{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.freeline-skates","code":"thing-q1003792","url":"https://ver.cy/models/thing/q1003792/","name":"Freeline skates","alternateNames":[],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Physical world and living systems","entryKind":"thing","plane":"PHY","domain":["PHY.OBJ"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Freeline skates are a paired skating device consisting of two independent foot platforms, each supported by two wheels and ridden without foot bindings, that allow a rider to coast and generate propulsion through coordinated twisting and lateral movements.","purpose":"Enable an agent to recognise Freeline skates, assess a pair's configuration and condition, and determine whether riding, adjustment or repair is appropriate.","scope":{"in":["Independent footplates and their relationship as a usable pair","Foot contact surfaces, wheel arrangement and mounting geometry","Human-powered propulsion, steering and rider-dependent stopping","Wheel, bearing, axle and deck condition","Configuration-specific operating limits and replacement-part compatibility"],"out":["Freeskating as a sport, its competitions and trick taxonomy","The Freeline company, trademarks and commercial history","Individual product listings, ownership and sales transactions","Protective equipment as separately modelled objects","Skateparks, roads and other riding facilities as places"],"boundaries":[]},"distinguishingFeatures":["A complete riding set has two separate footplates with two wheels each; there is no connecting deck or bar. The broader category is described by [JMKRIDE's FAQ](https://www.jmkride.com/faq).","The rider's shoes rest on the footplates without boot shells or bindings, distinguishing the equipment from ordinary inline and quad skates.","Each foot is supported by its own rolling platform, distinguishing the pair from skateboards and connected caster boards.","Wheel mounting and footplate orientation must be inspected as a freeskate assembly; a generic wheeled furniture dolly does not establish the same riding geometry.","A Freeline mark identifies a claimed brand association, while the independent-footplate form identifies equipment type; these are separate recognition tests."],"structure":{"bundles":[{"id":"equipment-identity-and-pairing","name":"Equipment identity and pairing","description":"Recognise the independent-footplate equipment and resolve what constitutes its pair.","layers":[{"id":"name-and-type-boundary","name":"Name and type boundary","description":"Separate physical recognition from manufacturer attribution.","findings":[{"id":"freeline-name-coverage","name":"Freeline name coverage","description":"Record the physical type independently of the brand claim. [JMKRIDE's Japanese FAQ](https://jmkride.jp/faqs) distinguishes Freeline-branded equipment from the broader freeskate category; the registry's intended coverage still needs confirmation.","questions":[{"text":"Does this registry entry denote original Freeline-branded skates or all equipment with the freeskate form?","id":"freeline-name-coverage-q01","kind":"boundary"},{"text":"Which markings or manufacturer records support this pair's claimed identity?","id":"freeline-name-coverage-q02","kind":"provenance"}]}]},{"id":"pair-assembly","name":"Pair assembly","description":"Identify the two plates and their intended relationship.","findings":[{"id":"compatible-footplates","name":"Compatible footplates","description":"Record plate identity, orientation markings and relevant differences before accepting two plates as a pair.","questions":[{"text":"Do markings or instructions assign a left/right or forward orientation to these plates?","id":"compatible-footplates-q01","kind":"definition"},{"text":"Are the two plates compatible in wheel size, mounting geometry and intended model configuration?","id":"compatible-footplates-q02","kind":"measurement"}]}]}]},{"id":"shoe-contact-and-rolling-geometry","name":"Shoe contact and rolling geometry","description":"Describe the interfaces between the rider, each footplate and the ground.","layers":[{"id":"unbound-foot-support","name":"Unbound foot support","description":"Capture the usable standing area and grip surface.","findings":[{"id":"shoe-placement-and-retention","name":"Shoe placement and retention","description":"Assess shoe support and grip without assuming a binding retains the rider's foot.","questions":[{"text":"What usable contact area and intended shoe position does each plate provide?","id":"shoe-placement-and-retention-q01","kind":"measurement"},{"text":"Does worn, detached or contaminated grip require cleaning or replacement before riding?","id":"shoe-placement-and-retention-q02","kind":"action"}]}]},{"id":"wheel-layout","name":"Wheel layout","description":"Describe rolling direction, support geometry and clearance per plate.","findings":[{"id":"rolling-axis-and-clearance","name":"Rolling axis and clearance","description":"Record axle spacing, wheel dimensions and mounting orientation together rather than treating wheel diameter as sufficient.","questions":[{"text":"What are the wheel dimensions, axle spacing and rolling-axis angle relative to each footplate?","id":"rolling-axis-and-clearance-q01","kind":"measurement"},{"text":"Does the fitted wheel configuration preserve clearance from the deck and mounting hardware?","id":"rolling-axis-and-clearance-q02","kind":"measurement"}]}]}]},{"id":"rider-motion-and-control","name":"Rider