-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathshift_credits.html
708 lines (698 loc) · 20.6 KB
/
shift_credits.html
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
<html>
<head>
<title>Mike Sherman's Bicycle Gear Calculator - Info</title>
<LINK REL="stylesheet" HREF="mike_shift.css" TYPE="text/css">
<!-- See shift.js for revision information -->
</head>
<p>
<center>
<a name="TOP"><h3>Gear Calculator v4.4.2</h3></a>
<p>
This program no longer being developed<br>
Please give the <a href="https://mike-sherman.github.io/shift/">new version</a> a try.<br>
Please send comments to:<br>
Mike Sherman at
<a href="mailto:[email protected]">[email protected]</a>
<p>
<INPUT TYPE="button" VALUE=" Help " onClick="location.href='#HELP'">
<INPUT TYPE="button" VALUE=" Credits " onClick="location.href='#CRED'">
<INPUT TYPE="button" VALUE=" Open SHIFT with your parameters " onClick="location.href='#CALL'">
<INPUT TYPE="button" VALUE=" SHIFT revision history " onClick="location.href='#REV'">
<INPUT TYPE="button" VALUE=" Source " onClick="location.href='#SRC'">
</center>
<p>
<hr>
<p>
<center>
<a name="HELP"><h3>Help</h3></a>
</center>
<a href="#TOP">Top</a><br>
<a href="index.html">Calculator</a>
<br>
<center>
My hope is that the program is pretty self-explainatory, but here are a few notes on what everything is:
<p>
<table border=0 width=80%>
<tr>
<td><font size="+1">Inputs</font>
</td>
<td>
</td>
<td>
</td>
</tr>
<tr>
</td>
<td>
<td><b>Cassette</b>
</td>
<td>Select the Rear sprockets, either from a preset on the pull-down menu, or by editing the
individual sprockets with +/- buttons.<br>
The X button removes the sprocket.
<hr>
</td>
</tr>
<tr>
<td>
</td>
<td><b>Chainrings</b>
</td>
<td>Select the Chainrings by editing the individual sprockets with +/- buttons.<br>
The X button removes the sprocket.
<hr>
</tr>
<tr>
<td>
</td>
<td><b>Wheel</b>
</td>
<td>Select a wheel and tire size from the pull down menu.
<hr>
</td>
</tr>
<tr>
<td>
</td>
<td><b>Crank</b>
</td>
<td>Select a crank arm length from the pull down menu.<br>
This value is only used for
Sheldon Brown's <a href="http://sheldonbrown.com/gain">Gain Ratio</a> Table.
<hr>
</td>
</tr>
<tr>
<td><font size="+1">Outputs</font>
</td>
<td>
</td>
<td>
</td>
</tr>
<tr>
</td>
<td>
<td><b>Gear Inch Chart</b>
</td>
<td>This is the traditional Gear Inch Chart.<br>
The values are the equivalent diameter of a direct drive wheel.<br>
Sheldon Brown has a good description on his
<a href="http://www.sheldonbrown.com/gloss_g.html#gearinch"Glossary</a>
<hr>
</td>
</tr>
<tr>
<td>
</td>
<td><b>Semi-Log Graph</b>
</td>
<td>This is my personal favorite.
The log graph can give you a pretty good idea of what a set of gears will feel like.
Evenly spaced gears on
this graph will feel evenly spaced to your legs.
<hr>
</td>
</tr>
<tr>
<td>
</td>
<td><b><a href="http://sheldonbrown.com/gain">Gain Ratio</a> Table</b>
</td>
<td>The <a href="http://sheldonbrown.com/gain">Link</a> explains it better than I can.
<hr>
</td>
</tr>
<tr>
<td>
</td>
<td><b>Rollout Table</b>
</td>
<td>This table show how far the bike moves with each revolution of the pedals.<br>
It is usually expressed in meters. I provide English or Metric units.<br>
This measurement is also know as
<a href="http://www.sheldonbrown.com/gloss_da-o.html#development">development</a>
<hr>
</td>
</tr>
<tr>
<td>
</td>
<td><b>Speed over RPM Range</b>
</td>
<td>The title pretty much explains it. You can set the upper and lower limits of your cadance.
