{
 "version": "2026-10-20",
 "license": "Dimension sheets: CC BY 4.0. Standard and published-size files: CC BY 4.0. Xem Studio's own designs (files_license = Xem Studio Design License): free to use and sell things from, not to redistribute as files — https://xemstudio.com/license/. Other publishers' files: their own license, linked beside them.",
 "slug": "droop",
 "name": "Droop (downstop)",
 "kind": "standard",
 "category": "Car design",
 "group": "Suspension geometry",
 "year": null,
 "question": "What is droop on an RC car?",
 "tags": [
  "vehicle design",
  "suspension geometry",
  "rc design",
  "aerodynamics",
  "guide"
 ],
 "aliases": [
  "droop",
  "rc droop",
  "downstop",
  "droop screw",
  "suspension downtravel",
  "droop setting",
  "rear droop",
  "front droop",
  "droop gauge"
 ],
 "overall_mm": {
  "length": null,
  "width": null,
  "height": null
 },
 "official_cad": false,
 "xem_status": "not-scanned",
 "les": false,
 "free_files": 0,
 "url": "https://xemstudio.com/objects/droop/",
 "sheet_txt": "https://xemstudio.com/objects/droop/sheet.txt",
 "sheet": {
  "basis": "Design rules and figures from the cited sources; example geometry by Xem Studio",
  "overall_mm": {
   "length": null,
   "width": null,
   "height": null
  },
  "notes": [
   "Droop is how far the suspension extends below ride height, set with droop screws (Tekno). More front droop lets the nose rise on throttle and shifts weight back for exit traction; more rear droop gives more entry steering but less braking stability.",
   "Less droop suits smooth tracks and quick direction changes; more suits bumps and jump landings. EuroRC suggests adding 2-4 mm for rough surfaces."
  ],
  "table": {
   "columns": [
    "parameter",
    "value or range",
    "source"
   ],
   "rows": [
    [
     "Rough-track change",
     "+2-4 mm droop",
     "EuroRC set-up guide"
    ],
    [
     "Left/right",
     "must match",
     "Tekno; EuroRC"
    ]
   ]
  }
 },
 "sheet_text": "Droop (downstop) — dimension sheet\nSource: Xem Studio, https://xemstudio.com/objects/droop/  (sheet CC BY 4.0)\nBasis: Design rules and figures from the cited sources; example geometry by Xem Studio\nCatalog version: 2026-10-20\n\nSizes: see table below\n- Droop is how far the suspension extends below ride height, set with droop screws (Tekno). More front droop lets the nose rise on throttle and shifts weight back for exit traction; more rear droop gives more entry steering but less braking stability.\n- Less droop suits smooth tracks and quick direction changes; more suits bumps and jump landings. EuroRC suggests adding 2-4 mm for rough surfaces.\n\nparameter  value or range  source\nRough-track change  +2-4 mm droop  EuroRC set-up guide\nLeft/right  must match  Tekno; EuroRC\n\nFiles elsewhere (not hosted by Xem Studio; license as stated by the publisher):\n- Tekno RC: Tekno RC Setup Guide — web — Publisher's page; dimensions are facts — https://teknoforums.com/misc/Tekno-RC-Setup-Guide.pdf\n- EuroRC: Short set-up guide — web — Publisher's page; dimensions are facts — https://www.eurorc.com/page/135/short-set-up-guide\n\nNo true-size file yet: the published figures do not fix the whole shape; a measured scan is planned.\nAPI: https://xemstudio.com/api/geometry?object=droop\n",
 "sources": [
  {
   "publisher": "Tekno RC",
   "title": "Tekno RC Setup Guide",
   "url": "https://teknoforums.com/misc/Tekno-RC-Setup-Guide.pdf",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  },
  {
   "publisher": "EuroRC",
   "title": "Short set-up guide",
   "url": "https://www.eurorc.com/page/135/short-set-up-guide",
   "formats": [
    "web"
   ],
   "license": "Publisher's page; dimensions are facts",
   "license_verified": true,
   "hosted": false
  }
 ],
 "xem": {
  "status": "not-scanned",
  "sheet_free": true,
  "mesh_price_usd": null,
  "step_price_usd": null,
  "tolerance_mm": null
 },
 "related": [
  "camber",
  "caster",
  "kick-up",
  "toe-front",
  "toe-rear",
  "ackermann"
 ],
 "fits": [],
 "dimensions": "exact (nominal, no printing tolerance)",
 "dimension_rule": "All geometry on Xem Studio is exact (nominal, true size) with no printing tolerance. Where a part meets another part, the object lists its mating features (feature, exact size, what it mates with, fit class: press, slide, run, socket, clamp or designed). Apply your process's allowance to those features only; 'designed' gaps are part of the design and stay as drawn.",
 "mating": [],
 "faq": [
  {
   "q": "Smooth track?",
   "a": "Less droop for responsiveness (Tekno)."
  }
 ],
 "files_license": null,
 "offers": [],
 "markdown": "https://xemstudio.com/objects/droop/index.md"
}