motion and control","description":"Model the controls supplied through body movement and independent footplate motion.","layers":[{"id":"propulsion-and-steering","name":"Propulsion and steering","description":"Record the human input and configuration needed to initiate and direct motion.","findings":[{"id":"coordinated-plate-motion","name":"Coordinated plate motion","description":"Capture documented propulsion and steering techniques as operating requirements, with rider capability recorded separately from equipment condition.","questions":[{"text":"Which manufacturer or instructor material explains propulsion and steering for this configuration?","id":"coordinated-plate-motion-q01","kind":"provenance"},{"text":"Can the intended rider start, maintain plate coordination and turn in the proposed practice setting?","id":"coordinated-plate-motion-q02","kind":"action"}]}]},{"id":"stopping-and-foot-release","name":"Stopping and foot release","description":"Establish how the rider controls speed and separates from the plates.","findings":[{"id":"verified-stopping-capability","name":"Verified stopping capability","description":"Do not infer a brake from the word skate or assume stepping off is adequate at every speed.","questions":[{"text":"What stopping provisions and techniques are documented for this pair?","id":"verified-stopping-capability-q01","kind":"definition"},{"text":"Has the rider demonstrated controlled stopping in comparable conditions before entering the proposed route?","id":"verified-stopping-capability-q02","kind":"action"}]}]}]},{"id":"riding-envelope","name":"Riding envelope","description":"Relate the pair's limits to rider loading, surface conditions and available space.","layers":[{"id":"load-and-intended-use","name":"Load and intended use","description":"Separate documented equipment limits from assumptions based on appearance.","findings":[{"id":"variant-specific-limits","name":"Variant-specific limits","description":"Attach load and use restrictions to the identified variant; leave absent ratings unknown.","questions":[{"text":"What rider load limit and intended-use restrictions does the actual manufacturer document?","id":"variant-specific-limits-q01","kind":"provenance"},{"text":"Does proposed jumping, impact loading or other use exceed the documented scope?","id":"variant-specific-limits-q02","kind":"boundary"}]}]},{"id":"surface-and-runout","name":"Surface and runout","description":"Assess the ground and space in which the two plates will roll.","findings":[{"id":"route-suitability","name":"Route suitability","description":"Record slope, debris, discontinuities, moisture and unobstructed stopping space without inventing universal thresholds.","questions":[{"text":"What slope, cracks, debris and surface contamination occur along the intended riding area?","id":"route-suitability-q01","kind":"measurement"},{"text":"Given wheel condition and demonstrated stopping capability, should this area be used, restricted or avoided?","id":"route-suitability-q02","kind":"action"}]}]}]},{"id":"paired-condition-and-service","name":"Paired condition and service","description":"Maintain both individual assemblies and their behaviour as a pair.","layers":[{"id":"fault-assessment","name":"Fault assessment","description":"Inspect the load-bearing and rolling parts of each plate.","findings":[{"id":"asymmetric-wear-and-damage","name":"Asymmetric wear and damage","description":"Compare both plates for wheel wear, rolling resistance, looseness and structural damage while retaining component-level observations.","questions":[{"text":"How do wheel wear, bearing drag and axle play differ within and between the two plates?","id":"asymmetric-wear-and-damage-q01","kind":"measurement"},{"text":"Which observed cracks, deformation or loose components require withdrawal from riding pending repair?","id":"asymmetric-wear-and-damage-q02","kind":"action"}]}]},{"id":"replacement-and-return-to-use","name":"Replacement and return to use","description":"Verify service compatibility and post-service function.","findings":[{"id":"compatible-service-configuration","name":"Compatible service configuration","description":"Match replacement interfaces and manufacturer requirements, then verify retention, clearance and rolling function on both plates.","questions":[{"text":"Which documented bearing, axle, spacer and wheel interfaces must replacement parts match?","id":"compatible-service-configuration-q01","kind":"measurement"},{"text":"After service, have both plates passed the applicable fastening, clearance and functional checks?","id":"compatible-service-configuration-q02","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-confidence-notes","name":"Check these first","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these check these first hold for the sense of Freeline skates this model covers, and on what evidence?","id":"evidence-confidence-notes-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these real-world use hold for the sense of Freeline skates this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-failure-modes-and-hazards","name":"Failure modes and hazards","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of Freeline skates this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Recalled without web access and unsourced; every item is a lead to verify.