The 9 Best Fork Stem adapters (2023 reviews)

The wake fork stem adapter is long-lasting, rigid and fits well with your regular usage like a dream. This bike fork stem extender can extend the fork stem by 70 mm maximumly. The riser takes stress off your back and wrists, and because you sit up more, it helps give you a better view of traffic or obstacles. It comes with spacers to get the fit right. The washers allow up and down placement or adjustment prior to tightening down to get just the right height.

The extended stem, along with the separate adjustable riser, help considerably in providing a more comfortable experience in bike riding, without sacrificing control. It is long enough to add additional spacers which you can purchase separately. If you don't feel like you are in control when leaning way forward to stay on your handlebars, there are several adjustments available to get just the right height.

Why We Like This:

Helps with back and shoulder pain on long rides
Super easy install and made bike much more comfortable with a more seated position
Perfect fit and function, appears strong and well made
Good quality materials, light weight,simple install

Best For fixie: UPANBIKE Fork Stem Adapter

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Next on the list, we've got yet another adapter that manages to win our hearts. It's the upanbike fork stem adapter and it's widely considered as one of the best convenient adapter you can buy. This item, a steerer tube adapter, will not significantly increase the height of your handle bars. It's the diameter of the lower part of the stem that inserts into your steerer tube. It will be super helpful to put your new stem on the adapter before putting it on the bike. The cap on this design is flush.

This stem adapter will enable you to use a more modern stem and handlebar for more ride versatility. The adapter functions as expected and holds the threadless stem without any issues.

Why We Like This:

Great inexpensive way to update an older bike
Allowing you the versatility of modern stems and also upgrading your handlebars
Good adapter if you want easily change handlebars
Adapts old stem to new clamps for larger handlebars

Best For Swagtron: Emoly Fork Stem Adapter

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Emoly offers a variety of adapter for personal choice and yet maintaining quality in all the variants. It fits mountain bikes and not road bikes. The bottom stem clamps have something to grab hold of, your stem. The Stem riser can freely adjust the gasket to fit your own height, reducing the pressure of waist effectively and raised to your comfortable position. It includes expansion rings that allow some variable adjustment in the height. It really helps to improve your posture on the bike and is easy to install.

It should work on any bicycle that allows for removal of the handle bars from the stem. It is easy to install and accomplished the task of raising the handlebars. It is a perfect choice for anyone who's looking for a simple way to alleviate any lower back pain that might result from odd riding posture due to low handlebars.

Why We Like This:

Makes bike riding so much more enjoyable
Fashionable and beautiful, with strong quality
New and hot release

Best With threaded Steerer: Origin8 Fork Stem Adapter

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The origin8 fork stem adapter has killer features for the price point. Modern threadless stems have many quality choices often for not a lot. The part of this adapter (the lower part) that inserts into the steerer tube is 22.2mm (7/8”), so the INSIDE diameter of your bike’s steerer tube should measure very, very close to 22.2mm. It looks well-made, and the part where the stem attaches has a nice ridge feel.

The bottom part of this adaptor slides right into a 1" steerer tube & then the top part allows you to clamp a 1 1/8" stem on it. There is a sleeve included that increases the basic shaft outside diameter of 22.2 to 25.4 mm. This is meant for a 1" steer tube. It is great for bringing an old bike up to date.

Why We Like This:

Fits 22.2 mm or threaded 1 inch fork
Perfect upgrade for lower end bikes with 1 inch head tube
Lot of satisfied buyers

Best With Rise: TRIWONDER Fork Stem Adapter

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Triwonder line of adapter come in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs.

Why We Like This:

Easy installation, converts a threaded quill stem setup to threadless
Raises the height of your handlebars by increasing the height of your bike stem
One of the new comers and featured product

Best For Pretty hunched position: Boenoea Fork Stem Adapter

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The boenoea fork stem adapter is capable of outshining several other adapter featured in this list in overall features for the price point. It is great to change a sport/road bike to an upright riding position. It provides a solid 4' rise" of the stem/bars. Spacers allow you to adjust to the desired height. It is easy to install with the loosening of some hex bolts.

The riser is perfect if you’re a tall person over six feet tall and allows you to sit more upright and less stress on lower back. It is suitable for most bike with 1-1/8'' threadless headset. It is easy to install with enough cable (measure your brake/shift cables) before you install it. The Bike stem is easy to install and makes the bike easier to handle and comfortable.

Why We Like This:

Works well, easy but time consuming to install
Excellent idea to use on mountain bikes to extend
Adjustable, so the height is optional

Best Stem extender: Lq industrial Fork Stem Adapter

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The lq industrial fork stem adapter should be able to handle its purpose and duties with ease. It is an excellent way to upgrade your steering system. It is suitable for most bicycles, suitable for most bicycles with 1-1/8 inch (28.6 mm) threadless steering gear. It is easy to install, just connect the original front fork rod. It is perfect for the huffy cranbrook beach cruiser.

Why We Like This:

Sturdy, corrosion-resistant, durable and can be used for a long time
One of the new comers and featured product

Best For MTB: Dioche Fork Stem Adapter

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We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate adapter. The dioche fork stem adapter is exactly that - it's a simple adapter that hits all the right notes. Outdoor is the pursuit of adventure with the whole body to relax, and the dioche bike stem riser aims to provide convenience and safety for your outdoor cycling. Strong in anti-corrosion and rust-free, high toughness and not easy to deform, it has all the advantages that the handlebar riser you want. The bike stem riser can extend the fork stem by 3 mm to 50 mm, which is very practical and useful for use, perfect for mountain bicycle, road bike, and mtb to rise up the handlebar fork stem. When you finish mounting, the stem riser is invisible outside, which keeps your bike more beautiful.

The bike stem extension provides additional stack spacers, you can adjust the height of stem easily by yourself with it, just put the spacers according to your need, then it's finish. This riser is straight forward to install that when finished is sturdy and very secure. It ensures a long time service handling is more flexible, and operation is comfortable and convenient and lightweight, which will add no burden to your bike installation steps.

Why We Like This:

Solid and firm handlebar extender that is hard to loose, more safety when using
Aims to provide convenience and safety for your outdoor cycling
One of the new comers and featured product

Best premium: LITEONE Fork Stem Adapter

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Liteone offers a variety of adapter for personal choice and yet maintaining quality in all the variants. This bike fork stem extender can extend the fork stem by 210 mm maximumly. It is a forged 6061 aluminum alloy material with polished anodized finish, solid, secure, and durable. It can freely adjust the gasket to fit your own height.

Why We Like This: