Best Tandem Bike Stems in 2026

!!! NOTE (very important) : This mountin bike mtb stem ONLY fit for 31.8mm handlebar! Other handlebar is NOT applicable！Handlebar diameter 31.8mm (1.25''), front fork stem diameter 28.6mm (1-1/8"), Length: 70mm (center distance of the two holes)

Angle: 35 degree. Help to up or down the heigth of handlebar.

Light weight and durable. Weight. Only 140g(0.3lb) ,

The Ritchey 4-Axis Adjustable stem features a 3D-net shaped forged shaft, interconnected with a precision broached clamp to create a strong, lightweight and secure stem

Stem angle is adjustable +/- 55 degrees to obtain the optimal height and position

Stainless steel bar and steerer clamp bolts provide exceptional durability

🚲【Perfect for Most Bikes】The stem riser is suitable for most bike with 1-1/8''(28.6mm) threadless steerer.Your bike can do more with this mountain bike stem extender.

🚲【Adjustable Height】The bicycle stem riser offers up to 85mm stem height increase, you can customise your new riser stem height perfectly for your riding needs.

🚲【4 Spacers Included】The stem riser adapter comes with 4 spacers (1×5mm & 3×10mm), so you can adjust the height of the riser stem by swapping spacers.

Maximum Height Extension: 70mm (2.7 inch). Include 4 gaskets, 3 x 10mm (2/5 inch) and 1 x 5mm (1/5 inch). Can freely adjust the gasket to fit your own height

Easy installation, just connect up the original front fork stem

Forged 6061 Aluminum Alloy Material with polished anodized finish, Solid, Secure, Durable.

✅ HIGH STRENGTH -- 6061 Aluminum alloy bicycle stem riser is 20% lighter than ordinary Al alloy stem extender. Solid and firm handlebar extender that is hard to loose, more safety when use. Strong in anti-corrosion and rust-free, high toughness and not deformed

✅ FUNCTIONAL GASKETS -- The bike neck extender is equipped with 4 gaskets, 3 x 10mm and 1 x 5mm, can increase the height up to 85mm. (more details refer to Figure 2)

✅ ADJUSTABLE -- The stem adaptor can adjust the gasket to fit your need freely, reducing the pressure of waist effectively, biking more relaxed

Angle: +/- 7 Degree.;Handlebar diameter 31.8mm (1.25''), front fork stem diameter 28.6mm (1-1/8"), Length: 60mm (center distance of the two holes)

Light weight and durable.Weight :115g

Constructed of high-strength CNC machined 6061 T6 aluminum alloy.

Fit for Handlebar diameter 25.4 mm (1'')(31.8mm is not suitable), front fork stem diameter 28.6mm (1-1/8"), Length: 60mm (center distance of the two holes)

Angle: +/- 35 degree.help to up or down the heigth of handlebar.

Light weight and durable. Weight.106g(0.23lb)

Handlebar diameter: 31.8mm (1-1/4"), Tube diameter: 28.6mm (1-1/8"), Length: 45mm (center distance of the two holes), Weight: 130g

Universal short handle bar stem suitable for most road bike, fixed gear bicycle, mountain bikes, downhill bike, track bike, MTB, BMX, DH, etc.

Constructed of high-strength CNC machined 6061 T6 aluminum alloy.

Stereer Tube diameter: 28.6mm (1-1/8"), Handlebar Diameter: 31.8mm (1-1/4"), Length: 90mm, Weight: 260g, Degree: 0-60° Adjustable

Hollow design, Light weight. Please Confirm Your Size Before Your Purchase

Four bolt bar clamp holds bar securely in position.

【Ideal Stem for Rider】: Can't get comfortable on your bike? Tried too many bike stems? This adjustable stems are a useful way of tweaking your handlebar height and reach, particularly for touring where you spend long hours in the saddle. Our adjustable stem is the best bet to get comfortable

【Compatibility】: Only Fit for Handlebar diameter 31.8mm (1-1/4''), front fork stem diameter 28.6mm (1-1/8") and is available in a range of lengths – 90, 110 and 145mm. PLEASE CONFIRM YOUR SIZE BEFORE YOUR PURCHASE

【Material】: The MTB stem is manufactured with a 3D Forged alloy construction that gives strength and control. The durability of this stem is very adjustable with an angle of (-85°to +85°)

Only Fit for Handlebar diameter 31.8mm (1.25''), please measure the diameter of your bandlebards before you buy it. front fork stem diameter 28.6mm (1-1/8"), Length: 110mm (center distance of the two holes).This mtb stem only fit for 31.8mm(1.25") handlebars.

