Delivering to:
Collecting from:

Seatposts

Dropper Posts & Spare Parts

Seat Post Clamps

Compare (0/5)

Not sure what sized bike is best?

Answer a few short questions and we'll make a recommendation on which size is best for you.

BPW Alloy Seat Post 27.2mm
43% Off Full Price Clearance

BPW

BPW Alloy Seat Post 27.2mm

$14.00 Full price
$14.00
Club price
$24.99 Full price
TranzX Multi Position Ergonomic Dropper Lever 22.2mm Clamp

Trans X

TranzX Multi Position Ergonomic Dropper Lever 22.2mm Clamp

$48.00 Full price
$48.00
Club price
$49.95 Full price
Skyscraper Seatpost Black 30.4mm

BBB

Skyscraper Seatpost Black 30.4mm

$59.00 Full price
$59.00
Club price
$64.99 Full price
BC Seat Clamp with Rear Rack Mounting Points 31.8mm
23% Off Full Price

Bikecorp

BC Seat Clamp with Rear Rack Mounting Points 31.8mm

$19.00 Full price
$19.00
Club price
$24.99 Full price
Shimano SL-MT500 Seatpost Lever Left Clamp Band

Shimano

Shimano SL-MT500 Seatpost Lever Left Clamp Band

$35.00 Full price
$35.00
Club price
$39.99 Full price
TranzX Replacement Cartridge for YSP23/YS105/YSP39 170mm Travel

Trans X

TranzX Replacement Cartridge for YSP23/YS105/YSP39 170mm Travel

$68.00 Full price
$68.00
Club price
$69.95 Full price
TranzX YSP23/YSP39J/YSI05 Replacement Cartridge 150mm Travel

Trans X

TranzX YSP23/YSP39J/YSI05 Replacement Cartridge 150mm Travel

$69.00 Full price
$69.00
Club price
$76.00 Full price
BBB The Strangler Seat Clamp 31.8mm
28% Off Full Price

BBB

BBB The Strangler Seat Clamp 31.8mm

$10.00 Full price
$10.00
Club price
$13.99 Full price
BBB The Strangler Seat Clamp 34.9mm
28% Off Full Price

BBB

BBB The Strangler Seat Clamp 34.9mm

$10.00 Full price
$10.00
Club price
$13.99 Full price
Seat Post Clamp Carrier Mount 28.6mm

BPW

Seat Post Clamp Carrier Mount 28.6mm

$17.00 Full price
$17.00
Club price
$17.99 Full price
OneUp Components V2 Dropper Post Cartridge 180mm
16% Off Full Price

OneUp Components

OneUp Components V2 Dropper Post Cartridge 180mm

$100.00 Full price
$100.00
Club price
$119.99 Full price
BBB The Strangler Seat Clamp 28.6mm
28% Off Full Price

BBB

BBB The Strangler Seat Clamp 28.6mm

$10.00 Full price
$10.00
Club price
$13.99 Full price
BPW Alloy Micro-Adjust Seat Post 30.4 x 400mm Black

BPW

BPW Alloy Micro-Adjust Seat Post 30.4 x 400mm Black

$37.00 Full price
$37.00
Club price
$39.99 Full price
BPW Seatpost 25.4 x 400mmm Black
33% Off Full Price

BPW

BPW Seatpost 25.4 x 400mmm Black

$10.00 Full price
$10.00
Club price
$14.99 Full price
BPW Rear Carrier/Seatpost Clamp 34.9mm
34% Off Full Price Clearance

BPW

BPW Rear Carrier/Seatpost Clamp 34.9mm

$15.00 Full price
$15.00
Club price
$23.00 Full price
Funn UpDown Remote Dropper Post Lever

FUNN

Funn UpDown Remote Dropper Post Lever

$79.00 Full price
$79.00
Club price
$87.99 Full price
Skyscraper Seatpost Black 28.6mm

BBB

Skyscraper Seatpost Black 28.6mm

$40.00 Full price
$40.00
Club price
$44.99 Full price
BPW Micro-Adjust Alloy Seatpost 25.4x350mm Black

BPW

BPW Micro-Adjust Alloy Seatpost 25.4x350mm Black

$28.00 Full price
$28.00
Club price
$29.99 Full price
BBB Skyscraper Seat Post 30.6 x 400mm Black
24% Off Full Price Clearance

BBB

BBB Skyscraper Seat Post 30.6 x 400mm Black

$49.00 Full price
$49.00
Club price
$64.99 Full price
BBB Skyscraper Seat Post Black 30.8mm

BBB

BBB Skyscraper Seat Post Black 30.8mm

$59.00 Full price
$59.00
Club price
$64.99 Full price
BPW Seat Post 27.2mmx200mm Black
30% Off Full Price Clearance