<hr>
</tr>
<tr>
<td>
</td>
<td><b>Speed table</b>
</td>
<td>Shows you speed at the selected crank RPM.
<hr>
</td>
</tr>
<tr>
<td>
</td>
<td><b>Save/Recall/Swap Buttons</b>
</td>
<td>This is intended to help you compair two gearing configurations.<br>
The Save button saves the current selections to a cookie on your system.<br>
The Recall button will recall the saved selections. It does not save the current selections first.<br>
The Swap button swaps the current selections with the last saved selections. The current selections are saved.
<hr>
</td>
</tr>
<tr>
<td>
</td>
<td><b>Bookmark</b>
</td>
<td>I thought it would be great to be able be able to bookmark a complete set of gears. Unfortuneatly,
some browsers don't allow you to make a bookmark from javascript. I can see why they did that.<br>
On some browsers, the bookmark button will re-load the page with all of the settings imbeded in the URL and puts up a
pop-up to tell you what it did. You can then bookmark the page the normal way to save a gear set.
<hr>
</td>
</tr>
<tr>
<td>
</td>
<td><b>Highlighting</b>
</td>
<td>While the mouse is any of the cog change buttons, the element changing it will effect is highlighted on
the gear table, the log graph, and the speed graph.<br>
It does force more redrawing of the effected tables<br>
A checkbox at the bottom enables this.
<hr>
</td>
</tr>
</table>
<p>
<table border=0 width=80%>
<tr>
<td><font size="+1">Notes about Gearing</font>
</td>
<td>
<hr>
There are lots of ways to look at bicycle gearing. There are many people with strong opinions about
how bicycle gearing should be set up. I have my own opinions. I have tried not to allow them to
influence the calculator too much, but some has crept in. A user pointed this out to me with the way
the sorting works on the speed range graph.<br><br>
I suggest you look at Sheldon Brown's article <a href="http://www.sheldonbrown.com/gear-theory.html">Gear
Theory for Bicyclists</a> (edited by <a href="http://john-s-allen.com/">John Allen</a>).<br><br>
If you're interested in <a href="http://www.sheldonbrown.com/gear-theory.html#halfstep">half-step</a>
gearing you might want to look at
<a href="http://www.appleblock.com/web-tools-half-step-chrome.php">Appleblock web tools</a> half-step
gearing designer.
<hr>
</td>
</tr>
</table>
</center>
<p>
<hr>
<center>
<a name="CRED"><h3>Credits</h3></a>
</center>
<a href="#TOP">Top</a><br>
<a href="index.html">Calculator</a>
<br>
<center>
<table border=0 width=80%>
<tr><td>
This program began it's life for me as a fortran program I wrote in about 1975.
<hr>
It has evolved and morphed over the years to Basic, C, perl/cgi, and Javascript versions.
<hr>
Major influences over the years have been a BASIC program written in 1978 by my friend Richard Curtiss of Seattle,
<br>
and a C program posted on 17 Aug 1994 23:21:36 GMT on rec.bicycles.tech by
[email protected] (Paul W. Laudon x7241 (sun)).
<hr>
The program is now a client side javascript program. It was developed in 2004 because I lost my access to a server to run the perl/cgi program.
<br>
That loss turned out to be a good thing. This javascript version has evolved quite a bit with the addition of real graphics and
is proving to be quite popular.
<hr>
Thanks to JimG for the derailleur capacity code.
<hr>
Thanks to <a href="http://en.wikipedia.org/wiki/Sheldon_Brown_%28bicycle_mechanic%29">Sheldon Brown</a>
for wheel diameter data and his
<a href="http://sheldonbrown.com/gain">gain ratio</a> display method.
<hr>
Thanks to <a href="http://www.walterzorn.com/index.htm">www.walterzorn.com</a> for
the <a href="http://www.walterzorn.com/jsgraphics/jsgraphics_e.htm">DHTML JavaScript
VectorGraphics Library</a>
(seems to have been hijacked <a href="http://en.wikipedia.org/wiki/Sheldon_Brown_%28bicycle_mechanic%29">link
farm</a>)
<hr>
And thanks very much to the many users who have made suggestions and reported bugs.