Adjustable angle: 0° ~ 60°. Maximum height extension 90mm.

Weight:285g. Constructed of high-strength CNC machined 6061 T6 aluminum alloy.strong and durable.

Only Fit for Handlebar diameter 25.4mm (1''), front fork stem diameter 28.6mm (1-1/8"). Note:Do not fit 31.8mm (1.25") handlebar.Please confirm that your Handlebar Diameter is 25.4mm before you buy it.

Adjustable angle: 0° ~ 60°.Maximum height extension 90mm.Length: 110mm (center distance of the two holes)

Weight:274g. Constructed of high-strength CNC machined 6061 T6 aluminum alloy.strong and durable.

Bar bore clamp diameter:31.8mm(1-1/4"),Steerer Tube Diameter: 28.6mm (1-1/8"),Stack Height: 40mm,Stem length:60mm (center distance of the two holes),

Rise: +/- 25 degree.help to up or down the heigth of handlebar.

Universal 31.8 to 25.4 Bike Handlebar Shim, 31.8 Mountain Bike Stem can refit into 25.4mm Stem for Fixed Gear Bike ,City Bike etc.,

🚴‍♂️ SPECIFICATION: Angle: +/- 7 Degree; Handlebar Diameter: 31.8mm (1-1/4"), Front Fork Stem Diameter: 28.6mm (1-1/8"), Length: 60mm / 70mm / 80mm / 90mm (center distance of the two holes)

🚴‍♂️ HIGH QUALITY: Constructed of high-strength 6061 aviation aluminum alloy. Lightweight and durable

🚴‍♂️ EASY INSTALLATION: Just connect up the original front fork stem. Four bolt bar clamp holds bar securely in position

45mm Handlebar diameter 31.8mm (1-1/4"),Stereer Tube diameter: 28.6mm (1-1/8")

Lightweight MTB stem, Length: 45mm (center distance of the two holes)

Material:made of high-strength material - aluminum alloy 6061.

Only Fit For Handlebar Diameter 25.4mm (1''), Steerer Tube Diameter: 28.6mm (1-1/8"). Please read Purchase Guide carefully before order.

Degree: 0-60° adjustable.Not applicable to Giant bicycles.The mountain bike stem is constructed of high-strength CNC machined 6061 T6 aluminum alloy.Lightweight and Durable MTB Stem - about 280g

Use the adjustable stem to achieve a more comfortable riding position, the pain caused by the original setup in shoulders/arms/back had to be corrected. This stem and a riser handlebar did the trick, allow you to sit more upright on bike which is better for your back.

Stereer Tube diameter: 28.6mm (1-1/8"), Handlebar Diameter: 31.8mm (1-1/4"), Length: 50mm, Weight: 220g, Degree: 30°

Easy installation, just connect up the original front fork stem. Four bolt bar clamp holds bar securely in position

Constructed of high-strength CNC machined 6061 T6 aluminum alloy.

【BIKE STEM】 - This bike stems features a precision 3D shaped forged shaft interconnected with a precision broached clamp to create the strongest, lightest, most secure adjustable stem available. DIal-in the perfect height for your Handlebars!

【BIKE STEM SIZE】- Sleek aesthetics combine with performance in this Handlebar Stem Suitable for 31.8mm (1-1/4") handlebars, front fork stem diameter 28.6mm (1-1/8") ,Length: 75,95,130mm (center distance of the center of angle disk ),Weight: 320g,Please Confirm Your bike Size Before Your Purchase.

