Sprockets (BMC)

For other uses, see Sprockets (disambiguation).

Sprockets

MultiplatformFlash

	Increases sentry fire rate appreciably.

	Adding sprockets to sentries and the nailgun increase their fire rate appreciably.

Tower		Path	Tier
Monkey Engineer		2	3

Upgrade cost		$550
Prerequisites		City Level 12
Research cost		7,500 (Multiplatform version)  7,500  20 (Flash version)
Research time		2 days
XP for researching		300

← Larger Service Area

Overclock →

Sprockets is the Monkey Engineer's path 2 tier 3 upgrade in Bloons Monkey City. It slightly increases the Engineer's nail gun attack speed. In the Flash version, it spawns "SentrySprockets" instead of ordinary sentries that have an increased fire rate, but these sentries are not affected by any sentry-related Monkey Knowledge except the level 3 effect that grants them Camo detection. In the multiplatform version, this upgrade does not affect sentries at all due to an error.

Stats

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Costs and sell values

Note: this list does not factor in Monkey Knowledge or other discounts.

Tiers	Mobile version		Flash version
	Cost	Sell value	Cost	Sell value
0-3	$2,100	$1,680	$2,350	$1,880
1-3	$2,600	$2,080	$2,800	$2,240
2-3	$3,000	$2,400	$3,150	$2,520

Strategy

Sprockets is not strong for its cost compared to multiple 1-0 or 2-0 Engineers, due to the high cost of its preceding upgrades for not much extra attack speed, as well as Larger Service Area being a detriment to sentry consistency. In the Mobile version, it's terrible, merely providing a slight nailgun boost.