FFT helps you find optimal tyre by surface conditions_[quick link fft.tips/surface]

	B	C	D	E	H	I	AE
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2							VALIDATION
3	Find Optimal Tyre Size for any Surface						rim
4		New! 50% off training plan (code="TIZ") based on your inputs: https://www.cyclingapps.net/coaching/order-personalized-adaptive-training-plan/					15
5							15.5
6		>> helps you work out the best tyre for each riding surface by rolling resistance (as well as weight / rim size) <<					16
7		ps. be careful not to exceed tyre recommendations					16.5
8							17
9		Your weight (with bike & equipment)	240	Lbs			17.5
10			109.1 kg				18
11		Do you have preferred Tyre Width?	25	mm			18.5
12							19
13		Internal Rim Bead Width/Size (default is 22c)	19	mm (c)			19.5
14			20				20
15		External Rim Width (leave BLANK if Unknown)		mm (c)			20.5
16		if you don't know your wheel width then our guess is >>	24.2	mm			21
17		closest tyre that will "blow up" to match this rim is about >>	20.9	mm			21.5
18		perhaps corresponding to the following	Continental GP4000SII 23C	<< experimental			22
20							23
21							23.5
22		Enter Surface Conditions (% or ratio or distance)	Distance on 0 to 100 scale	Severity			24
23							24.5
24							25
25		Amount of Gravel/Off Road.....	0	moderate			25.5
26			0% CRR= 0.0199				26
27							26.5
28		Amount of Cobbles.....	0	moderate			27
29			0% CRR= 0.0199				27.5
30							28
31		Rough tarmac.....	0				28.5
32			0% CRR= 0.0085				29
33							29.5
34		Normal / typical tarmac.....	100				30
35			98% CRR= 0.0046				30.5
36							31
37		Super smooth tarmac.....	2				31.5
38			2% CRR= 0.0042				32
39							32.5
40		Your overall surface is described as…………..	All Tamac				33
41			ave CRR = 0.00457				33.5
42							34
43							34.5
44		For this surface, your rim & your weight recommend tyre is	25.8	mm		alternative calc:	35
45		At this size (25.8mm) ...then pressure should be about	131.7	psi	https://fft.tips/pressure		35.5
46		At this size & pressure ...then contact patch will be about	326.7	mm2			36
47		At this pressure, we estimate your tyre will actually measure...	28.2	mm			36.5
48							37
49	vs your choice...						37.5
50		but you self-selected a tyre size of 25mm	25	mm			38
51		At this size (25mm) ...then pressure should be about	134.3	psi			38.5
52		At this size & pressure ...then contact patch will be about	314.2	mm2			39
53		At this pressure, we estimate your tyre will actually measure...	26.8	mm			39.5
54							40
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66		https://fft.tips/surface
67
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69
70		https://fft.tips/pressure2
71
72		https://fft.tips/tyre2
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