If you're keen on importing the new gravity standard of 35mm bars to your XC or trail rig, then Race Face's Aeffect 35 Stem has you covered. Its 6061 aluminum body is lightweight and designed for single-crown forks, but it lets you replace your oversized 31.8mm bar with an over-oversized 35mm model. The overall expansion of bar and stem does come with a slight weight gain, but we think the added stiffness and reliability of a reinforced cockpit is worth the few extra grams — especially considering the wider handlebars we're seeing on mountain bikes these days.

  • Enjoy the benefits of 35mm bars without breaking the bank
  • Forged and machined from 6061 aluminum to ensure strength
  • Interlocking clamp moves force away from the bolts for durability
Tech SpecsWeight
Tech Specs
6061 T6 aluminum
50mm, 60mm, 70mm, 80mm, 90mm
Clamp Diameter
Steer Tube Diameter
Bar Attachment
4-bolt clamp
Recommended Use
mountain bike
Manufacturer Warranty
2 years

Actual Weight

Actual weights are measured in-house by the Competitive Cyclist team.

Have questions? Chat with a Gearhead



Black, 50mm
Black, 60mm
Black, 70mm
Black, 80mm
Black, 90mm

Claimed Weight

Claimed weights are provided by the vendor.

Have questions? Chat with a Gearhead

[60mm] 155 g

Reviews & Community


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Cheap, looks right, guess it's good.

  • Familiarity: I've put it through the wringer

It's all you need, light enough, SUPER cheap and looks pretty good, so just pull the trigger.

Quality and Good Value

  • Familiarity: I've used it once or twice and have initial impressions

Easy to install, looks good and gets the job done.

High quality stem for MTB

  • Familiarity: I've used it several times

Purchased this stem for my wife's bike. High quality material and weight for the price. Totally recommend.

Clamp the 35mm Down

    This works for keeping the 35mm steering part of your bike where it should be. Economical and not bad looking in a good range of sizes.

    Will get the job done

    • Familiarity: I returned this product before using it

    This stem ended up not being right for my build however it looked like a great stem for the value! I went in another direction but would consider this stem for a different bike than the SB6 i was building.

    Great Value Stem

    • Familiarity: I've put it through the wringer

    All my bars have swapped to 35mm clamps and this is my go to for a great price stem. I personally go with a 50mm or shorter on all my bikes but the options here go all the way up to 90mm so everyone is happy

    Value added for more reach

    • Familiarity: I've used it several times

    The stock stems on many of today's on-trend geometry bikes are a bit short for my liking. Therefore I swapped out my 50mm for a 70mm and feel right at home on my SC 5010. The 35mm clamp size is here to stay and the bars are stiffer because of it. This is an economic option for a stem and stays true to RF quality.