Ragley Blue Pig Dropper Post: Diameter Is Only the First Check
The Ragley Blue Pig dropper post record gives a clear starting point: the 2021 complete bike lists a 31.6mm Brand-X Ascend with internal routing. Its travel changes with frame size, while the frame table lists a 34.9mm seat clamp. Those figures describe different parts of the setup. They do not establish whether any replacement dropper will fit the actual frame and rider.
Ragley Blue Pig dropper post: Separate post diameter, collar and travel
The original travel entries are 125mm for Small, 150mm for Medium and 170mm for Large and Extra-Large. The post diameter remains 31.6mm across those entries. The separate 34.9mm clamp figure belongs to the frame’s seat collar. Do not substitute the collar dimension when searching for a post, or treat the stock travel as a measurement of the seat tube.
Ragley’s contact FAQ explicitly asks owners to check the post’s fit and the required amount of drop because dropper lengths vary. That matters even when diameter matches. A replacement with the same travel designation is not necessarily the same overall shape or length as the original Ascend. The saved frame table does not provide a maximum insertion-depth figure to resolve that question.
Confirm the frame and rider requirements
Establish the exact frame size and year before comparing a replacement with the stock list. An inherited or second-hand post may already differ from the catalogue. Ask for the actual post model and its documentation, and have the available frame insertion and riding position assessed. Avoid using a photograph or the bike’s size letter as proof that a longer post can be inserted safely.
The 2021 geometry table gives seat-tube lengths of 380, 420, 460 and 500mm across Small to Extra-Large. Those are published frame dimensions, not usable dropper insertion limits. Treating them as empty space inside the tube would add information the manufacturer has not supplied. A workshop can evaluate the actual frame and post together rather than relying on that shortcut.
Keep routing and controls in the enquiry
Internal routing is documented for this Blue Pig, but a routing description does not identify every remote, cable or replacement part. Include the installed post and control identity in an enquiry, especially where either has been changed. Ask for the correct instructions for that particular product instead of assuming all internally routed posts are serviced or fitted in the same way.
For family context, visit the Ragley topic and the existing Ragley introduction. A useful finished record states the confirmed frame, post diameter, actual model, approved insertion and rider setup separately. That makes the archived travel figures informative while leaving the final replacement decision dependent on the real assembly rather than a catalogue assumption.
FAQ
What diameter is the original 2021 post?
The published Brand-X Ascend entry is 31.6mm, with internal routing.
Does 170mm travel mean 170mm insertion depth?
No. Travel and insertion describe different things; the archive does not give a maximum insertion-depth figure.
Can every size use the same replacement travel?
The stock travels vary by size, and an actual frame, post and rider fit check is still required.
Sources
Check the archived 2021 Blue Pig dropper diameter, seat-clamp size and size-specific original travel without confusing travel with insertion depth. Sources checked 28 October 2026: 2021 standard Blue Pig record (https://www.ragleybikes.com/products/blue-pig-hardtail-bike-2021); manufacturer contact FAQ (https://www.ragleybikes.com/pages/contact).
Photograph credits and permissions
Photograph 1
Original title: Ragley mmmBOP
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License / permission: CC BY 2.0 Generic
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