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TRIWONDER Bike Stem 25.4 31.8 Adjustable 60 Degree 90mm 110mm 130mm Bike Handlebar Extender Stem Riser Bicycle Handle Bar Extensions for Mountain Bike, Road Bike, MTB, BMX, Cycling

  • Based on 2,415 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Thursday, Nov 28
Order within 14 hours and 38 minutes
Available payment plans shown during checkout

Size: 31.8 x 110mm


Features

  • SIZE- Stereer Tube diameter: 28.6mm (1-1/8") Handlebar Diameter: 31.8mm (1-1/4") or 25.4mm (1'') Length: 90mm / 110mm / 120mm / 130mm Degree: 0-60 Adjustable
  • ADJUSTABLE- Our bike handlebar extender features a sturdy and easily adjustable structure, eliminating the hassle of removing and replacing the bike stem to achieve the desired height
  • EASY TO INSTALL- The bike handlebar extender makes installation a breeze with clear specifications and an angle indicator, ensuring you can easily set the correct angle for your bike handlebar
  • IDEAL STEM FOR BIKE- The adjustability of our handlebar extender makes it a great choice for achieving a comfortable riding position, allowing you to ride in a more upright position for better back support
  • APPLICATIONS- Made with 3D Forged Alloy Construction, this handlebar extension provides both strength and control, making it suitable for most road bikes, fixed gear bicycles, bmx, mtb, mountain bikes

Color: 31.8 x 110mm


Brand: TRIWONDER


Material: Aluminum


Bike Type: Road Bike


Manufacturer: TRIWONDER


Manufacturer: ‎TRIWONDER


Brand: ‎TRIWONDER


Item Weight: ‎11.6 ounces


Package Dimensions: ‎6.89 x 3.78 x 1.97 inches


Country of Origin: ‎China


Item model number: ‎OS0908


Manufacturer Part Number: ‎OS0908


Date First Available: August 4, 2020


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Nov 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Narrow size that makes it work well with aero bar extensions
Size: 25.4 x 90mm
Most stems are too wide for extra room to add aero extensions for special road drop bars. But this is pretty narrow, so I was able to make it fit. And its cheap too. Some things are good when made in China.
Reviewed in the United States on May 11, 2024 by Stanzie

  • Quality adjustable bike stem
Size: 25.4 x 110mm
I bought this for my girlfriend's bike. It was easy to install and fit perfectly. All the pieces tightened properly with no slippage. Good quality product.
Reviewed in the United States on June 6, 2024 by Ronnie B.

  • Perfect
Size: 25.4 x 130mm
Used it on my Lectric 2.0 ebike to shorten the reach to the handle bars. Worked great.
Reviewed in the United States on May 13, 2024 by Amazon Customer

  • A bit creaky
Size: 25.4 x 90mm
Slight creak when pulling hard but that was expected. Easy, positive adjustment. I used this to turn an old mountain bike into a trail cruiser and it suited that purpose well.
Reviewed in the United States on November 9, 2023 by Paul

  • Works perfectly!
Size: 25.4 x 130mm
This stem adjuster works perfectly on my Lectric 2.0. It allows me to bring the handle bars closer to me and allows me to adjust to the perfect angle. My hands are no longer going numb, because of having to reach.
Reviewed in the United States on November 18, 2023 by DDZ DDZ

  • Does exactly what I wanted it to do!!
Size: 25.4 x 90mm
Seems well made. No installation instructions but You Tube showed me how to do it. Didn't have to remove any handlebar attachments. Really pleased with purchase. It's installed on a G-Force T42 folding Bike. Rode it for several hours today on first test of the stem and all works well. No "tiller" effect as some have noted. Steering doesn't seem affected at all, but having the handlebars closer to my seated position was the point, and this accomplished that. ... show more
Reviewed in the United States on February 2, 2024 by Jacrams

  • Fits great
Size: 31.8 x 120mm
Great fit
Reviewed in the United States on April 18, 2024 by Joe Cox

  • Works but arrived damaged
Size: 25.4 x 110mm
Product works as intended but it arrived damaged. The packaging was fine so damage wasn’t from delivery. Looks like it was possibly used?? Not sure. Doesn’t affect the integrity of it so I’m just going to use it as is. Just a bit disappointing to receive a damaged product.
Reviewed in the United States on September 10, 2023 by Amazon Customer Amazon Customer

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