Measure Your Bike's Gearing With GéRZ -- 27" / 700C Page Now Loading Below

GéRZ (Say "GEARS") Bicycle Gear Tables  ||  http://home.i1.net/~dwolfe/gerz/  ||  dwolfe@i1.net
-- CHAINRING TEETH --
C A S S E T T E = F R E E W H E E L   T E E T H		22	24	26	28	30	32	34	36	38	39	40	42	44	46	48	50	52	53
	11	54.0	58.9	63.8	68.7	73.6	78.5	83.4	88.4	93.3	95.7	98.2	103.1	108.0	112.9	117.8	122.7	127.6	130.1
	12	49.5	54.0	58.5	63.0	67.5	72.0	76.5	81.0	85.5	87.7	90.0	94.5	99.0	103.5	108.0	112.5	117.0	119.2
	13	45.7	49.8	54.0	58.1	62.3	66.5	70.6	74.8	78.9	81.0	83.1	87.2	91.4	95.5	99.7	103.8	108.0	110.1
	14	42.4	46.3	50.1	54.0	57.9	61.7	65.6	69.4	73.3	75.2	77.1	81.0	84.9	88.7	92.6	96.4	100.3	102.2
	15	39.6	43.2	46.8	50.4	54.0	57.6	61.2	64.8	68.4	70.2	72.0	75.6	79.2	82.8	86.4	90.0	93.6	95.4
	16	37.1	40.5	43.9	47.2	50.6	54.0	57.4	60.7	64.1	65.8	67.5	70.9	74.2	77.6	81.0	84.4	87.7	89.4
	17	34.9	38.1	41.3	44.5	47.6	50.8	54.0	57.2	60.3	61.9	63.5	66.7	69.9	73.1	76.2	79.4	82.6	84.2
	18	33.0	36.0	39.0	42.0	45.0	48.0	51.0	54.0	57.0	58.5	60.0	63.1	66.0	69.0	72.0	75.0	78.0	79.5
	19	31.3	34.1	36.9	39.8	42.6	45.5	48.3	51.2	54.0	55.4	56.8	59.7	62.5	65.4	68.2	71.0	73.9	75.3
	20	29.7	32.4	35.1	37.8	40.5	43.2	45.9	48.6	51.3	52.6	54.0	56.7	59.4	62.1	64.8	67.5	70.2	71.5
	21	28.3	30.8	33.4	36.0	38.6	41.1	43.7	46.3	48.9	50.1	51.4	54.0	56.6	59.1	61.7	64.3	66.9	68.1
	22	27.0	29.4	31.9	34.4	36.8	39.3	41.7	44.2	46.6	47.9	49.1	51.5	54.0	56.4	58.9	61.4	63.8	65.0
	23	25.8	28.2	30.5	32.9	35.2	37.6	39.9	42.3	44.6	45.8	47.0	49.3	51.6	54.0	56.3	58.7	61.0	62.2
	24	24.7	27.0	29.2	31.5	33.7	36.0	38.2	40.5	42.7	43.9	45.0	47.2	49.5	51.7	54.0	56.2	58.5	59.6
	25	23.8	25.9	28.1	30.2	32.4	34.6	36.7	38.9	41.0	42.1	43.2	45.4	47.5	49.7	51.8	54.0	56.2	57.2
	26	22.8	24.9	27.0	29.1	31.1	33.2	35.3	37.4	39.5	40.5	41.5	43.6	45.7	47.8	49.8	51.9	54.0	55.0
	27	22.0	24.0	26.0	28.0	30.0	32.0	34.0	36.0	38.0	39.0	40.0	42.0	44.0	46.0	48.0	50.0	52.0	53.0
	28	21.2	23.1	25.1	27.0	28.9	30.9	32.8	34.7	36.6	37.6	38.6	40.5	42.4	44.4	46.3	48.2	50.1	51.1
	30	19.8	21.6	23.4	25.2	27.0	28.8	30.6	32.4	34.2	35.1	36.0	37.8	39.6	41.4	43.2	45.0	46.8	47.7
	32	18.6	20.2	21.9	23.6	25.3	27.0	28.7	30.4	32.1	32.9	33.8	35.4	37.1	38.8	40.5	42.2	43.9	44.7
	PRINTING NOTE: For best results, reduce or print pages horizontally. <Gear ratios shown are approximate.> For other gears or greater accuracy, multiply drive wheel diameter in inches by number of chainring teeth, then divide by number of teeth on rear cogs for individual ratios.																26" Gérz Chart How To Use (1) How To Use (2)

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