20 Best Threadless Quill Stem Adapter – Sports & Outdoors [2024]

Threadless Quill Stem Adapters are a great way to customize your Threadless Quill Stem to fit your extensions. Threadless Quill Stem Adapters are available for all Threadless Quill Stem extensions.

Are you looking for the best Threadless Quill Stem Adapter? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling Threadless Quill Stem Adapter.

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# Preview Product
1 Profile Designs Threadless Converter (1-1/8-Inch) Profile Designs Threadless Converter (1-1/8-Inch)
2 Origin8 Quill Adapter, 22.2/28.6, Black Origin8 Quill Adapter, 22.2/28.6, Black
3 New Silver 21.1mm (0.83') Aluminum Threadless QUILL STEM Adapter Bike Bicycle New Silver 21.1mm (0.83") Aluminum Threadless QUILL STEM Adapter Bike Bicycle
4 Profile Design Threadless Size Converter (1' - 1 1/8') Profile Design Threadless Size Converter (1" - 1 1/8")
5 TRIWONDER Stem Riser Adapter Aluminum Alloy Bike Fork Stem Quill Riser Extender Extension Road... TRIWONDER Stem Riser Adapter Aluminum Alloy Bike Fork Stem Quill Riser Extender Extension Road...
6 UPANBIKE Road Mountain Bike Bicycle Stem Riser Adapter 1 1/8' 150mm*φ22.2mm Black UPANBIKE Road Mountain Bike Bicycle Stem Riser Adapter 1 1/8" 150mm*φ22.2mm Black
7 EVO, Threadless stem quill adaptor, Fits 28.6mm stem to a 22.2mm steer tube EVO, Threadless stem quill adaptor, Fits 28.6mm stem to a 22.2mm steer tube
8 Deda Spada Quill Bicycle Stem Adapter (Black) 1' threadless - 1' quill Deda Spada Quill Bicycle Stem Adapter (Black) 1" threadless - 1" quill
9 Bicycle Stem Adaptor 22.2mm to 28.6mm for 1-1/8' Threadless Stem (Black) Bicycle Stem Adaptor 22.2mm to 28.6mm for 1-1/8" Threadless Stem (Black)
10 Follde New Silver 21.1mm (0.83') Aluminum Threadless QUILL STEM Adapter Bike Bicycle Follde New Silver 21.1mm (0.83") Aluminum Threadless QUILL STEM Adapter Bike Bicycle
11 evo Threadless Stem Quill Adaptor, Fits 28.6mm Stem to a 22.2mm Steer Tube evo Threadless Stem Quill Adaptor, Fits 28.6mm Stem to a 22.2mm Steer Tube
12 shamjina Bike Threadless Quill Stem Adapter Road Folding Stem Riser 22.2/ .4mm shamjina Bike Threadless Quill Stem Adapter Road Folding Stem Riser 22.2/ .4mm
13 Taoyu MTB stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy Bicycle... Taoyu MTB stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy Bicycle...
14 Baskinshine Silver 22.2mm (0.87') Aluminum Threadless Bike Fork Stem Quill Riser Extender Extension... Baskinshine Silver 22.2mm (0.87") Aluminum Threadless Bike Fork Stem Quill Riser Extender...
15 Aillsa Aluminum Threadless QUILL STEM Adapter Silver 21.1mm (0.83') Aillsa Aluminum Threadless QUILL STEM Adapter Silver 21.1mm (0.83")
16 KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy... KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy...
17 KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy... KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy...
18 F Fityle Mountain Bike Quill Adapter Stem Adaptor Riser 22.2/25.4mm to 28.6mm Extender Extend... F Fityle Mountain Bike Quill Adapter Stem Adaptor Riser 22.2/25.4mm to 28.6mm Extender Extend...
19 KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy... KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy...
20 KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy... KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy...
Bestseller No. 1
Profile Designs Threadless Converter (1-1/8-Inch)
  • Country Of Origin : Taiwan
  • The Package Height Of The Product Is 1 Inches
  • The Package Length Of The Product Is 1 Inches
  • The Package Width Of The Product Is 1 Inches
Bestseller No. 2
Origin8 Quill Adapter, 22.2/28.6, Black
  • AL7075-T6 aluminum with a chromoly bolt
  • Converts a threaded quill setup to threadless
  • Allows stem height raise of 1"
Bestseller No. 3
New Silver 21.1mm (0.83") Aluminum Threadless QUILL STEM Adapter Bike Bicycle
  • Product Description: Aluminum Threadless Quill Stem Adapter (For Ahead) Fork Steerer Inside Diameter: 21.1mm/ 0.83" Ahead Diameter (Stem Clamp):...
Bestseller No. 4
Profile Design Threadless Size Converter (1" - 1 1/8")
