Best Altaline in 2026

Bolt Size: Size: M5 x 13mm

Alloy Material Bicycle Seat Clamp

Additional Bracket To Add Bicycle Rear Rack Carrier

115mm x 9mm

Replacement Spring & Bolt For Spring Forks

Available in Chrome & Gold

Diameter 25.4mm

Spring-Suspension Seat Post

Steel Plated Bicycle/Bike Seat Post

For 20" Bicycles

Overall Length: 17"

Clamp Size: 7/8 Inch (22.2mm)

Width: 27-1/4 Inch

Rise: 8-1/4 Inch

Universal Bracket Attatched To Frame

Used To Install Your Bicycle Chainguard

Complete Bracket With Bolts & Nuts

Chain Compatibility: 1/2" X 1/8" (Single Speed)

25 Teeth Alloy Chainring/Sprocket

Chrome Bicycle Spring Fork

For 29" Bicycles

Steerer: Threaded 1" (22.2mm ID)

Chain Compatibility: 1/2 X 1/8

Crank Compatibility: 1pc Crank

Teeth: 36t

The seatpost clamp should match the diameter of the seat tube on your frame and not the diameter of the seatpost itself.

The M5 bolt includes spherical washer and mates with a cylindrical anchor barrel. This means that threads are always perfectly aligned, preventing binding and ensuring consistent clamping force.

Lightweight 6061 T6 aluminum, M5 stainless steel bolt with integrated washer

The seatpost clamp should match the diameter of the seat tube on your frame and not the diameter of the seatpost itself.

The M5 bolt includes spherical washer and mates with a cylindrical anchor barrel. This means that threads are always perfectly aligned, preventing binding and ensuring consistent clamping force.

Lightweight 6061 T6 aluminum, M5 stainless steel bolt with integrated washer

The seatpost clamp should match the diameter of the seat tube on your frame and not the diameter of the seatpost itself.

The M5 bolt includes spherical washer and mates with a cylindrical anchor barrel. This means that threads are always perfectly aligned, preventing binding and ensuring consistent clamping force.

Lightweight 6061 T6 aluminum, M5 stainless steel bolt with integrated washer

The seatpost clamp should match the diameter of the seat tube on your frame and not the diameter of the seatpost itself.

The M5 bolt includes spherical washer and mates with a cylindrical anchor barrel. This means that threads are always perfectly aligned, preventing binding and ensuring consistent clamping force.

Lightweight 6061 T6 aluminum, M5 stainless steel bolt with integrated washer

Quick & easy to install, strong and durable, lightwieght composite material

EASY TO INSTALL KIDS REPLACMENT SADDLE

STEEL RAIL DESIGN

INCLUDES SEAT POST CLAMP

Forged alloy shaft

Anodized finish

Laser etched graphics

𝐒𝐄𝐂𝐔𝐑𝐄 - When you’re sitting with full weight on your seat post and saddle you don’t want the post constantly slipping. A high quality quick adjust seat post clamp ensures your seat post is secure and centrally aligned. To ensure the seat post clamp stays positioned at the top of you frame we use a small internal notch inside the clamp to ensure placement. This prevents the need for over-tightening and damaging your bike frame as well as ensuring a quality bicycle component.

𝐀𝐃𝐉𝐔𝐒𝐓𝐀𝐁𝐋𝐄 - If your bike is used for a variety of styles of riding you want the ability to quickly lower or heighten your seat post without an Allen key. Unclip the quick release clamp, adjust the seat post height, centrally align the saddle, and lock the quick release into position. With the quick release bolt, you can tighten safely up to 5Nm. Never over-tighten as this can damage your bike frame. Before buying always measure your bicycle frames seatpost inner and outer diameter.

𝐂𝐎𝐌𝐏𝐀𝐓𝐈𝐁𝐈𝐋𝐈𝐓𝐘 - When fitting a new quick release seat post clamp it is extremely important to order the correct size diameter to match your bike frame. Failure to do so can mean a poorly fitting and performing seat post clamp.

Ergonomic design,Extended lever, more efficient and comfortable qr seatpost clamp .

Hollow design ,Retain strength,and keep it lightweight approx 40g.

Aluminium alloy bike seat clamp,Sandblasting anodizing surface.

PLATT Bicycle Quick Release seatclamp is a durable and lightweight alternative to add some beautiful color to your ride, and makes adjusting seatpost height a breeze.

Hollow design, lightweight, Only about 39g (34.9 Clamp)

Comes anodized in Black, Blue, Gold,Red and Silver,colorfast surface,great anti-corrosion

Thomson

Seatpost Clamps

Seatpost Clamp

✅【MATERIAL】The bicycle seatpost clamp is made of high-quality aluminum alloy, with a smooth and exquisite appearance, anti-wear and practical

✅【28.6 CLAMP】28.6mm Bicycle Quick Release seat clamp is suitable for 27.2mm bicycle seatposts

✅【34.9 CLAMP】34.9mm Bicycle seatpost clamp is suitable for 30.8 / 31.6mm bicycle seatposts

Bronze bushing for smooth lever action

Low-profile ergonomic lever

Stainless steel bolt with spherical washer

Durable and Sturdy

Inside diameter: 7/8"

Simple packaging to reduce waste

Quick release design which allows you to adjust your bike seat height quickly and easily.

Material: Alloy Construction; Compatible to road bike and mountain bike.

Smooth cam action lever. Extruded CNC machined alloy nut.

✅【MATERIAL】The bicycle seatpost clamp is made of high-quality aluminum alloy, with a smooth and exquisite appearance, anti-wear and practical

✅【28.6 CLAMP】28.6mm Bicycle Quick Release seat clamp is suitable for 27.2mm bicycle seatposts

✅【34.9 CLAMP】34.9mm Bicycle seatpost clamp is suitable for 30.8 / 31.6mm bicycle seatposts

Forged alloy construction

Integrated seat clamp

Micro adjust seat clamp

Quick release design allows you to quickly and easily adjust the height of the bicycle seat

Do not need any accessories, screw it onto the seat tube, the locking force is strong, not easy to fall off

Axle diameter: About 8mm; screw rod length: 65mm; weight: 38g

Material: Aluminum Alloy. Diameter:31.8mm and 34.9mm.Diameter refer to seat post tube diameter not the seat post.

Aluminum Quick Release Bike Seat Clamp.strong sleek retaining bolts

strong sleek retaining bolts ensure it to be double sturdy and firm.

Note: Please read our SIZE Comparison table carefully and choose the right size for your bike.

Weight: 38g. Material: 7005 Aluminum Alloy. Inner Diameter: 34.9mm

Aluminum Quick Release Bike Seat Clamp-34.9 mm.

ANODIZED - Chemically applied color finish for maximum durabilty.

6061 ALUMIUM ALLOY: For strength and weight savings

SIZING: 31.8mm Seat Post Clamp fits on the outer frame diameter of 27.2mm.