Seat Posts

The correct seat post diameter is essential. To check which size you need (assuming you have your old post), pretty well every post is stamped with the diameter just under the minimum insertion line (in the bottom 100mm or so). If measuring a post or frame, use vernier calipers and take several measurements at different angles to allow for distortion.

Kalloy Seat Post Silver 400mm

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A 400mm long seat pillar with true microadjustability (no notches).

Shipping Weight: 350g.

Kalloy Top Nut for Seat Post

1785
!
Replacement top nut for some micro-adjust seat posts. Handy if you strip the thread out of yours.
Weight: 7g.

RockShox Collar for Reverb Post

 
2591
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This collar clamps onto the upper part of a RockShox Reverb dropper post to pre-set the post's "dropped" position.
Shipping Weight: 50g.

Seat Post 22.2mm x 430mm

68590
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Seat pillar for old-fashioned BMX bikes, or, cut down, for various current children's bikes.

Chrome plated. Weight: 320g.

Suspension Post 30.9 x 350mm

2365
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A pillar to fit modern alloy frames that doesn't require a shim.
 Weight: 597g.

Suspension Seat Post 25.4 x 350mm

1069
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Silver alloy seat post with 25mm of suspension.

 25.4mm diameter. 350mm from bottom to rail clamp.

Weight: 465g.

XTech Seat Post 400mm Black

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A 400mm long seat pillar with true microadjustability (no notches).
Yes, it's the same as the "Kalloy Seat Post Black 400mm" but had the XTech logo painted on. We're stocking the XTech due to occasional patchy supply of the Kalloy post.

XTech Seat Post 400mm Silver 27.4

2579
!
A 400mm long seat pillar with true microadjustability (no notches).
Shipping Weight: 350g.