LEGO Set

Sonic Cycle

8251-1

Released: 1999 · Parts: 89 · Theme: Technic

Sonic Cycle (8251-1) is a Technic LEGO set released in 1999 with 89 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing Technic sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 38 unique part types.

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Buying checklist

Quick context before you buy this set used or verify a marketplace listing.

Release year

1999 (27 years ago — may be retired)
Catalog scale

89 parts listed · 38 inventory lines tracked
Minifigures

No minifigs in inventory (brick-only or Technic set)
Build manual

Digital booklet available on this page — use it to verify bag contents
Gray era

Pre-2004 set — may use old light/dark gray instead of bluish gray
Shipping weight (est.)

~179 g for parts inventory (excludes box/minifig packaging)
Before you buy used

Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing

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Market value

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