About SPIKE Prime Expansion Set
SPIKE Prime Expansion Set (45681-1) is a LEGO LEGO set from 2021 valued at $136.00 on BrickLink. It contains 104 cataloged parts. This set has been retired and is only available on the secondary market.
Parts (104)
Technic, Axle 1L with Pin 2L with Friction Ridges
Red×8
Bracket 5 x 2 x 1 1/3 with 2 Holes and Bottom Tube
White×2
Technic, Liftarm, Modified H-Shape Thick 3 x 5 Perpendicular
Light Bluish Gray×6
Technic, Axle 5L with Stop
Reddish Brown×2
Tile, Round 2 x 2 with Hole
Red×2
Tile, Round 2 x 2 with Hole
Black×4
Technic, Liftarm Thick 1 x 1 (Spacer)
Black×5
Tile, Round 2 x 2 with Open Stud
Medium Azure×4
Technic Turntable 60 Tooth, Top (Undetermined Type)
Black×2
Technic Turntable 60 Tooth, Base
Light Bluish Gray×2
Technic, Axle and Pin Connector Hub with 1L Axle
White×4
Technic, Panel Curved 7 x 3 with 2 Pin Holes through Panel Surface
Black×4
Technic, Gear Rack 11 x 11 Curved
Black×8
Technic, Pin with Short Friction Ridges
Black×82
Brick 2 x 2
White×2
Brick 2 x 2
Black×2
Brick 2 x 2
Medium Azure×2
Technic, Liftarm, Modified Bent Thick 1 x 11.5 Double
Black×4
Technic, Axle and Pin Connector Angled #6 - 90 degrees
Yellow×12
Technic, Axle and Pin Connector Angled #5 - 112.5 degrees
Black×4
Technic, Axle and Pin Connector Angled #3 - 157.5 degrees
Medium Azure×4
Technic, Axle Connector with Axle Hole
Black×6
Technic, Pin 3L with Friction Ridges and Stop Bush
Red×6
Technic, Pin 3L with Friction Ridges and Stop Bush
Light Bluish Gray×6
Technic, Axle 2L Notched
Red×8
Technic, Axle 5L
Light Bluish Gray×4
Technic, Liftarm, Modified Bent Thick L-Shape 2 x 4
Yellow×8
Technic, Axle and Pin Connector Perpendicular 3L with Center Pin Hole
White×4
Technic, Gear 20 Tooth Bevel
Tan×2
Technic, Gear 20 Tooth Double Bevel
Tan×2
Technic, Gear 12 Tooth Double Bevel
Black×2
Technic, Liftarm, Modified Bent Thick 1 x 9 (7 - 3)
Yellow×4
Technic, Liftarm Thick 1 x 15
Black×6
Technic, Axle and Pin Connector Perpendicular Double
Black×4
Technic, Liftarm Thick 1 x 5
Magenta×8
Technic, Liftarm, Modified Bent Thick 1 x 7 (4 - 4)
Black×4
Technic, Gear 36 Tooth Double Bevel
Black×2
Technic, Liftarm Thick 1 x 3
White×4
Technic, Liftarm Thick 1 x 3
Yellow×6
Technic, Liftarm Thick 1 x 7
Medium Azure×6
Technic, Liftarm Thick 1 x 11
Magenta×6
Technic, Liftarm, Modified Bent Thick L-Shape 3 x 5
White×6
Technic, Liftarm, Modified Bent Thick L-Shape 3 x 5
Medium Azure×4
Technic, Pin 3L without Friction Ridges
Tan×8
Technic, Gear 20 Tooth Double Bevel with Clutch on Both Sides
Blue×2
Technic, Pin without Friction Ridges
Light Bluish Gray×13
Technic, Axle 4L
Black×4
Technic, Axle 6L
Red×4
Technic, Axle 12L
Red×2
Technic Bush
Light Bluish Gray×13
Electric Sensor, Color - SPIKE Prime
Black
Technic, Steering Ball Joint Large Receptacle with H-Shape Perpendicular Thick Liftarm
Medium Azure
Brick, Round 2 x 2 with Axle Hole
Yellow×4
Brick, Round 2 x 2 with Axle Hole
Trans-Light Blue×2
Technic, Brick 2 x 4 with 3 Axle Holes
Yellow×2
Technic, Brick 2 x 4 with 3 Axle Holes
Red×2
Technic, Brick 2 x 4 with 3 Axle Holes
Green×2
Technic, Brick 2 x 4 with 3 Axle Holes
Blue×2
Technic, Brick 2 x 4 with 3 Axle Holes
Magenta×2
Technic, Liftarm, Modified Frame Thick 11 x 15 Open Center
Medium Azure×2
Technic, Pin Connector Block, Liftarm 1 x 3 x 3
