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872 LEGO Technic Two Gear Blocks thumbnail image

872 LEGO Technic Two Gear Blocks
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872 LEGO Technic Two Gear Blocks
  • Two Gear Blocks thumbnail

LEGO 872 Two Gear Blocks is a vintage Technic set from 1978 valued at $32 for new and sealed sets, up 64% from an original retail price of $19.50. Annual appreciation has averaged 3.11% since release. On the used market, values range from $29 to $36 based on condition. Secondary market prices for new and sealed sets typically fall between $31 and $37.

Set Value (New/Sealed)

This chart represents the current new/sealed value of the set Two Gear Blocks since June 2016. Very high accuracy
LEGO 872-1 Two Gear Blocks is a Technic Supplementary set released in 1978, containing 77 pieces. It is an accessory-based set centered on early Technic mechanical elements, including gears, chains, axles, bushes, plates, and beams. The contents include two gear block assemblies, a gearbox, 24-tooth gears with three axle holes, black 6L axles, red perforated bricks and plates, and a light gray 4.5V motor housing. As part of the early Technic range, it was designed to expand motorized and geared functions in other Technic models.

A new and sealed Two Gear Blocks is currently valued at around $32, with annual growth of approximately 3%. The average used price is $30 for those in good overall condition. New and sealed listings currently range from $32 to $41. Based on current trends, this set could be valued near $33 within the next year.
All regions

For Sale (New/Sealed)

 (BE) BrickLink store fabriks $27.43
-14.0%
(US) eBay listing for Two Gear Blocks $30.95
-3.0%
(FR) BrickLink store BLUXE $32.39
+1.5%
(ES) New in Sealed box. 1978 version, it means foam box and plastic cover. With self wear ... $34.41
+7.8%
(IT) 872-1 Two Gear Blocks MISB $34.94
+9.5%
(NL) One seal of the box is open $40.47
+26.8%
(DE) NEW and SEALED, foil with small damage, see original pictures $46.21
+44.8%

Sales Distribution (Last 90 Days)

This chart shows the distribution of sales for the past three months of new/sealed 872 Two Gear Blocks.

Sets in Technic / Supplementary

8710 Technical Elements

Theme / Subtheme Technic / Supplementary
Year 1981
Pieces 124
Availability Retired
8710 LEGO Technical Elements
Retail $12.00
Value $43.01
Growth  +258.4%
Annual growth 3.2%

879 Gear Wheels with Chain Links

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 87
Availability Retired
879 LEGO Technic Gear Wheels with Chain Links
Retail $4.50
Value $110.76
Growth  +2361.3%
Annual growth 7.1%

871 Supplementary Set

Theme / Subtheme Technic / Supplementary
Year 1977
Pieces 78
Availability Retired
871 LEGO Technic Supplementary Set
Retail $9.99
Value $115.35
Growth  +1054.7%
Annual growth 2.7%

961 Parts Pack

Theme / Subtheme Technic / Supplementary
Year 1978
Pieces 78
Availability Retired
961 LEGO Technic Parts Pack
Retail $5.00
Value $83.59
Growth  +1571.8%
Annual growth 7.0%

8735 Motor Set, 9 V

Theme / Subtheme Technic / Supplementary
Year 1997
Pieces 60
Availability Retired
8735 LEGO Technic Motor Set, 9 V
Retail $39.99
Value $52.00
Growth  +30.0%

8720 9V Motor Set

Theme / Subtheme Technic / Supplementary
Year 1990
Pieces 57
Availability Retired
8720 LEGO Technic 9V Motor Set
Retail $35.99
Value $80.00
Growth  +122.3%
Annual growth 3.0%

878 Piston Parts

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 52
Availability Retired
878 LEGO Technic Piston Parts
Retail $4.50
Value $33.10
Growth  +635.6%
Annual growth 4.3%

874 Yellow Beams with Connector Pegs

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 38
Availability Retired
874 LEGO Technic Yellow Beams with Connector Pegs
Retail $5.00
Value $27.83
Growth  +456.6%
Annual growth 3.7%

875 Red Beams with Connector Pegs

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 38
Availability Retired
875 LEGO Technic Red Beams with Connector Pegs
Retail $5.00
Value $20.68
Growth  +313.6%
Annual growth 4.6%

876 Blue Beams with Connector Pegs

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 38
Availability Retired
876 LEGO Technic Blue Beams with Connector Pegs
Retail $5.00
Value $43.13
Growth  +762.6%
Annual growth 4.7%

8700 Power Pack

Theme / Subtheme Technic / Supplementary
Year 1982
Pieces 26
Availability Retired
8700 LEGO Technic Power Pack
Retail $26.00
Value $65.00
Growth  +150.0%
Annual growth 1.6%

877 Steering Gear Parts

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 24
Availability Retired
877 LEGO Technic Steering Gear Parts
Retail $3.50
Value $106.83
Growth  +2952.3%
Annual growth 7.5%

870 Technical Motor, 4.5 V

Theme / Subtheme Technic / Supplementary
Year 1977
Pieces 22
Availability Retired
870 LEGO Technical Motor, 4.5 V
Retail $8.99
Value $81.71
Growth  +808.9%
Annual growth 4.6%

880 12 Volt Motor

Theme / Subtheme Technic / Supplementary
Year 1979
Pieces 22
Availability Retired
880 LEGO Technic 12 Volt Motor
Retail $19.99
Value $39.66
Growth  +98.4%
Annual growth 5.2%

960 Power Pack

Theme / Subtheme Technic / Supplementary
Year 1978
Pieces 22
Availability Retired
960 LEGO Technic Power Pack
Retail $22.50
Value $70.94
Growth  +215.3%
Annual growth 2.4%

8712 Technic Figures

Theme / Subtheme Technic / Supplementary
Year 1988
Pieces / Figures 10 / 3
Availability Retired
8712 LEGO Technic Figures
Retail $8.25
Value $56.57
Growth  +585.7%
Annual growth 5.2%

8714 The LEGO Technic Guys

Theme / Subtheme Technic / Supplementary
Year 1993
Pieces / Figures 9 / 3
Availability Retired
8714 The LEGO Technic Guys
Retail $8.99
Value $110.80
Growth  +1132.5%
Annual growth 3.8%

My Collection

Two Gear Blocks Reviews

23 reviews
4.6
Collectors
Investors
Technic-Dialog
“The supplementary set from the Lego Technic series includes, among others, a gearbox for the electric motors. With this gearbox, the electrical drive could be reduced. The transmission’s value is 1:20. This means that if the drive rotates 20 times on its axis before... More transmission, it rotates only once on its axis after transmission. The gearbox blocks were suitable for both 4,5 Volt motors (as in the supplementary set no. 870) and 12 Volt motors (as in the supplementary set no. 880).”
Full review at technic-dialog.de

About Technic Supplementary

The LEGO Technic Supplementary theme, active from 1977 to 1997, consists of a variety of accessory sets designed to enhance and expand existing Technic models. These sets provided additional parts, such as gears, wheels, axles, and motors, allowing builders to add more functionality and complexity to their creations. Notable sets in this theme include the "870 Technical Motor," which introduced a battery-powered motor for motorizing models, and the "8710 Supplementary Set," a collection of gears and other essential mechanical parts.

Supplementary consists of 18 sets that ran from 1977 to 1997. As of today, 871 Supplementary Set is the most valuable Supplementary set with an estimated new/factory sealed value of $115.
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