</td></tr>
</table>
</center>
<p>
<p>
<p>
<hr>
<p>
<p>
<p>
<center>
<a name="CALL"><h3>Calling the calculator with a set configuration</h3></a>
</center>
<a href="#TOP">Top</a><br>
<a href="index.html">Calculator</a>
<br>
<center>
<table border=0 width=80%>
<tr><td>
The major new feature of v4.2 is the ability to call the page with a gear configuration
in the URL. This, combined with a bookmark button will allow the user to bookmark the
page with all the parameters they had selected and recall the complete selection later.
<br>
It will also allow other web pages to open the calculator with a specific configuration.
<hr>
</td></tr>
<tr><td>
<b>Programming notes</b>
<br>
Append the parameters to the url by adding a question mark (<font color=red>?</font>) followed by the program parameters you want in the format NAME=VALUE.
<br>
NAME=VALUE pairs must be separated by a "<font color=red>&</font>" character.
<br>
Only the sprockets listed in the URL will be displayed
<br>
Any values, other than sprockets, not included in the URL will be set to the default values.
<br>
Any spaces in the TITLE should be replaced with <font color=red>%20</font>.
</td></tr>
</table>
Example:
<p>
<code>
https://mike-sherman.github.io/shift_v4/index.html<font color=red>?</font>R0=30<font color=red>&</font>R1=40<font color=red>&</font>R2=50<font color=red>&</font>C0=13<font color=red>&</font>C1=15<font color=red>&</font>C2=18<font color=red>&</font>C3=21<font color=red>&</font>C4=25<font color=red>&</font>C5=30<font color=red>&</font>CR=180<font color=red>&</font>TITLE=Loaded<font color=red>%20</font>from<font color=red>%20</font>URL
</code>
</center>
<p>
<center>
<table border=0>
<tr>
<td><b>Argument NAME</b><hr></td>
<td><b>Description</b><hr></td>
<td><b>Value</b><hr></td>
</tr>
<tr>
<td>"R0"<hr></td>
<td>Smallest or Single Chainring<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"R1"<hr></td>
<td>Middle or Largest Chainring<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"R2"<hr></td>
<td>Largest Chaingring (if there are 3)<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"C0"<hr></td>
<td>Smallest Cassette or Freewheel Cog<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"C1"<hr></td>
<td>Second Smallest Cog<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"C2" - "C9"<hr></td>
<td>Freewheel or Cassette Cogs<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"C10"<hr></td>
<td>Largest Cassette Cog on an 11 speed<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"CAS"<hr></td>
<td>Index of selected Cassette<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"WI"<br> <hr></td>
<td>Wheel Index<br>
sorry, this is messy<hr></td>
<td>integer<br> <hr></td>
</tr>
<tr>
<td>"CR"<hr></td>
<td>Crank Arm Length in mm<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"RT"<br> <hr></td>
<td>Rollout Display type<br>
0 = Meters, 1 = inches ????<hr></td>
<td>integer<br> <hr></td>
</tr>
<tr>
<td>"ST"<hr></td>
<td>Speed Display type (0/1)<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"RPM"<hr></td>
<td>RPM for "Speed at" table<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"SRT"<hr></td>
<td>Units for "Speed at" table<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"lRPM"<hr></td>
<td>Low RPM for Speed over RPM range display<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"hRMP"<hr></td>
<td>High RPM for Speed over RPM range display<hr></td>
<td>integer<hr></td>
</tr>
<tr>
<td>"G"<br> <hr></td>
<td>Grid on/off for Speed over RPM range display<br>("show"/"hide")<hr></td>
<td>string<br> <hr></td>
</tr>
<tr>
<td>"S"<br> <hr></td>
<td>Sort on/off for Speed over RPM range display <br>("yes"/"no")<hr></td>
<td>string<br> <hr></td>
</tr>
<tr>
<td>"HL"<br> <hr></td>
<td>Enable mouseover highlighting<br>
1=ON / 0=OFF<hr></td>
<td>integer<br> <hr></td>
</tr>
<tr>
<td>"TITLE"<br> <hr></td>
<td>Page Title<br>
Spaces must be replaced with "%20"<hr></td>
