STEM FSA AFTERBURNER 70mm +/-6d 31.8 BK3D forged and CNC machined 6061-T6 alloy construction for a balance of strength and weight. 4 bolt cold forged clamp face. 40mm stack height. 144g (100mm version). Item Specifications: Material, AL6061-T6, Type, Threadless, Color, Black, Length, 70, Angle, +/-6°, Finish, Anodized, Bar Clamp, 31.8, Fork Dia, 1-1/8`,

Full Speed Ahead Afterburner Stem 70mm Stem Len 31.8mm Bar 28.6mm Clamp Dia Black

Reference Number: 4DX4EP

Enhance Your Road Cycling Setup with the Full Speed Ahead Afterburner Threadless Stem 31.8mm 70mm +/-6 Degrees Black Aluminum

Upgrade your bike's performance and style with the Full Speed Ahead Afterburner Threadless Stem, a high-precision component engineered for serious cyclists seeking strength, lightweight durability, and optimal handling. Crafted from premium AL6061-T6 aluminum, this stem delivers an ideal blend of strength, stiffness, and weight savings, making it perfect for competitive road riding, endurance events, or recreational cycling.

Materials & Construction

- Manufactured from 3D forged and CNC machined AL6061-T6 aluminum for unparalleled strength-to-weight ratio

- Features a durable sandblasted black finish with polished black anodized laser graphics for a sleek, premium look

- Equipped with high-quality, cold-forged 4-bolt front clamp face and chromoly steel hardware for reliable, secure fitment

Performance & Engineering

- Precision CNC machining ensures tight tolerances and a clean aesthetic

- Designed with an adjustable +/- 6-degree angle for personalized rider positioning and improved aerodynamics

- Lightweight at just 144 grams (100mm version), helping to reduce overall bike weight without sacrificing durability

- 40mm fork stack height guarantees compatibility with most road frames and fork standards

Components & Technology

- Handlebar clamp diameter of 31.8mm for a universal fit with modern handlebars

- Cold forged clamp face provides superior clamping force, supporting high-impact rides and aggressive cornering

- Crafted with attention to detail and modern manufacturing technology, ensuring reliability and longevity

Style & Use Case

- Features a sleek black anodized finish with laser graphics, adding a professional and aggressive aesthetic perfect for race-day or training rides

- Ideal for road cyclists demanding precise steering, adjustable fit, and lightweight performance

- Suitable for road bikes, gravel, and endurance cycling where a combination of style, function, and durability is essential

Key Features:

- 3D forged and CNC machined AL6061-T6 alloy construction for optimal strength and weight

- 4-bolt cold forged clamp ensures firm handlebar security

- Adjustable +/- 6-degree angle for customized fit and aerodynamic positioning

- Available in multiple sizes: 60mm, 70mm, 80mm, 90mm, 100mm, and 110mm for versatile fit options

- Lightweight at 144 grams (70mm version), enhancing overall bike agility

Upgrade your cycling performance with the Full Speed Ahead Afterburner Threadless Stem-engineered for durability, lightweight handling, and a sleek modern look. Perfect for competitive road riding, triathlons, or day-to-day cycling enthusiasts seeking premium components for peak performance.

Optimize your bike's handling and style today with the Full Speed Ahead Afterburner Stem, the ultimate upgrade for serious cyclists.

  • Enhanced performance and durability with the Full Speed Ahead Afterburner Threadless Stem, crafted from high-quality AL6061-T6 aluminum for optimal strength-to-weight ratio.
  • Precision CNC machining and 3D forging ensure superior construction, providing reliable stiffness and responsiveness during aggressive riding or XC mountain biking.
  • Equipped with a cold forged 4-bolt front clamp, this stem offers enhanced clamping force and security to keep your handlebar securely in place, even on rough terrains.
  • Designed for versatility and style, the stem features a sleek sandblasted black finish with polished anodized laser graphics, perfect for both aesthetic appeal and durability in all weather conditions.
  • Ideal for road cycling and mountain biking, the 70mm length with +/- 6-degree rise offers customizable fit and aggressive handling, making it a top choice for cyclists seeking performance-oriented components.
Item Specifications
MaterialAL6061-T6
TypeRoad
Angle+/- 6°
Finish40
Bar Clamp31.8
Fork Dia1-1/8`

Why 365 Cycles?

365 Cycles is an Authorized Full Speed Ahead Dealer, and we offer the Full Full Speed Ahead Warranty!

Fast Shipping!

Professional Customer Service- available 7 days a week
Check out our 200,000+ amazing reviews!

365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.

At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.

We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.





Shipping & Handling

Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.

Please allow 1-2 business days for your order tracking to update.

  • Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
  • Friday afternoon -Sunday orders ship the following Monday
  • Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.

Combined Shipping Discounts

To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.

  1. Be sure you are using the US site: https://www.ebay.com
  2. Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
  3. Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
  4. Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
  5. You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.

Returns

365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.

Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.

Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.

If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!

Exchanges

If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.



STEM1167 .

Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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