【ADJUSTABLE ANGLE】- -40 angle to +90 angle adjustable according to your habits, the Adjustable Stem It can help you raise or lower the height of the handlebars to improve your position or comfort as you ride. so as to obtain a more comfortable riding experience

EN CITY safety certified

Forged alloy construction

Forged alloy

🚴‍♂️ Stereer Tube Diameter: 28.6mm (1-1/8"), Handlebar Diameter: 31.8mm (1-1/4") OR 25.4 mm (1''), Length: 90mm / 110mm / 120mm / 130mm, Degree: 0-60° Adjustable

🚴‍♂️ Constructed of high-strength 6061 aluminum alloy. Hollow design, Light weight and durable

🚴‍♂️ Four bolt bar clamp holds bar securely in position

Constructed of high strength 6061 T6 aluminum alloy, the handle bar stem is light weight and durable.

Front fork stem diameter: 28.6mm, length: 90mm (center distance of the two holes); handlebar diameter: 25.4mm.

Angle: 0°~60°. It can help to up or down the height of handlebar for a more comfortable ride.

size: 31.8x60mm Angle: 0~+90 adjustable Material: Constructed of high-strength CNC machined 6061 T6 aluminum alloy

Advantages: 1. Two-in-one design of height increaser and bike stem, it saves your money to buy height increaser or bike stem.2. It can be adjusted from 0-90° (you can also think of it as 90-180°). it can be adjusted the height in the maximum range for the handlebar,giving you more riding options.3. The quality is guaranteed. Our shop specializes in selling bicycle accessories, professional factory, more reliable quality.

Made of aluminum alloy , lighter weight, better toughness, no deformation, corrosion resistance, provide security for your outdoor travel.

Material: aluminum alloy

Angle: 0-70° adjustable

Length: 145mm, handlebar diameter: 31.8mm, front fork stem diameter: 28.6mm (1-1/8")

Two Sizes Handlebar diameter : 31.8mm (1-1/4") and 25.4mm(1",With Free Bar Shim), Steerer Tube diameter: 28.6mm (1-1/8"), Stack Height:40mm,Length: 110mm (center distance of the two holes),Rise:+/-10D

Universal short Bike handle bar stem suitable for Most Road Bike, Fixed Gear Bicycle, Mountain Bike, Downhill bike, Track bike, MTB, BMX, DH, etc.

Constructed of high-strength CNC machined 6061 aluminum alloy.

ADJUSTABLE HEIGHT:The stem riser adapter comes with 4 spacers (1×5mm & 3×10mm), can increase the height up to 85mm.you can customise your new riser stem height perfectly for your riding needs.

WIDELY COMPATIBLE: The stem riser is suitable for most bike with 1-1/8''(28.6mm) threadless steerer.Your bike can do more with this mountain bike stem extender.

ALUMINIUM MATERIAL:The steerer tube extender is made from forged 6061 aluminium alloy, super strong and lightweight. A durable bike handlebar riser provides longer and more comfortable riding experiences.

Angle: +/- 7 Degree, Handlebar Diameter: 31.8mm (1-1/4"), fork diameter is 28.6mm (1-1/8")

Weight: 107g (0.24lb), Length: 60mm, This bicycle stem is Lightweight and sturdy, Reduce weight while maintaining strength

The use of sandblasting technology, frosted texture makes the product non-slip wear-resistant and more beautiful

Forged alloy alum construction

Adjustable angle:from 0 Degree to 90 Degree

180mm quill length, 25.4mm bar clamp

Corrosion-Resistant And Durable: Bicycle stem bolt is made of titanium alloy, which is high strength, lightweight, corrosion-resistant and durable

Stronger And Stable: M5 stem bolts with washers, which is stronger and stable

Wide Application: Many applications especially in sports, mountain bike, bicycle, motorcycle, automotive,racing and DIY areas

Perfect Design: Bynccea Bike Stem constructed of precision 3D Forged alloy, to create the strongest, lightest, most secure bicycle adjustable stem available.

Adjustable angle: -70°~ +70°Adjustable Stem can help you raise or lower the height of the handlebar to improve your position or comfort as you ride,so as to obtain a more comfortable riding experience.

Compatibility: Only Fit for Handlebar diameter 31.8mm (1-1/4''), front fork stem diameter 28.6mm (1-1/8") and is available in a range of lengths 90mm, 110mm and 145mm.

Material: aluminum alloy.Packing: 1PC.

Dimensions: Total length: 160mm/6.3inch, bottom diameter (upper diameter): 1 1/8Inch (28.6mm), steering tube diameter: 25.4mm/1inch.

Sturdy, firm and durable.