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Ships within 48 hours · Estimated delivery Aug 7 - Aug 12
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For Your Every Summer RSVP, with Code: SUMMER15
Description
FSA (Full Speed Ahead) ACR Stem - 80mm, 31.8 Clamp, +/-6, BlackFSA ACR (Aerodynamic Cable Routing) Stems have a low profile frontal area that is suitable for road and gravel riding. Aerodynamic Cable Routing (ACR) Low profile frontal area Body and faceplate crafted from 6061 T6 alloy with chromoly hardware Specific frame and headset required 31. 8mm handlebar clamp diameter 30mm fork clamp stack height Compatible with K Force Light ACR Compact, SL K ACR Compact, Energy ACR Compact, K Wing AGX and K Wing AGX
FSA ACR (Aerodynamic Cable Routing) Stems have a low profile frontal area that is suitable for road and gravel riding.- Aerodynamic Cable Routing (ACR)
- Low profile frontal area
- Body and faceplate crafted from 6061 T6 alloy with chromoly hardware
- Specific frame and headset required
- 31.8mm handlebar clamp diameter
- 30mm fork clamp stack height
- Compatible with K-Force Light ACR Compact, SL-K ACR Compact, Energy ACR Compact, K-Wing AGX and K-Wing AGX handlebars
Product Specifics
- Stem Angle (deg): +/-6
- S.H.I.S. Stem Clamp Diameter: 28.6
- Defined Color: Black
- Stack Height: 30
- Weight: 235
- Color: Black
- Material: Aluminum
- Length: 80
- Bar Clamp Diameter (mm): 31.8
Today's Stock Status
UPC: 840031067043
EAN: Not available
Manufacturer Part Number: 175-0034016030
SM0189 570251
165901-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 5
Happy Son
Size: Large, Color: (001) Black / Black / Castlerock
My sons loves them. They are all he wears.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Medias
Size: One Size, Color: (403) Washed Navy / White / Halo Gray
Muy buenas, cómodas me encantaron
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Reviewed in the United States on April 5, 2026
★★★★★ 5
Excellent sport sock!
Size: One Size, Color: (100) White / White / Halo Gray
Molds onto foot, super soft and breathable. A lot of my ankle socks tend to slip or cut off blood circulation. This one literally is a perfect fit. No slip. After playing hours of tennis every week, my feet don't feel sore or bruised. Must buy!
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Reviewed in the United States on October 9, 2025
★★★★★ 5
Comfort!
Size: One Size, Color: (100) White / White / Halo Gray
Very comfortable! Thinner than the picture shows, but I like the fact that they are no show but still higher in the back and front to protect my heels and such.
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Reviewed in the United States on September 6, 2025
★★★★★ 1
Sizing way off
Size: One Size, Color: (100) White / White / Halo Gray
These were my favorite socks, at least the old style was. They redid them and I was okay with it. However, I don't understand how they are a one size fits most. I tried them on and they were still too big at the top. There was so much extra fabric at the toes. For reference, I wear a size 8.5 women's shoe, typically. The packaging says fits most from size 5.5 to 12. I don't understand how it fits that wide range of shoe size. Definitely returning these and I will be buying something else.
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Reviewed in the United States on October 10, 2024