Freeline skates
Enable an agent to recognise Freeline skates, assess a pair's configuration and condition, and determine whether riding, adjustment or repair is appropriate.
Bundle → Layer → Finding → Questions Filled
6 bundles · 11 layers · 14 findings · 24 questions
Equipment identity and pairing Recognise the independent-footplate equipment and resolve what constitutes its pair.
Name and type boundary
Separate physical recognition from manufacturer attribution.
Freeline name coverage
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.
- Does this registry entry denote original Freeline-branded skates or all equipment with the freeskate form? boundary
- Which markings or manufacturer records support this pair's claimed identity? provenance
Pair assembly
Identify the two plates and their intended relationship.
Compatible footplates
Record plate identity, orientation markings and relevant differences before accepting two plates as a pair.
- Do markings or instructions assign a left/right or forward orientation to these plates? definition
- Are the two plates compatible in wheel size, mounting geometry and intended model configuration? measurement
Shoe contact and rolling geometry Describe the interfaces between the rider, each footplate and the ground.
Unbound foot support
Capture the usable standing area and grip surface.
Shoe placement and retention
Assess shoe support and grip without assuming a binding retains the rider's foot.
- What usable contact area and intended shoe position does each plate provide? measurement
- Does worn, detached or contaminated grip require cleaning or replacement before riding? action
Wheel layout
Describe rolling direction, support geometry and clearance per plate.
Rolling axis and clearance
Record axle spacing, wheel dimensions and mounting orientation together rather than treating wheel diameter as sufficient.
- What are the wheel dimensions, axle spacing and rolling-axis angle relative to each footplate? measurement
- Does the fitted wheel configuration preserve clearance from the deck and mounting hardware? measurement
Rider motion and control Model the controls supplied through body movement and independent footplate motion.
Propulsion and steering
Record the human input and configuration needed to initiate and direct motion.
Coordinated plate motion
Capture documented propulsion and steering techniques as operating requirements, with rider capability recorded separately from equipment condition.
- Which manufacturer or instructor material explains propulsion and steering for this configuration? provenance
- Can the intended rider start, maintain plate coordination and turn in the proposed practice setting? action
Stopping and foot release
Establish how the rider controls speed and separates from the plates.
Verified stopping capability
Do not infer a brake from the word skate or assume stepping off is adequate at every speed.
- What stopping provisions and techniques are documented for this pair? definition
- Has the rider demonstrated controlled stopping in comparable conditions before entering the proposed route? action
Riding envelope Relate the pair's limits to rider loading, surface conditions and available space.
Load and intended use
Separate documented equipment limits from assumptions based on appearance.
Variant-specific limits
Attach load and use restrictions to the identified variant; leave absent ratings unknown.
- What rider load limit and intended-use restrictions does the actual manufacturer document? provenance
- Does proposed jumping, impact loading or other use exceed the documented scope? boundary
Surface and runout
Assess the ground and space in which the two plates will roll.
Route suitability
Record slope, debris, discontinuities, moisture and unobstructed stopping space without inventing universal thresholds.
- What slope, cracks, debris and surface contamination occur along the intended riding area? measurement
- Given wheel condition and demonstrated stopping capability, should this area be used, restricted or avoided? action
Paired condition and service Maintain both individual assemblies and their behaviour as a pair.
Fault assessment
Inspect the load-bearing and rolling parts of each plate.
Asymmetric wear and damage
Compare both plates for wheel wear, rolling resistance, looseness and structural damage while retaining component-level observations.
- How do wheel wear, bearing drag and axle play differ within and between the two plates? measurement
- Which observed cracks, deformation or loose components require withdrawal from riding pending repair? action
Replacement and return to use
Verify service compatibility and post-service function.
Compatible service configuration
Match replacement interfaces and manufacturer requirements, then verify retention, clearance and rolling function on both plates.
- Which documented bearing, axle, spacer and wheel interfaces must replacement parts match? measurement
- After service, have both plates passed the applicable fastening, clearance and functional checks? action
Evidence and external alignment What the world already says about this thing, gathered so the model can be checked against it.
Reported evidence
Findings from the breadth pass, kept separate from the structural claims.
Check these first
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these check these first hold for the sense of Freeline skates this model covers, and on what evidence? provenance
Real-world use
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these real-world use hold for the sense of Freeline skates this model covers, and on what evidence? provenance
Failure modes and hazards
Recalled without web access and unsourced; every item is a lead to verify.
- Which of these failure modes and hazards hold for the sense of Freeline skates this model covers, and on what evidence? provenance
Neighbouring kinds and how to tell them apart
Recalled without web access and unsourced; every item is a lead to verify.
- 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? provenance
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.OBJ
What it is Filled
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.
In scope
- 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 of scope
- 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
Why it exists Filled
Enable an agent to recognise Freeline skates, assess a pair's configuration and condition, and determine whether riding, adjustment or repair is appropriate.
Distinguishing features Filled
- 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.
What robots and AI may and may not do Filled
Must not
- 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.
Only with a human decision
- Approving a damaged pair for continued use after a repair.
- Letting a young or inexperienced rider use them in a public space.
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.
Moral aspects Filled
- 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.
Who is affected
- Riders, especially children
- Pedestrians
- Parents and carers
Owners Filled
Steward
The person who owns and rides the pair.
Links to other meta-models Filled
parent
- Q768186 - registry parent class
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.freeline-skates
- Wikidata: Q1003792 (https://www.wikidata.org/wiki/Q1003792)
Direct properties required Filled
- 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 required Filled
- 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 and actions required Filled
- 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 and failure modes required Filled
- 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.
Standards and interfaces required Filled
- Harmonized System subheading 9506.70, issued by the World Customs Organization, covers roller skates for customs classification.
Context of use required Filled
- 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 Filled
- Wikidata item Q1003792: Freeline skates - identity and sense of the item
- Wikipedia: Freeskates - general description of the item
Open questions
- 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?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q1003792/spec.json