Top 10 Threadless stem Adapter – Bike Stems

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1. Profile Designs


Profile Design Threadless Size Converter 1", 1 1/8"

Profile Designs #ad - Converts all quill style forks to use threadless stems. Weight: 08 ounce. Converts 1 inch to 1-1/8" threadless.
BrandProfile Designs #ad
ManufacturerProfile Design #ad
Height1.5 Inches
Length5.75 Inches
Weight0.37 Pounds
Width1.25 Inches
Part Number15920002



UPANBIKE Road Mountain Bike Bicycle Stem Riser Adapter 1 1/8" 150mmφ22.2mm Black

UPANBIKE #ad - Converts a threaded quill setup to threadless. Base diameterupper diameter: 1 1/8” 28. 6mm. Raises the height of your handlebars by increasing the height of your stem. Material:Aluminium Alloy. Total length:150mm. Steerer tube diameter:22. 2mm/25. 4mm.
ManufacturerAbuyamoy #ad
Part Number50-155



BNVB Aluminum Alloy Bike Fork Stem Quill Riser Extender Extension Road Mountain Bicycle Stem Head Up Raiser Handlebar Riser Adapter φ28.6mm x 150mm Black 22.2mm

BNVB #ad - Perfect for most bikes: the stem riser is suitable for most bike with 1-1/8''28. 6mm threadless steerer. Easy installation, just connect up the original front fork stem. Size: base diameterupper 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. Material: 6061 aluminium alloy With polished anodized finish, Solid, Secure, Durable.
BrandBNVB #ad
ManufacturerBNVB #ad
Part NumberStemRise-Bk22

4. Origin8


Black, Origin8 Quill Adapter, 22.2/28.6

Origin8 #ad - Allows stem height raise of 1". Al7075-t6 aluminum with a chromoly bolt. Converts a threaded quill setup to threadless.
BrandOrigin8 #ad
ManufacturerOrigin8 #ad
Height6 Inches
Length6 Inches
Weight0.36 Pounds
Width2 Inches
Part Number58565

5. Bavel


Bicycle Stem Adaptor 22.2mm to 28.6mm for 1-1/8" Threadless Stem Black

Bavel #ad - New stem adaptor allows the use of an 1-1/8" threadless stem on a bike with a 1" threaded fork. Length:150mm. Material: weight:164g-176g. Size:22. 2mm to 28. 6mm. Bike types:mountain, Road Bike, BMX, City bike.
BrandBavel #ad
ManufacturerBicycle Stem Adaptor 22.2mm to 28.6mm For 1-1/8" Threadless Stem #ad
Height1 Inches
Length8 Inches
Width2 Inches
Part Numberdms1400012



Panda Software SENQI Bike Threadless Stem Handlebar Fork Stem Adapter 22.2mm Black

SENQI #ad - Process: 3D forging. Size: small head: 22. 2mm, big head: 28. 6mm;. 22. 2mm stem is suitable for the 25. 4mm outer diameter fork steere;. 22. 2 is needed for your 1" steel fork for classic aluminum build;. Material: al6061-t6 aluminum with a chromoly bolt;.
BrandSENQI #ad
ManufacturerCHENGDA Cycing CO;LTD #ad
Part Number43483-9849

7. evo


EVO, Threadless stem quill Adaptor, Fits 28.6mm stem to a 22.2mm Steer Tube

evo #ad - Designed to work with 1-1/8" threadless stems. 02: converts a 1" threaded fork to threadless. 7075 alloy construction with Cr-Mo bolt. 01: converts a 1-1/8" threaded fork to threadless. Provides 1" of additional height extension. Allows threadless stem use on threaded fork.
Brandevo #ad
Manufacturerevo #ad
Height1.3 Inches
Length6.3 Inches
Weight0.4 Pounds
Width4.7 Inches
Part NumberAH-03/28.6X22.2

8. LQ Industrial


LQ Industrial Bike Fork Stem Extender 22.2mm/0.87inch Black Aluminum Alloy Road Mountain Bike Bicycle Stem Riser Adapter for 1 1/8" Threadless Steerer Tubes

LQ Industrial #ad - Use all size suitable bicycles. Working principle: after inserting the heart into the tube, lock the screw rod, the oblique nut and the tube are misaligned due to the oblique opening, so as to expand to achieve the function of tightening the inner wall. Packing: 1PC. Dimensions: total length: 160mm 6. 3in, bottom diameter upper diameter: 1-/8Inch 28. 6mm, steering tube diameter: 22. 2mm 087in. Material: aluminum alloy. Sturdy, corrosion-resistant, durable and can be used for a long time.
BrandLQ Industrial #ad
ManufacturerLQ Industrial #ad
Part NumberBFSERAST-1

9. Deda


1" quill, Deda Spada Quill Bicycle Stem Adapter Black 1" threadless

Deda #ad - Adapts 1" threadless stems to 1" 22. 2mm-id threaded steerer tubes. Will also work on 1-1/8" stems with 1" reducer shim. 142g. Aluminum construction with top-mount bolt/cap.
BrandDeda #ad
ManufacturerDeda #ad
Height6 Inches
Length6 Inches
Weight0.55 Pounds
Width6 Inches
Part NumberSPADA

10. M Part


M:Part Threadless stem Shim Adapter 1-1/8 inch / 28.6 mm to 1 inch / 25.4 mm

M Part #ad - 1in - 1-1/8in 25. 4mm - 28. 6mm. A split aluminium shim that fits over a 25. 4 mm 1 inch steerer tube changing the outer dimension to 28. 6 mm 1-1/8 inch. Black anodised finish with laser etched detail. Allows the use of a stem designed to fit 1-1/8 inch steerer tubes where greater choice is available.
BrandM Part #ad
ManufacturerM:Part #ad
Weight0.09 Pounds
Part NumberSPT100