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of Freeline skates this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Identify a pair of freeline skates and check wheels, bearings and platform grip tape.","Advise a rider to wear a helmet and protective pads before riding."],"mustNot":["Encourage riding in traffic, on steep descents or on wet surfaces where the rider cannot stop safely.","Present a pair with cracked platforms, loose axles or worn wheels as safe to ride.","Suggest a child rides without supervision and protective equipment.","Describe the skates as having brakes or bindings they do not have."],"requiresHuman":["Approving a damaged pair for continued use after a repair.","Letting a young or inexperienced rider use them in a public space."]},"ethics":{"considerations":["The skates have no brakes or bindings, so falls are common and riders must accept that risk knowingly.","Riders share pavements with pedestrians who did not choose that risk."],"affectedParties":["Riders, especially children","Pedestrians","Parents and carers"]},"owners":{"steward":"The person who owns and rides the pair.","roles":[],"masterSystems":[]},"relations":[{"target":"Q768186","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.freeline-skates","Wikidata: Q1003792 (https://www.wikidata.org/wiki/Q1003792)"]},"properties":{"applicability":"required","items":["Pair completeness and orientation: complete compatible pair | single plate | mismatched pair | orientation unresolved","Manufacturer and model attribution: identified manufacturer/model and supporting markings or documentation | unknown","Usable footplate dimensions: length and width in mm, measured over the usable shoe-contact area","Wheel geometry: diameter, width and axle spacing in mm, recorded per plate","Wheel mounting orientation: angle in degrees relative to a declared footplate axis, with left/right convention","Wheel material and hardness: material and manufacturer-declared hardness with scale | unknown","Foot contact condition: secure dry grip | worn | peeling | wet or contaminated | unassessed","Rolling and structural condition: record wheel damage, bearing drag or play, fastener security, deck cracks and deformation separately","Documented rider load limit: kg, with manufacturer source and whether the limit applies to the pair or one plate | unknown","Stopping provision: documented mechanical provision | rider technique only | modified | unknown"]},"recognition":{"applicability":"required","items":["Two separate small platforms, each with two inline wheels under the centre.","No straps, bindings or connecting deck between the two units.","Grip tape on the top surface and a short wheelbase on each platform."]},"capabilities":{"applicability":"required","items":["Identify whether two plates form a compatible riding pair and establish their intended orientation.","Assess foot contact, rolling freedom and structural integrity before use.","Relate a configured pair to a proposed surface, slope and rider control capability.","Select compatible wheels, bearings and grip replacements using measured interfaces and model documentation.","Flag a damaged or incompletely identified pair for inspection before returning it to riding."]},"hazards":{"applicability":"required","items":["Falls when a wheel catches a crack or stone, since the rider has no brake.","Wrist, head and ankle injuries in falls without protective gear.","Collisions with pedestrians on shared paths."]},"interfaces":{"applicability":"required","items":["Harmonized System subheading 9506.70, issued by the World Customs Organization, covers roller skates for customs classification."]},"context":{"applicability":"required","items":["These independent two-wheel foot platforms are used for recreational skating on smooth paved surfaces.","Riders use coordinated twisting and lateral movements to generate motion, turn and perform tricks.","They are encountered in skating areas and other locations where wheeled recreation is permitted."]}},"sources":[{"title":"Wikidata item Q1003792: Freeline skates","url":"https://www.wikidata.org/wiki/Q1003792","note":"identity and sense of the item"},{"title":"Wikipedia: Freeskates","url":"https://en.wikipedia.org/wiki/Freeskates","note":"general description of the item"}],"openQuestions":["Does vr.tr.freeline-skates intentionally cover the generic freeskate equipment kind, or only products sold under the Freeline name?","Which original Freeline manuals establish variant-specific dimensions, orientation, rider limits and maintenance requirements?","Which equipment standards, if any, explicitly cover unbound independent two-wheel footplates, and what evidence supports compliance for each variant?","Which replacement parts are demonstrably compatible across original Freeline variants and later freeskate designs?","What authoritative guidance establishes stopping methods and usable surface or slope limits without generalising from an individual rider's skill?"],"resources":{"spec":"/models/things/publications/thing-q1003792/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q1003792/spec.json"],"providers":["Codex"],"researchStatus":"unreviewed","generatedAt":"2026-09-12T09:52:42Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"filled","interaction.recognition":"filled","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T10:10:25+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass"},"score":1.0}}