- Shop
- Parts
- Seats, Posts, Clamps
- Seatposts
Contact Modern Bike via email, telephone, or showroom visit.
learn more
You may check the order status of a recent purchase to learn if it has been delayed, when it may ship, or if it has already been shipped.
check order status
Your Shopping Cart contains 0 products. View your cart to change product quantities, apply deal codes, or checkout.
Sort
Showing 738 products:
X-Fusion Manic 30.9mm Dropper Post 125mm with Remote 
BuyPART NUM 613134
The X-Fusion Manic post uses internal cable routing and was designed around a low-profile seat cradle and seal collar to fit a broad range of frames. … read more
In Store
Ships Freeyour price $199.99 + ships free
BuyPART NUM 613134 
KS LEV 30.9 Adjustable Height Post 385 125mm Black with Remote
4.7 of 5
( 14 )
4.7 of 5 stars average
( 14 reviews )
BuyPART NUM 266703
Black hard anodized stanchion Micro adjustable head clamp with Titanium bolts Carbon Handlebar Remote Recourse ultralight … read more
4.7 of 5
( 14 )
4.7 of 5 stars average
( 14 reviews )
$61 offretail $439.00 your price $378.00 + ships free
BuyPART NUM 266703 
X-Fusion Manic 30.9mm Dropper Post 150mm with Remote BuyPART NUM 585744
The X-Fusion Manic post uses internal cable routing and was designed around a low-profile seat cradle and seal collar to fit a broad range of frames. … read more
your price $229.99 + ships free
BuyPART NUM 585744 
Profile Design FFC Fast Forward Carbon Seatpost 
Choose
Special clearance pricing may apply - use offer code H12K0 This unique Carbon bladed seatpost effectively changes a 73 degree seat tube angle frame … read more
your price $179.99 + ships free
Choose 
Profile Design Fast Forward Seatpost
4.5 of 5
( 2 )
4.5 of 5 stars average
( 2 reviews )
Choose
The Fast Forward Aluminum is a triathlon and time trial specific seatpost that, when used with a standard road geometry frame, allows the rider to obtain … read more
4.5 of 5
( 2 )
4.5 of 5 stars average
( 2 reviews )
your price $119.99 + ships free
Choose 
Whisky 7 Seatpost 27.2x400mm 0mm Offset Matte Carbon BuyPART NUM 225907
The No.7 seatposts are made from the highest quality materials to be durable, lightweight and comfortable. Whether you're remounting during the cross … read more
your price $95.00 + ships free
BuyPART NUM 225907 
Tamer Weekender 25.4 x 350 mm Suspension Seatpost BuyPART NUM 163734
Anti-swivel system to remove unwanted seat rotation 20mm offset, 125mm minimum height, 255mm maximum height Seatpost Diameter: 25.4 mm Length: 350 … read more
6% offretail $39.95 your price $37.55 + ships free
BuyPART NUM 163734 
Thomson Elite Seatpost Black 30.9 mm x 410 mm
5 of 5
( 2 )
5 of 5 stars average
( 2 reviews )
BuyPART NUM 972863
Over 40% stronger on ultimate strength test than the strongest production seatposts on the market. Over double the fatigue life of any other production … read more
5 of 5
( 2 )
5 of 5 stars average
( 2 reviews )
your price $99.95 + ships free
BuyPART NUM 972863 
Cane Creek Thudbuster ST Suspension Seatpost
4.8 of 5
( 6 )
4.8 of 5 stars average
( 6 reviews )
Choose
The Thudbuster ST presents all the benefits of the original Thudbuster LT design in a smaller package. The Thudbuster ST uses a shorter parallel-linkage … read more
4.8 of 5
( 6 )
4.8 of 5 stars average
( 6 reviews )
Black454 g, 489 g27.2 mm Diameter, 25.4 mm Diameter, 30.9 mm Diameter, 31.6 mm Diameter350 mm Length, 400 mm Length, 353 mm Length10 mm OffsetAluminumSuspensionStandard
your price $164.00 + ships free
Choose 
FSA K-Force MTC 27.2mm 350mm SB-25 Seat Post
BuyPART NUM 242730
Forged alloy minimal top clamp (MTC) One piece continuous carbon construction Includes removable Di2 battery adapter 210 grams … read more
$33 offretail $219.99 your price $186.99 + ships free
BuyPART NUM 242730 
Cane Creek Thudbuster LT Seatpost
4.7 of 5
( 21 )
4.7 of 5 stars average
( 21 reviews )
Choose
By adding the Thudbuster LT rear suspension you'll ride faster, longer, and stronger with better traction, more control, and less fatigue. The performance … read more
4.7 of 5
( 21 )
4.7 of 5 stars average
( 21 reviews )
Black545 g25.4 mm Diameter, 26.8 mm Diameter, 27.2 mm Diameter, 30.9 mm Diameter400 mm Length, 450 mm Length25 mm OffsetAluminumSuspensionStandard
$16 off $152.10 to $169.00 + ships free
Choose 
KS eTEN i 31.6mm 125mm Travel Dropper Seatpost BuyPART NUM 513722
The internally routed eTan Integra brings Internally routed droppers to a more attainable price. A specific eTen hydraulic cartridge, single bolt offset … read more
$17 offretail $170.00 your price $153.00 + ships free
BuyPART NUM 513722 
KS Supernatural 31.6 Post 385/125mm Remote
4 of 5
( 1 )
4 of 5 stars
( 1 review )
BuyPART NUM 963122
Kindshock Height-Adjust Seatposts Micro-adjust, zero offset clamp Infinitely-adjustable ride height Carbon remote replaces an … read more
4 of 5
( 1 )
4 of 5 stars
( 1 review )
$30 offretail $305.00 your price $274.50 + ships free
BuyPART NUM 963122 
Thomson Elite Seatpost Black 26.6 mm x 330 mm
5 of 5
( 1 )
5 of 5 stars
( 1 review )
BuyPART NUM 829737
Over 40% stronger on ultimate strength test than the strongest production seatposts on the market. Over double the fatigue life of any other production … read more
5 of 5
( 1 )
5 of 5 stars
( 1 review )