  • Converts all quill style forks to use threadless stems
  • Converts 1 inch to 1-1/8" threadless
  • Weight: 0.8 ounce
Bestseller No. 5
TRIWONDER Stem Riser Adapter Aluminum Alloy Bike Fork Stem Quill Riser Extender Extension Road...
  • ✅ Material - 6061 Aluminium Alloy With polished anodized finish
  • ✅ Size - Base Diameter(Upper diameter): 1 1/8” (28.6mm); Steerer tube diameter: 22.2mm/25.4mm; Total Length: 150mm
  • ✅ Rise the height of your handlebars by increasing the height of your stem
  • ✅ Easy installation, converts a threaded quill setup to threadless
  • ✅ Perfect for Most Bikes: The quill riser extender is suitable for most bike with 1-1/8''(28.6mm) threadless steerer
Bestseller No. 6
UPANBIKE Road Mountain Bike Bicycle Stem Riser Adapter 1 1/8" 150mm*φ22.2mm Black
  • Raises the height of your handlebars by increasing the height of your stem.Material:Aluminium Alloy
  • Converts a threaded quill setup to threadless
  • Base Diameter(Upper diameter): 1 1/8” (28.6mm)
  • Total Length:150mm
  • Steerer tube diameter:22.2mm/25.4mm
SaleBestseller No. 7
EVO, Threadless stem quill adaptor, Fits 28.6mm stem to a 22.2mm steer tube
  • 7075 alloy construction with Cr-Mo bolt
  • 7075 alloy construction with Cr-Mo bolt
  • Allows threadless stem use on threaded fork. Provides 1" of additional height extension
  • Designed to work with 1-1/8" threadless stems
  • -01: Converts a 1-1/8" threaded fork to threadless
SaleBestseller No. 8
Deda Spada Quill Bicycle Stem Adapter (Black) 1" threadless - 1" quill
  • Adapts 1" threadless stems to 1" (22.2mm-ID) threaded steerer tubes
  • Aluminum construction with top-mount bolt/cap. 142g
  • Will also work on 1-1/8" stems with 1" reducer shim
Bestseller No. 9
Bicycle Stem Adaptor 22.2mm to 28.6mm for 1-1/8" Threadless Stem (Black)
  • New Stem Adaptor allows the use of an 1-1/8" threadless stem on a bike with a 1" threaded fork
  • Bike Types:mountain, BMX, Road Bike, City bike
  • Size:22.2mm to 28.6mm
  • Length:150mm
  • Material: Weight:164g-176g
Bestseller No. 10
Follde New Silver 21.1mm (0.83") Aluminum Threadless QUILL STEM Adapter Bike Bicycle
  • ✔️Premium Quality: This part is a top quality, generic aftermarket replacement part. We use high-quality and highly durable materials to extend...
  • ✔️Items Description: Silver 21.1mm (0.83") Aluminum Threadless Bicycle Stem Riser Adapter This is a substitute for the manufacturer. The...
  • ✔️SIMPLE AND EASY TO INSTALL: Wear work gloves to protect your hands. Just install it and adjust the height by adjusting the screw.
  • ✔️Product specifications: Aluminum Threadless Bicycle Stem Riser Adapter(For Ahead) Fork Steerer Inside Diameter: 21.1mm/ 0.83" Ahead Diameter...
  • ✔️If for any reason, you decide not to be satisfied, you can ask for replacement or full refund, no problem! If you are not sure whether this kit...
Bestseller No. 11
evo Threadless Stem Quill Adaptor, Fits 28.6mm Stem to a 22.2mm Steer Tube
  • 7075 Alloy Construction With Chromoly Bolt
  • Allows Threadless Stem Use On Threaded Fork
  • Designed To Work With 1-1/8" Threadless Stems
  • Converts A 1-1/8" Threaded Fork To Threadless
  • Provides 1" Of Additional Height Extension
Bestseller No. 12
shamjina Bike Threadless Quill Stem Adapter Road Folding Stem Riser 22.2/ .4mm
  • [Converts] Converts mountain bicycle/ folding threadedless quill setup to threadless.
  • [Raises The Height] Raises the height of your handlebars by increasing the height of your stem.
  • [Easy Installing] and flexible
  • [High Strength And Lightweight] This premium quill stem adapter riser made of high quality aluminum alloy- sturdy, solid, high strength but...
  • [Widely Application] Apply to 25.4mm to 28.6mm and 22.2mm to 28.6mm Front Tube
Bestseller No. 13
Taoyu MTB stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy Bicycle...
  • 👍: Made of high-strength aluminum alloy, it is strong and durable, and increases the height of the handlebar by increasing the height of the stem.
  • 👍: Fits 25.4mm to 28.6mm and 22.2mm to 28.6mm fork head tubes.
  • 👍: Converts a mountain bike/folding threadless socket setup to threadless.
  • 👍: Easy installation and flexible operation, just connect the original front fork.
