Power Sensor

COMMON CHAIN WEIGHTS AND LENGTHS
BRAND	MODEL	TYPE	WEIGHT (GRAMS)	# OF LINKS	LENGTH (MM)
SRAM	PC-59 & PC-49	9 SPEED	300	116	1473
SRAM	PC-69	9 SPEED	312	116	1473
SRAM	PC-89R	9 SPEED	310	116	1473
SRAM	PC-99	9 SPEED
SRAM	PC-68	8 SPEED	337	116	1473
SRAM	PC-48	8 SPEED	345	116	1473
SRAM	PC-58	8 SPEED	335	114	1448

Shimano	CN 7701	9 SPEED	304	116	1473
Shimano	HG-93	9 SPEED	304	116	1473
Shimano	HG-73	9 SPEED	304	116	1473
Shimano	HG-53	9 SPEED	304	116	1473
Shimano	HG-50	8 SPEED	335	114	1448
Shimano	HG-91	8 SPEED	335	114	1448
Shimano	HG-90	8 SPEED	316	114	1448

Campagnolo	UD C10	10 SPEED	279	114	1448
Campagnolo	UD C9	9 SPEED	300	114	1448

Whipperman Connex	NICKEL	10 SPEED	303	114
The Polar system uses chain length and weight to calculate chain density. Therefore, removing a few links from the chain after measuring, will not affect your results.