<td>string<br> <hr></td>
</tr>
</table>
</center>
<p>
<hr>
<center>
<a name="REV"><h3>revision history</h3></a>
</center>
<a href="#TOP">Top</a><br>
<a href="index.html">Calculator</a>
<br>
<center>
<table border=0 width=80%>
<tr>
<td>08/04/2004</td>
<td>created
<hr>
</td>
</tr>
<tr>
<td>08/11/2004
<td>Added Cookies with save/recall/swap<br>
Fixed direct data entry bug with < max # cogs or rings
</td>
<tr>
<td colspan=2><font size="+1">
<hr>
<br>Version 2.0</font>
</td>
</tr>
<tr>
<td>07/13/2005 - 03/08/2007</td>
<td>Derailleur capacity added by Jim G<br>
Added 650B wheel sizes<br>
Change some input areas to text areas (looks nicer)<br>
gearTableLabel (rearcap, frontcap)<br>
Added speed table<br>
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
<br>Version 3.0</font>
</td>
</tr>
<tr>
<td>04/15/2009 - 04/18/2009</td>
<td>Graphical log plot with Walter Zorn's DHTML JavaScript
VectorGraphics Library<br>
11 speed support, Campy 11 speed cassettes <br>
Added DuraAce 10 speed cassettes<br>
Center the ascii tables when not 11 speed
Fixed bug in new centering - with 1 or 2 rings<br>
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
<br>Version 3.1</font>
</td>
</tr>
<tr>
<td>04/19/2009 - 05/05/2009</td>
<td>Split the original file up into 3 pieces<br>
Put text areas inside div's so one html file can support
both ASCII and vector graphic displays.<br>
Change graph fonts to blue.<br>
Added 29er wheels 1.95, 2.1, 2.2, more tubular widths<br>
All tables drawn with vector graphics library<br>
Some code cleanup, output functions last<br>
Added error checking logic when incrementing/decrementing cog values<br>
Added sachs 13-28, 6 sp and 13-32, 7 sp
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
<br>Version 3.2</font>
</td>
</tr>
<tr>
<td>07/21/2009</td>
<td>check the RolloutType and SpeedType each time you draw the tables
fixes a bug where display and radio buttons don't agree after a reload
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
<br>Version 3.3</font>
</td>
</tr>
<tr>
<td>10/24/2009 - 01/07/2010</td>
<td>Added zinn crank lengths request from Greg M<br>
130, 135, 140, 145, 150, 155, 160 and 190, 195, 200, 205, 210, 215, 220<br>
Add 700x23 wheel size per user request
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
<br>Version 4.0</font>
</td>
</tr>
<tr>
<td>02/01/2010 - 02/06/2010</td>
<td>Add rpm/speed range display<br>
Fixed ghosted gear number labels on the top gear table<br>
Auto scale the rpm/speed range table<br>
Add some error handling on rpm range values<br>
Switchable horizontal lines in rpm/speed range table<br>
Fix errors in cassette numbering<br>
Add labels to sorted and unsorted speed range displays<br>
Sorted rpm/speed range display
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
<br>Version 4.1</font>
</td>
</tr>
<tr>
<td>02/08/2010 - 03/24/2010</td>
<td>Resize canvas for rpm/speed<br>
Add rpm range to cookie/save/load<br>
Add spacing between label and rpm range chart<br>
Make all color selections in the graphics functions variables.<br>
- there was a private release of the code up to this point<br>
Add zero checking to readRings() and readCogs() for when users enter<br>
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
<br>Version 4.2</font>
</td>
</tr>
<tr>
<td>11/17/2010 - 1/1/2011</td>
<td>Fix display 3.00 value on gain ratio tables<br>
Fix bug displaying rollout > 10 meters<br>
Add ability to read parameters from URL<br>
Add credits page (this page)<br>
Add setCrank() function<br>
Add bookmark buttons - w & w/o the data<br>
Add bookmark/url info to credits page<br>
Add revision history to credits page.<br>
Add IRD freewheels to selectCassette.js<br>
Fix bug when typing in cogs or rings<br>
Add same fix to a few other inputs<br>
Fix typo on main page - Graphical
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
<br>Version 4.3</font>
</td>
</tr>
<tr>
<td>02/23/2011 - 04/17/2011</td>