  • 👍: This premium socket rod adapter riser is made of high quality aluminum alloy - strong, strong, high strength yet light weight.
SaleBestseller No. 14
Baskinshine Silver 22.2mm (0.87") Aluminum Threadless Bike Fork Stem Quill Riser Extender Extension...
  • 1.Size:22.2*150MM,Total Length:150mm .
  • 2. This Bike handlebar riser is made of aluminium alloy material with polished anodized finish,solid and durable.
  • 3.Rise the height of your handlebars by increasing the height of your stem .
  • 4.WIDELY COMPATIBLE: Don't worry about buying a handlebar adapter that doesn't fit your bike.Our Bike Fork Stem Extender suitable for most Bike 1-1/8...
  • 5.High toughness handlebar extender that is hard to loose, more safety when use.Work on Mountain Bike, Road Bike, MTB, BMX,and more.
Bestseller No. 15
Aillsa Aluminum Threadless QUILL STEM Adapter Silver 21.1mm (0.83")
  • Part Type:Adapter. Stem Type:Quill Stem Adapter.
  • Model:STE2838S.
  • Material:Aluminum Alloy. Color:Silver.
  • Item Length:150mm. Steerer Tube Diameter:21.1mm. Handlebar Clamp Diameter:28.6mm. Weight: 155 grams (+- 10 g).
  • Aluminum Threadless Quill Stem Adapter (For Ahead). Fork Steerer Inside Diameter: 21.1mm/ 0.83" . Ahead Diameter (Stem Clamp): 28.6mm (1 1/8"). 28.6mm...
Bestseller No. 16
KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy...
  • 👍: Made of high-strength aluminum alloy, it is strong and durable, and increases the height of the handlebar by increasing the height of the stem.
  • 👍: Fits 25.4mm to 28.6mm and 22.2mm to 28.6mm fork head tubes.
  • 👍: Converts a mountain bike/folding threadless socket setup to threadless.
  • 👍: Easy installation and flexible operation, just connect the original front fork.
  • 👍: This premium socket rod adapter riser is made of high quality aluminum alloy - strong, strong, high strength yet light weight.
Bestseller No. 17
KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy...
  • 👍: Made of high-strength aluminum alloy, it is strong and durable, and increases the height of the handlebar by increasing the height of the stem.
  • 👍: Fits 25.4mm to 28.6mm and 22.2mm to 28.6mm fork head tubes.
  • 👍: Converts a mountain bike/folding threadless socket setup to threadless.
  • 👍: Easy installation and flexible operation, just connect the original front fork.
  • 👍: This premium socket rod adapter riser is made of high quality aluminum alloy - strong, strong, high strength yet light weight.
Bestseller No. 18
F Fityle Mountain Bike Quill Adapter Stem Adaptor Riser 22.2/25.4mm to 28.6mm Extender Extend...
  • Easy installing, operation and flexible
  • Raises the height of your handlebars by increasing the height of your stem.
  • Qualified aluminum alloy quill stem adapter riser, sturdy, solid, high strength but lightweight
  • Apply to 25.4mm to 28.6mm and 22.2mm to 28.6mm Front Fork Head Tube
  • Converts mountain / folding threadedless quill setup to threadless.
Bestseller No. 19
KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy...
  • 👍: Made of high-strength aluminum alloy, it is strong and durable, and increases the height of the handlebar by increasing the height of the stem.
  • 👍: Fits 25.4mm to 28.6mm and 22.2mm to 28.6mm fork head tubes.
  • 👍: Converts a mountain bike/folding threadless socket setup to threadless.
  • 👍: Easy installation and flexible operation, just connect the original front fork.
  • 👍: This premium socket rod adapter riser is made of high quality aluminum alloy - strong, strong, high strength yet light weight.
Bestseller No. 20
KOSHSH Bicycle stem Bicycle Quill Stem Adapter 22.2-25.4mm Bike Stem Extender Threadless Alloy...
  • 👍: Made of high-strength aluminum alloy, it is strong and durable, and increases the height of the handlebar by increasing the height of the stem.
  • 👍: Fits 25.4mm to 28.6mm and 22.2mm to 28.6mm fork head tubes.
  • 👍: Converts a mountain bike/folding threadless socket setup to threadless.
  • 👍: Easy installation and flexible operation, just connect the original front fork.
  • 👍: This premium socket rod adapter riser is made of high quality aluminum alloy - strong, strong, high strength yet light weight.