Magenta×4
Technic, Liftarm, Modified Frame Thick 7 x 11 Open Center
Magenta×4
Technic, Liftarm Thick 1 x 9
Black×8
Technic, Liftarm Thick 1 x 13
Medium Azure×6
Technic, Axle and Pin Connector Perpendicular Double Split
Red×4
Technic, Axle and Pin Connector Perpendicular 3L with 2 Pin Holes
Red×12
Slope, Curved 6 x 1 with 2 Studs
Yellow×4
Technic Bush 1/2 Smooth
Yellow×17
Technic, Pin 1/2 without Friction Ridges
Blue×17
Technic, Axle 1L with Pin with Friction Ridges
Blue×24
Technic, Axle 3L
Yellow×14
Technic, Gear 28 Tooth Double Bevel
Light Bluish Gray×2
Technic, Pin Connector Perpendicular 3L with 4 Pins
Light Bluish Gray×10
Technic, Axle and Wire Connector
Yellow×2
Technic, Axle and Wire Connector
Red×2
Technic, Axle and Wire Connector
Medium Azure×2
Wheel 88 x 14 Technic with Axle Hole and 28 Pin Holes with Molded Medium Azure Hard Rubber Tire Pattern
Black×4
Technic, Axle 32L
Black×2
Wheel Ball, Hard Plastic 19mm D.
White
Electric, Motor SPIKE Prime / Powered Up, Large Angular with White Top Housing and Cable
Medium Azure
Technic, Axle 8L with Stop
Dark Bluish Gray×2
Technic, Pin Connector Perpendicular 3 x 3 Bent with 4 Pins
Light Bluish Gray×6
Technic, Liftarm, Modified T-Shape Thick 3 x 3
Yellow×4
Technic, Pin Connector Round 2L with Slot (Pin Joiner Round)
Yellow×6
Technic, Axle and Pin Connector Perpendicular Triple
Light Bluish Gray×8
Technic, Liftarm, Modified Frame Thick 5 x 7 Open Center
Black×8
Technic, Axle and Pin Connector Perpendicular
Black×16
Technic, Axle Connector 2L (Smooth with x Hole + Orientation)
White×4
Technic, Axle Connector 2L (Smooth with x Hole + Orientation)
Red×4
Technic, Axle 2L with Reverser Handle Axle Connector
Light Bluish Gray×6
Technic, Pin 3L with Friction Ridges
Blue×36
Technic, Liftarm, Modified Frame Thick 11 x 15 Grille Center (Maker Plate)
Magenta
Technic, Gear 12 Tooth Bevel
Tan×4
Technic, Liftarm, Modified Bent Thick 1 x 9 (6 - 4)
White×2
Technic, Axle 4L with Stop
Dark Bluish Gray×4
Technic, Pin Connector Toggle Joint Smooth Double with Axle and Pin Holes
Black×2
Technic, Gear Rack 1 x 7 with Axle and Pin Holes
Black×2
Chicken, Narrow Base
White
Technic, Axle Connector Block Round with 2 Pin Holes and 3 Axle Holes (Hero Factory Weapon Barrel)
Black×4
Technic Turntable 28 Tooth, Base
Light Bluish Gray×2
Technic Turntable 28 Tooth, Top
Black×2
Technic, Liftarm, Modified Triangle Thin 3 x 5 with Short Supports
Yellow×4
Rubber Belt Medium (Round Cross Section) - Approx. 3 x 3
Red×2
Rubber Belt Small (Round Cross Section) - Approx. 2 x 2
White×2Common questions about SPIKE Prime Expansion Set
How much is LEGO SPIKE Prime Expansion Set (45681-1) worth?
SPIKE Prime Expansion Set sells for an average of $136.00 used and $160.79 new/sealed on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness — missing minifigures or key parts will lower the value.
Is LEGO SPIKE Prime Expansion Set (45681-1) retired?
Yes, SPIKE Prime Expansion Set was released in 2021 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms. At its current price point, it has appreciated since retirement.
How do I check if my SPIKE Prime Expansion Set set is complete?
Use the parts list on this page to check every piece. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.