<td>Add 20x1.5 wheel size to javascript (36) 40-406 tire (20")<br>
change bookmark to go to index.html directly<br>
Add SRAM X5 cassette to selectCassette.js & index.html (11-34, 9-speed)<br>
Clean up my internal documentation a bit.<br>
load with recall and swap - always comes back sorted<br>
sortgears is not and int - not read properly from cookie (as was showgrid)<br>
sortgears = "yes" | "no" some places it was "on" | "off"<br>
split shift.js (this file) into a bunch of smaller files for easier management<br>
selectCassette.js renamed to shiftCassettes.js<br>
recall fixed. was reading 'sort' and 'grid' from cookie w parse()= WRONG! <br>
tighten up the display a bit (index.html)<br>
tighten up the display a bit more (index.html)
fix problem with testing if there is a cookie - swap/recall problems<br>
fix a bunch of html issues (thanks to chrome)<br>
update the links to the sources, moved to credits page
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
Version 4.3.1</font>
</td>
</tr>
<tr>
<td>04/09/2011 - 05/19/2011</td>
<td>Move some functions around again.<br>
Bug fix - add update to setRPM - now display will update<br>
Bookmark set now reopens link with the arguments and posts an alert to save w Ctrl-D<br>
Speed up bookmark load - was updating screen too often<br>
Remove bookmark button (not the bookmarkSet button)<br>
Work on bookmarkSet<br>
Change default upper rpm to 100 (speed/rpm graph)<br>
Fixed problems with setting rpms on speed/rpm graph fixed parseInt problem.<br>
Same parseInt problem fixed in other areas of the code<br>
Add 700x30 wheel size<br>
Add selectedCassette() to the URL save<br>
Add code to select the correct items in the pull down menus when loaded from URL.
Now all picklists update from bookmarks<br>
Changed the names of the functions from 'write' to 'update'<br>
Add a small help section to this page<br>
Move the speed table to the bottom<br>
Fix so Check boxes get updated reading bookmarks<br>
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
Version 4.4</font>
</td>
</tr>
<tr>
<td>05/20/2011 - 05/26/2011</td>
<td>Updates to this page.<br>
Add Help button on calculator page.
Move bookmark button above the chart type selection<br>
Add highlight to gear table gear on hover over cog control buttons<br>
Add highlight to log and speed graphs<br>
Add checkbox to enable/disable highlighting<br>
Add highlighting to cog text boxes<br>
Editing a cog directly removes selected cassette<br>
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
Version 4.4.1</font>
</td>
</tr>
<tr>
<td>06/06/2011 - 06/07/2011</td>
<td>Remove border from Derailer Capacity display and link to Sheldon.<br>
Make all href's open on new page/tab<br>
Do some formatting cleanup.
</td>
</tr>
<tr>
<td colspan=2><font size="+1">
<hr>
Version 4.4.2</font>
</td>
</tr>
<tr>
<td>06/13/2011 - 07/01/2011</td>
<td>Code cleanup - standardize display I/O function names.<br>
Add URL text box to main page.<br>
Fix save/swap/recall with Chrome. Tested w FF4, FF5, Chrome, and IE7.
</td>
</tr>
<tr>
<tr>
<td colspan=2><font size="+1">
<hr>
</td>
</tr>
</table>
<p>
A more detailed change log can be found at the top of
<A href="https://github.com/mike-sherman/shift_v4/blob/master/shift.js">shift.js</a>.
</center>
<hr>
<center>
<a name="SRC"><h3>Source Code</h3></a>
</center>
<a href="#TOP">Top</a><br>
<a href="index.html">Calculator</a>
<br>
<center>
If you'd like to download a local copy of this program from <a href="https://github.com/mike-sherman/shift_v4">GitHub</a>
</table>
</center>
<p>
<hr>
<center>
<p>
Return to <a href="index.html">This version of the Gear Calculator</a>
<br>
Return to <a href="https://mike-sherman.github.io/shift/">The new version of my Gear Calculator</a>
<br>
Return to <a href="https://sites.google.com/site/wheelwrightmike/home/bicycles">My bike page</a>
<br>
Return to <a href="https://sites.google.com/site/wheelwrightmike/home">My main page</a>
</center>
</body>
</html>