Having trouble finding a great Threadless Quill Stem Adapter?

This problem is well understood by us because we have gone through the entire Threadless Quill Stem Adapter research process ourselves, which is why we have put together a comprehensive list of the best Threadless Quill Stem Adapters available in the market today.

After hours of searching and using all the models on the market, we have found the best Threadless Quill Stem Adapter for 2023. See our ranking below!

How Do You Buy The Best Threadless Quill Stem Adapter?

Do you get stressed out thinking about shopping for a great Threadless Quill Stem Adapter? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching Threadless Quill Stem Adapter, which is why we have assembled a comprehensive list of the greatest Threadless Quill Stem Adapter available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for Threadless Quill Stem Adapter that you consider buying. Your questions might include the following:

  • Is it worth buying an Threadless Quill Stem Adapter?
  • What benefits are there with buying an Threadless Quill Stem Adapter?
  • What factors deserve consideration when shopping for an effective Threadless Quill Stem Adapter?
  • Why is it crucial to invest in any Threadless Quill Stem Adapter, much less the best one?
  • Which Threadless Quill Stem Adapter are good in the current market?
  • Where can you find information like this about Threadless Quill Stem Adapter?

We’re convinced that you likely have far more questions than just these regarding Threadless Quill Stem Adapter, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for Threadless Quill Stem Adapter, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible Threadless Quill Stem Adapter. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an Threadless Quill Stem Adapter buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available Threadless Quill Stem Adapter currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of Threadless Quill Stem Adapter has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an Threadless Quill Stem Adapter?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your Threadless Quill Stem Adapter.
  5. Customer Ratings: Number ratings grade Threadless Quill Stem Adapter objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their Threadless Quill Stem Adapter.
  7. Product Quality: You don’t always get what you pay for with an Threadless Quill Stem Adapter, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an Threadless Quill Stem Adapter is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining Threadless Quill Stem Adapter information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding Threadless Quill Stem Adapter is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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