BPW

BPW Seat Post 27.2mmx200mm Black

$14.00 Full price
$14.00
Club price
$20.00 Full price
TranzX J22.2 Dropper Post Lever 2 x 22.2mm Clamp

Trans X

TranzX J22.2 Dropper Post Lever 2 x 22.2mm Clamp

$34.00 Full price
$34.00
Club price
$34.95 Full price
BPW Tapered Seat Post Sleeve for 27.2 - 31.8mm Seatposts
24% Off Full Price Clearance

BPW

BPW Tapered Seat Post Sleeve for 27.2 - 31.8mm Seatposts

$9.00 Full price
$9.00
Club price
$11.99 Full price
BPW Alloy Seat Post 30.9 x 400mm Micro-Adjust Black

BPW

BPW Alloy Seat Post 30.9 x 400mm Micro-Adjust Black

$39.00 Full price
$39.00
Club price
$39.99 Full price
Bike Lane Pivotal Seatpost 22.2mm (400mm)
53% Off Full Price Clearance

BPW

Bike Lane Pivotal Seatpost 22.2mm (400mm)

$14.00 Full price
$14.00
Club price
$29.99 Full price
BPW Seatpost 25.4mm Steel Silver 400mm
16% Off Full Price

BPW

BPW Seatpost 25.4mm Steel Silver 400mm

$25.00 Full price
$25.00
Club price
$29.99 Full price
Micro-adjust Alloy Seatpost 30.6 x 400mm Black

BPW

Micro-adjust Alloy Seatpost 30.6 x 400mm Black

$23.00 Full price
$23.00
Club price
$24.99 Full price
Cruzee Seatpost Quick Release Clamp

Cruzee

Cruzee Seatpost Quick Release Clamp

$19.00 Full price
$19.00
Club price
$19.99 Full price
Cult Pivotal Post Black

Cult

Cult Pivotal Post Black

$79.00 Full price
$79.00
Club price
$89.99 Full price
BBB Skyscraper Seatpost Black 31.4 x 400mm
53% Off Full Price Clearance

BBB

BBB Skyscraper Seatpost Black 31.4 x 400mm

$30.00 Full price
$30.00
Club price
$64.99 Full price
BPW Alloy Seat Post 25.4 x 400mm Micro Adjust Silver
23% Off Full Price Clearance

BPW

BPW Alloy Seat Post 25.4 x 400mm Micro Adjust Silver

$19.00 Full price
$19.00
Club price
$24.99 Full price
Rockshox Barb Connector Tool Reverb Stealth

Rockshox

Rockshox Barb Connector Tool Reverb Stealth

$6.00 Full price
$6.00
Club price
$7.00 Full price
Cruzee Seatpost Short
29% Off Full Price Clearance

Cruzee

Cruzee Seatpost Short

$14.00 Full price
$14.00
Club price
$19.99 Full price
PRO QR Seat Clamp Black 34.9mm
19% Off Full Price Clearance

Pro

PRO QR Seat Clamp Black 34.9mm

$12.00 Full price
$12.00
Club price
$14.99 Full price
PRO QR Seat Clamp Black 31.8mm
16% Off Full Price

Pro

PRO QR Seat Clamp Black 31.8mm

$10.00 Full price
$10.00
Club price
$11.99 Full price
BPW Seat Post Clamp 34.9mm Black
33% Off Full Price Clearance

BPW

BPW Seat Post Clamp 34.9mm Black

$10.00 Full price
$10.00
Club price
$14.99 Full price

Find Your Size

Step 1: Measure your height

  • Take off your shoes
  • Stand with your back straight against a wall
  • Balance a book on your head to mark your height on the wall
  • Measure your height by the distance from the floor to the mark
cm

Find Your Size

Step 2: Adjust your inseam

  • Based on your height, we’ve calculated a starting point.
  • You can measure your inseam by tucking a book between your legs so there is pressure but it isn’t uncomfortable.
  • Inseam typically falls with 5cm of the average.
cm

Find Your Size

Your results

For the we suggest the following size.

More comfort More speed
Height: --
Inseam: --
Adjusted Height: --

Find Your Size

We have saved your measurements.

Recommended sizes will now be highlighted on the page.

BMX Steatposts

Most Popular Brands

5% BEST PRICE GUARANTEE

5% BEST PRICE GUARANTEE

We beat any price by 5%
CLICK AND COLLECT

CLICK AND COLLECT

Live stock availability
CLUB 99 MEMBERSHIP

CLUB 99 MEMBERSHIP

Exclusive club benefits
FREE SHIPPING OVER $149*

FREE SHIPPING OVER $149*

*Excluding bikes/bulky items

99 Bikes acknowledges the Traditional Custodians of the Land on which we live, work and ride, and pay respects to Elders past and present

Welcome Here
Australian Aboriginal Flag
Torres Strait Islander Flag
Acknowledgement flag