Dahon Folding Bike Spare Parts: Name the K9 Components Precisely
Dahon folding bike spare parts enquiries become more precise when they name the individual component rather than a whole drivetrain brand. On the current USA K9 page, a Shimano cassette is listed alongside DAHON shifting components. A request for a Shimano K9 gear system could therefore describe the published bicycle inaccurately.

Build the Dahon folding bike spare parts enquiry from separate rows
The K9 table names a Shimano CS-HG400 11–28T cassette, DAHON RD-M310 nine-speed rear derailleur and DAHON SL-M310C nine-speed shifter. Its chainring entry is DAHON MP-316G-PT, 55T with a 170 mm crank. These names locate the documented equipment more closely than the promotional Shimano nine-speed heading.
Use the names as an original-build reference, then identify what is actually fitted to the bicycle needing attention. An earlier replacement or another regional version can change the enquiry. The manufacturer page does not inspect that bicycle or guarantee that its listed stock part is an available replacement today.
Separate a shifting issue from a part order
Explain whether the concern is a damaged component, an unidentified part or a shifting problem. Include the readable markings and the symptoms. Those requests can require different responses; a familiar component name does not establish that buying a new derailleur is the answer to every shifting complaint.
Do not borrow the Neos procedure for the K9
DAHON's linked Service Instructions PDF bears a 2012 copyright notice. Its later pages describe the specifically named Neos derailleur, including its low-profile arrangement and adjustment information. The current K9 table names RD-M310, not Neos. The existence of a DAHON service document does not make that historical procedure applicable to the K9.
The international FAQ directs parts and support questions first to the dealer or original retailer. Its broad statement that most parts are standard includes exceptions for the frame, fork and handlepost. That is a support route, not confirmation that any nominally similar component is interchangeable.
Give the supplier a concrete model reference
BestBicycle lists this model as Dahon K9 Bike — Silver-4-Bearing. Pair that listing identity with the separately attributed USA component record and the actual bicycle's markings. The distinction helps the supplier see which information came from a catalogue and which came from the machine being repaired.
The exhibition K9 photograph shows a rear derailleur and exposed drivetrain. It is useful recognition context, but it cannot confirm every part number or establish the service history of a different bicycle. Obtain a compatible replacement specification before placing a parts order; this article provides no adjustment or retrofit instructions.
FAQ
Does the detailed K9 table name a Shimano derailleur?
No. It names DAHON RD-M310 nine-speed, while the cassette is Shimano CS-HG400.
Does the 2012 Neos guide approve K9 adjustment?
No. It addresses a differently named derailleur and does not establish K9 applicability.
Where does DAHON direct the initial enquiry?
Its international FAQ identifies the dealer or original retailer as the first contact.
The Dahon family introduction can help orient an uncertain model name. Bring that identification back to the brand directory before treating a component request as a complete-bicycle choice.
Manufacturer references checked 3 November 2026: k9 (https://usa.dahon.com/products/k9), global faq (https://dahon.com/support/FAQ), service instructions (https://cdn.shopify.com/s/files/1/0701/1637/6877/files/English-Service-Instructions.pdf?v=1676239142).
Photograph credits and permissions
Photograph 1
Original title: Dahon K9, Eurobike 2025, Frankfurt am Main (P1048231).jpg
Creator: Matti Blume; creator URI: https://commons.wikimedia.org/wiki/User:MB-one
Copyright notice: CC-BY-SA 2.0+ Matti Blume; Embedded Adobe Color profile copyright notice: © 2018 Adobe Systems, Inc. This is the profile notice recorded in the file, not a statement of photograph authorship.
Original source URI: https://commons.wikimedia.org/wiki/File:Dahon_K9,_Eurobike_2025,_Frankfurt_am_Main_(P1048231).jpg
License / permission: CC BY-SA 4.0
License / permission URI: https://creativecommons.org/licenses/by-sa/4.0/
Modification notice: Source XMP records conversion from Panasonic raw (P1048231.RW2) to JPEG saved to a new location, prior Adobe Photoshop Lightroom Classic 14.4 processing, and distortion and lateral chromatic-aberration corrections marked applied. Other earlier edits are unverified. The original image file is unchanged by this publisher.
Source disclaimer: This material is licensed to the public under the Creative Commons Attribution-ShareAlike 4.0 International License http://creativecommons.org/licenses/by-sa/4.0/ No endorsement by the photographer or manufacturer is implied. No warranties are supplied by the licence; other rights may apply.