Velopedia Bicycle Archive

2003 HH Racing Group Corsa 20

Original manufacturer specifications including Shimano Sora drivetrain, 20" wheels, 17 lb published weight.

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What Velopedia knows

Model year
2003
Category
Kids
Original MSRP
$1,015.00
Sizes
20"
Colors
Black, Candy Blue, Candy Red, White
Weight
17 lb
Geometry
Legacy reference · Geometry context
Record coverage
33 preserved details · archived image · original MSRP · preserved geometry
Archive ID
91869

Manufacturer catalog

Published sizes and colors

1 size · 4 colors

Manufacturer-published sizes and colors; availability and exact size/color pairings may vary by market or production run.

Published sizes

20"

Published colors

BlackCandy BlueCandy RedWhite

Frameset

Frame ConstructionTIG-welded
Frame MaterialChromoly, 4130
ForkHH Custom Road
Fork MaterialReynolds 531, sloping crown
Rear ShockN/A

Drivetrain

Component GroupShimano Sora
ShiftersShimano SL-R440 down tube
Front DerailleurShimano Sora
Rear DerailleurShimano Sora SS
CranksetShimano Sora, 39/52 teeth
Bottom BracketShimano BB-UN52, 110mm spindle
BB Shell Width68mm English
Rear Cogs7-speed, 13 - 26 teeth
ChainSRAM PC-48, 1/2 X 3/32"
PedalsNot included

Brakes

BrakesShimano Sora Dual Pivot brakes, Dia-Compe 287 levers

Cockpit & Contact Points

Headset1" threaded steel
HandlebarAluminum
Handlebar ExtensionsNot included
StemAluminum
SaddleSelle Italia Trimatic 2
SeatpostAluminum micro-adjust, 26.8mm diameter

Wheels & Tires

HubsShimano Sora
RimsSun Rims CR18, 32-hole
SpokesDT stainless steel, 14ga. (2.0mm) straight gauge
Spoke NipplesBrass nipples
Front Tire20 x 1 1/8" Panaracer
Wheel Size20" wheels

Historical reference geometry

Geometry

Legacy reference · 6 measurements

Historical model-level geometry recovered from Velopedia’s original archive database. The source does not identify which listed frame size this reference describes, so fit interpretation is intentionally limited and no size-normalized Archive Context is generated.

MeasurementLegacy reference
Top tube490 mm
Head-tube angle72°
Seat-tube angle74°
Chainstay / rear center380 mm
Wheelbase1765.3 mm
Fork offset / rake27 mm

Geometry source: Historical archive database — model-level reference geometry. The historical source provides one model-level geometry set and does not identify the corresponding frame size.

Geometry tools

Explore this historical geometry

Model-level historical reference

See it in periodOpen an immediate comparison with preserved 2003 kids geometries. The source frame size remains unidentified.
See its 2003 geometry context

Parts & serviceability

Find replacement parts

3 top part searches
ChainExact archived part
SRAM PC-48, 1/2 X 3/32" Exact archived model
Bottom bracketExact archived part
Shimano BB-UN52, 110mm spindle Exact archived model
SaddleQualified part search
Selle Italia Trimatic 2 Named archived component — verify exact version
More qualified parts (6)
CranksetQualified part search
Shimano Sora, 39/52 teeth Named archived component — verify exact version
Front derailleurMatching configuration
Shimano Sora Interpreted as Shimano Sora · 7-speed · mechanical Named component · published drivetrain speed — verify exact version
Rear derailleurMatching configuration
Shimano Sora SS Interpreted as Shimano Sora · 7-speed · mechanical Named component · published drivetrain speed — verify exact version
ShiftersExact archived part
Shimano SL-R440 down tube Exact archived model
SeatpostMatching fit standard
26.8 mm seatpost Published diameter — verify length and setback
HubsQualified part search
Shimano Sora Named archived component — verify dimensions

Searches use the archived manufacturer specification, not the components currently installed on a particular bicycle. Confirm the exact model, size and fit before ordering. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Commercial relationships do not influence Archive specifications or analysis.

Used-bike inspection

If you’re buying this bike used

Before any test ride: both brakes should stop the bike firmly and release cleanly; both wheels should run true and be securely attached; tires should have no casing damage; and the headset, handlebar, stem, cranks and pedals should have no looseness or play.

Follow the full used-bike inspection order →
  • FrameCheck paint chips, vent holes and the inside of the seat tube for corrosion. Also look for dents, bent tubes and cracking around welded or brazed joints.Inspect the frame and fork →
  • BrakesTest each brake separately and confirm it stops firmly and releases cleanly. Inspect the pads and braking surfaces for wear or contamination, and check the cables or hoses for damage.Inspect the brakes →
  • DrivetrainShift through every gear under light load and measure chain wear. Confirm that the shifter, derailleur, chain and cassette belong to the same 7-speed system.Check drivetrain wear →
  • Wheels & tiresSpin both wheels and watch the rims for side-to-side or vertical movement. Check for dents, cracks, loose or uneven spokes and hub play, then inspect both tire casings for cuts, cracking or exposed threads.Check wheels and tires →
Bike-specific inspection checklist 19 checks based on 5 archived component groups Open checklistClose checklist
0 of 19 checked Progress stays in this browser for this bike.

This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.

Archived: 2003 HH Racing Group Corsa 20 · Juvenile · Published sizes: 20"

Archived: Frame: TIG-welded · Fork: HH Custom Road · Reynolds 531, sloping crown

Archived: Group: Shimano Sora · Shifters: Shimano SL-R440 down tube · Front derailleur: Shimano Sora · Rear derailleur: Shimano Sora SS · Crankset: Shimano Sora, 39/52 teeth · Bottom bracket: Shimano BB-UN52, 110mm spindle · Rear cogs: 7-speed, 13 - 26 teeth · Chain: SRAM PC-48, 1/2 x 3/32"

Archived: Brakes: Shimano Sora Dual Pivot brakes, Dia-Compe 287 levers

Archived: Wheel size: 20" wheels · Rims: Sun Rims CR18, 32-hole · Hubs: Shimano Sora · Front tire: 20 x 1 1/8" Panaracer

Controls and contact points

Archived: Headset: 1" threaded steel · Handlebar: Aluminum · Stem: Aluminum · Seatpost: Aluminum micro-adjust, 26.8mm diameter · Saddle: Selle Italia Trimatic 2 · Pedals: Not included

Before and during the test ride

Follow the full used-bike inspection order →

Build relationships are limited to the archived manufacturer specifications. Confirm exact fit and standards before ordering parts or performing service.

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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.

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