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8251 LEGO Technic Sonic Cycle thumbnail image

8251 LEGO Technic Sonic Cycle
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8251 LEGO Technic Sonic Cycle
  • Sonic Cycle thumbnail
  • Sonic Cycle thumbnail
  • Sonic Cycle thumbnail
  • Sonic Cycle thumbnail
  • Sonic Cycle thumbnail
  • Sonic Cycle thumbnail

LEGO 8251 Sonic Cycle is a Technic set from 1999 valued at $20 for new and sealed sets, up 150% from an original retail price of $7.99. Annual appreciation has averaged 2.84% since release. On the used market, values range from $9 to $11 based on condition.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Sonic Cycle since August 2016. Very high accuracy
LEGO 8251 Sonic Cycle is a Technic Tech Play set released in 1999, containing 89 pieces. The set builds a small motorcycle and was positioned as an entry-level model in the Tech Play range. It features functional steering operated through handlebars made from crankshaft elements, along with a rear suspension system that uses a spring-loaded mono-shock mounted beneath the seat. The rear wheel is connected to a trailing arm, giving the model a compact but mechanically focused design.

A new and sealed Sonic Cycle is currently valued at around $20, with annual growth of 2.8% that is expected to level off to around 1.8% in the coming year. The average used price is $9 for those in good overall condition. Based on current trends, this set could be valued near $20 within the next year. New and sealed listings currently range from $20 to $25.
All regions

For Sale (New/Sealed)

 (DK) Sealed box, with some creases, $15.25
-23.8%
(US) 8251 Technic Sonic Cycle 1999 new in box
BrickEconomy Choice
$19.99
-0.1%
(US) This set is Brand New and Sealed. We are the original owner and bought it new off the... $20.00
(US) Amazon listing for Sonic Cycle $21.00
+5.0%
(US) Vintage Lego 8251 Technic Sonic Cycle 1999 New in Box Sealed $24.99
+25.0%
(US) 2 TECHNIC LEGO Sets-Sonic Cycle Factory sealed, Slammer Stunt Bike (8251, 8240) $29.99
+50.0%

More sets in Technic

8448 Super Street Sensation

Theme Technic
Year 1999
Pieces 1,437
Availability Retired
8448 LEGO Technic Super Street Sensation
Retail $129.99
Value $621.26
Growth  +377.9%
Annual growth 6.0%

8446 Crane Truck

Theme Technic
Year 1999
Pieces 582
Availability Retired
8446 LEGO Technic Crane Truck
Retail $59.99
Value $220.78
Growth  +268.0%
Annual growth 3.6%

8445 Indy Storm

Theme Technic
Year 1999
Pieces 446
Availability Retired
8445 LEGO Technic Indy Storm
Retail $39.99
Value $168.26
Growth  +320.8%
Annual growth 3.6%

8444 Air Enforcer

Theme Technic
Year 1999
Pieces 309
Availability Retired
8444 LEGO Technic Air Enforcer
Retail $29.99
Value $95.74
Growth  +219.2%
Annual growth 4.4%

8253 Fire Helicopter

Theme Technic
Year 1999
Pieces / Figures 210 / 1
Availability Retired
8253 LEGO Technic Fire Helicopter
Retail $16.50
Value $58.35
Growth  +253.6%
Annual growth 4.8%

8255 Rescue Bike

Theme Technic
Year 1999
Pieces / Figures 202 / 2
Availability Retired
8255 LEGO Technic Rescue Bike
Retail $14.99
Value $86.96
Growth  +480.1%
Annual growth 5.6%

8252 Beach Buster

Theme Technic
Year 1999
Pieces / Figures 183 / 1
Availability Retired
8252 LEGO Technic Beach Buster
Retail $19.99
Value $40.00
Growth  +100.1%
Annual growth 3.6%

8246 Hydro Racer

Theme Technic
Year 1999
Pieces 46
Availability Retired
8246 LEGO Technic Hydro Racer
Retail $3.99
Value $12.34
Growth  +209.3%
Annual growth 5.1%

8247 Road Rebel

Theme Technic
Year 1999
Pieces 44
Availability Retired
8247 LEGO Technic Road Rebel
Retail $5.99
Value $14.27
Growth  +138.2%
Annual growth 2.6%

1258 Buggy

Theme Technic
Year 1999
Pieces 29
Availability Retired
1258 LEGO Technic Buggy
promotional
Value $11.56
Annual growth 4.5%

3001 Propeller Buggy

Theme Technic
Year 1999
Pieces 29
Availability Retired
3001 LEGO Technic Propeller Buggy
promotional
Value $45.27
Annual growth 7.4%

1259 Motorbike

Theme Technic
Year 1999
Pieces 28
Availability Retired
1259 LEGO Technic Motorbike
promotional
Value $12.01
Annual growth 4.8%

1268 Bike Blaster

Theme Technic
Year 1999
Pieces 28
Availability Retired
1268 LEGO Technic Bike Blaster
Retail $1.99
Value $23.78
Growth  +1095.0%
Annual growth 6.4%

3003 Bike

Theme Technic
Year 1999
Pieces 28
Availability Retired
3003 LEGO Technic Bike
promotional
Value $75.33
Annual growth 9.3%

1260 Car

Theme Technic
Year 1999
Pieces 26
Availability Retired
1260 LEGO Technic Car
promotional
Value $18.83
Annual growth 3.1%

3005 Piston Car

Theme Technic
Year 1999
Pieces 26
Availability Retired
3005 LEGO Technic Piston Car
promotional
Value $37.87
Annual growth 9.2%

1257 Tricycle

Theme Technic
Year 1999
Pieces 24
Availability Retired
1257 LEGO Technic Tricycle
promotional
Value $12.54
Annual growth 5.6%

3000 Tribuggy

Theme Technic
Year 1999
Pieces 24
Availability Retired
3000 LEGO Technic Tribuggy
promotional
Value $49.95
Annual growth 4.7%

My Collection

Sonic Cycle Reviews

27 reviews
4.7
Collectors
Investors
Technic-Dialog
“The Motorbike from the Lego Technic series is a well-made, little model. From a few individual parts a pleasant-looking motorcycle is built, which has two functions, despite the low number of parts, so at least a little fun is provided. All in all, the Motorbike gets five... More stars in the overall rating.”
Full review at technic-dialog.de
Technicopedia
“While similar in size to 8210, this little motorcycle adds more stylized highlights including more non-square angles and curved exhaust. It also makes use of many of the newer 1/2 thickness Technic parts.”
Full review at www.technicopedia.com

About Technic

TECHNIC is one of The LEGO Company's main lines based on creating detailed model machines and mechanical toys with specialized beams, axles, gears and connectors and primarily designed for older children and adults. The theme was first introduced as the Expert Builder series in 1977, but was officially renamed as TECHNIC in 1984. TECHNIC is still an active theme, and is one of the longest running themes in LEGO history. While most TECHNIC sets are vehicles that use pieces to mimic real vehicles, such as engine pieces, suspension, pneumatic, and transmission pieces, the TECHNIC parts have been used by various other System themes as well as LEGO Mindstorms.
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