Throttle-cable RFQs: housing length and free length are independent
A request to make a throttle cable longer is incomplete without defined measurement references.
A request to make a throttle cable longer is incomplete without defined measurement references. Housing length and inner-wire free length describe different features. For a modified Chinese-engine motorcycle or scooter, identify the actual controls and carburetor or throttle body instead of relying only on the original vehicle model.
Define the purchasing decision
Use an authorized drawing or sample record that defines endpoints, units, adjuster state, both end fittings and each length independently. Preserve known changes in controls or carburetion. The responsible product owner must supply the required dimensions; purchasing coordination should not calculate operating free length or invent a tolerance from photographs.
Compare the supplier replies
Illustrative replies: A adds the same increment to housing and free length although the request changed only the housing. B quotes one total length but omits its endpoints and adjuster state. Neither response preserves the drawing basis. Return a marked drawing query, rather than accepting a reassuring statement that the cable is longer.
Original buyer worksheet
| Record | Buyer evidence | Supplier response / decision |
|---|---|---|
| Current assembly | Actual controls and carburetor / throttle body | Preserve modification record |
| Housing length | Authorized endpoints and units | Answer separately |
| Free length | Its own datum and adjuster state | No copied increment |
| End fittings | Both ends and drawing revision | No visual substitution |
| Supplier deviations | Marked drawing questions | Responsible owner resolves design |
Source and scope
Motion Pro’s custom-cable guidance requests drawings and distinguishes housing/free lengths, fittings and adjusters. It also notes that changed controls or carburetion affect the information needed. This illustrates drawing completeness; it does not set design dimensions or imply that our sourcing service manufactures or approves cables. Official primary source.
Keep procurement approval and technical acceptance separate. A quotation, complete pack or matching photograph does not establish fit, safety, durability or permission to install. The responsible product or service provider must resolve application questions. Named manufacturer examples illustrate documents; they are not supply offers, affiliations or validation of an unnamed alternative.
Prepare a reviewable request
Quote the authorized drawing with independent housing and free-length definitions, adjuster state and both fittings. Mark missing dimensions or proposed changes on the drawing; do not infer routing or operating dimensions. Reference and approved revision: [ ]. Required quantity and unit: [ ]. Destination: [ ]. Available photos or source documents: [ ]. Please mark exclusions, deviations and missing evidence separately from the price.
Keep the supplier’s exact reference and dated reply with the approved scope. Ask for a revised consolidated quotation if a later message changes contents, configuration or unit. Record product price, applicable MOQ, packing and lead time as the supplier’s response to this request, not as a general promise. Independent buying coordination does not replace the responsible technical decision.
Continue the purchasing path
Product category · Evidence and identification guide · Send a sourcing request
Buyer questions
What should be clarified before the price is compared?
Use an authorized drawing or sample record that defines endpoints, units, adjuster state, both end fittings and each length independently. Preserve known changes in controls or carburetion. The responsible product owner must supply the required dimensions; purchasing coordination should not calculate operating free length or invent a tolerance from photographs.
Can this worksheet approve a part or a repair?
No. It organizes the purchasing evidence and the supplier’s unanswered questions. Technical acceptance, repair scope and installation remain separate decisions for the responsible qualified provider.
Sources
Discuss a sourcing request related to this article.Throttle-cable RFQs: housing length and free length are independent
Prepare a clearer buying request
Keep this page as context. Add what you know; review everything before sending. No purchase is made at this step.
Edit the checklist below before continuing. It stays a planning note; it does not approve a product or order.
- Current assembly
- Housing length
- Free length
- End fittings
- Supplier deviations