ISO 4210-9:2014 pdf free
ISO 4210-9:2014 pdf free.Cycles一Safety requirements for bicycles
This part of ISO 4210 specifies saddle and seatpost test methods for ISO 4210-2.
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 4210-1, Cycles一Safety requirements for bicycles一Part 1: Terms and definitions
ISO 4210-2:2014, Cycles一Safety requirements for bicycles一Part 2: Requirements for city and trekking, young adult, mountain and racing bicycles
ISO 4210-3:2014, Cycles一Safety requirements for bicycles一Part 3: Common test methods
For the purposes of this document, the terms and definitions given in ISO 4210-1 apply.
If a suspension seat-post is involved, the test may be conducted with the suspension system either free to operate or locked. If it is locked, the pillar shall be at its maximum length.
With the seat- post correctly assembled to the bicycle frame at minimum insertion depth of the seat-post (as specified in ISO 4210-2:2014, 4.16.2), and the clamps tightened to the torque recommended by the bicycle manufacturer, apply a force of F1 vertically downwards at a point 25 mm from either the front or rear of the saddle, whichever produces the greater torque on the saddle clamp. The saddle shall be positioned in the seat-post clamp assembly as defined by the saddle manufacturer’s rail markings or instructions. Maintain this force for 1 min. Remove this force and apply a lateral force of F2 horizontally at a point 25 mm from either the front or rear of the saddle and maintain this force for 1 min, whichever produces the greater torque on the clamp (see Figure 1). The forces are given in Table 1. The fixture shall be such that it does not damage the surface of the saddle.
Position the saddle in its maximum rearward direction as defined by the saddle manufacturer’s rail markings or instructions, into a suitable fixture representative of a seat-post clamp assembly. Tighten the clamps to the torque recommended by the bicycle manufacturer, and apply forces of 400 N in turn under the rear and nose of the saddle cover, as shown in Figure 2, ensuring that the force is not applied to any part of the chassis of the saddle. The load application point is on the longitudinal plane of the saddle at 25 mm from the back (front) of the saddle. If the saddle design is such that it cannot accept a centreline.ISO 4210-9 pdf download.