your price $99.95 + ships free
BuyPART NUM 829737 
Thomson Masterpiece Seatposts Black Choose
The Thomson Masterpiece Seatpost is not for everyone. We at Thomson wanted to create the best seatpost possible without regard to cost. The … read more
Black158 g, 199 g27.2 mm Diameter, 30.9 mm Diameter, 31.6 mm Diameter240 mm Length, 330 mm Length, 350 mm Length0 mm OffsetAluminumRigidStandard
your price $149.95 + ships free
Choose 
KS LEV Integra 31.6 Height Adjust Seatpost 385/125mm Remote BuyPART NUM 458564
KS LEV Integra Height-Adjust Seatposts Alloy remote lever with internally routed cable Zero offset standard rail Black anodized … read more
$117 offretail $395.00 your price $277.99 + ships free
BuyPART NUM 458564 
FSA SL-K SB0 Seatpost 27.2x400mm BuyPART NUM 217903
Carbon fiber mast bonded to 6061 aluminum clamp/head Patent pending head design Independent Top Clamp (ITC) offers independent adjustability … read more
$18 offretail $119.99 your price $101.99 + ships free
BuyPART NUM 217903 
Woodman GT2 XL Carbo Seatpost, 30.9 X 450mm 3K BuyPART NUM 859365
Extra-long carbon fiber tube with 6061 aluminum cradle and CrMo bolts Tested to highest standards, with carbon reinforcement rings to prevent … read more
your price $90.96 + ships free
BuyPART NUM 859365 
Wald Pillar Seatpost Silver 13/16x18" (457.2mm) BuyPART NUM 512402
Description: #920-18 Outer Diameter: 13/16" w/5/8 Top Length: 18" Color: Chrome Plated Material: Steel … read more
your price $6.78
BuyPART NUM 512402 
KS Supernatural 31.6 Post 435/150mm Remote
4 of 5
( 1 )
4 of 5 stars
( 1 review )
BuyPART NUM 242953
Kindshock Height-Adjust Seatposts Micro-adjust, zero offset clamp Infinitely-adjustable ride height Carbon remote replaces an … read more
4 of 5
( 1 )
4 of 5 stars
( 1 review )
$36 offretail $366.00 your price $329.40 + ships free
BuyPART NUM 242953 
Thomson is leading with innovative design for two primary markets - aerospace and cycling.
"The world's best choose Cane Creek. A key element of Cane Creek's mission is to support the sport of cycling, including racing, charitable activities and cycling advocacy. Cane Creek believes strongly in the power of bicycles and their potential to effect positive change in our society. To that end, Cane Creek supports athletes and teams whose purpose encompasses more than competitive racing, such as getting more people on bikes, improving or promoting a healthy lifestyle, and making our world better through the use of a bike."
"We move forward with a desire to deliver the best possible components to our customers and a determined spirit of competition."
"Moots has been building high-performance bike frames since 1981. Each is meticulously fashioned out of premium US-made titanium tubing, allowing us to design every bike to the specific needs of the frame style and individual rider. Our purposeful design philosophy, our knowledge of the unique characteristics of titanium, and our relentless focus on craftsmanship come together in the creation of true lifetime bikes-whether your preference is asphalt, dirt or both."
fi'zi:k is a racing brand. It represents beauty, speed, passion, freedom for those who race against each other, race against the clock and for enthusiast cyclists around the world who identify with the feeling of the fire of competition.
"At Salsa, we believe a sense of adventure makes life better. The bicycle can be so much more than just a bike; it's a path to new places, new people, and amazing experiences."
Dimension makes quality components to repair or custom-fit the vast majority of bikes being ridden today, and provide the accessories that make them fun to ride.
"W-T-P have always taken a lot of pride in ourselves and in building bikes that are capable of taking everything a rider throws at them. We are constantly at the forefront of developing and manufacturing materials that will with stand hard and furious riding and our designs are made to combat common breaks and bends."
We define color as the main color of the item. It may have accents or highlights in other colors.
Weight
In Store products are available to view in our showroom. In Store orders usually ship the same or next business day.
These models are available for online purchasing and can be shipped directly to you.
The seatpost diameter must match to the seat tube diamater of your frame. If replacing a seatpost, you can usually find this measurement etched near the bottom of your current post.
Seatpost length is measured in millimeters. It is typically measured from the bottom of the post to the center of the rail mount.
Offset is often referred to as setback. This is the distance in mm that the clamp is offset from the center of the seatpost.
On a dropper post, this is the distance that the post will drop.
Dropper posts have the ability to change heights. This has become a choice for mountain bike riders that prefer multiple riding positions.
Clamp Style
Material
Rigid seatposts are the most common type of seatpost with no suspension or dropping capability.
Suspension seatposts are designed with comfort in mind.
Weight
Buy this product and your entire order ships for free.
Some orders are inelligible for delivery discounts. See offer details for disqualifying products and destinations.