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Search: Posts Made By: mrrabbit
Showing results 1 to 27 of 27
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Forum: Bicycle Mechanics
05-11-23, 12:23 PM
Replies: 103
Views: 3,224
Posted By mrrabbit

That's one good question right there: If...

That's one good question right there:

If they respond with any method that involves pressing against the sides of the rim OR pressing down upon the hub without clarifying details - I already know...
Forum: Bicycle Mechanics
01-04-23, 07:24 PM
Replies: 37
Views: 1,105
Posted By mrrabbit

Weird that people keep throwing this around or...

Weird that people keep throwing this around or that around when I've posted this here probably a dozen times already...

http://www.mrrabbit.net/docs/freewheel_hub_dimension_A_OLD_sizing.pdf

In...
Forum: Bicycle Mechanics
12-16-22, 06:35 PM
Replies: 72
Views: 3,609
Posted By mrrabbit

Wasn't aware this was the Chicken Little forum......

Wasn't aware this was the Chicken Little forum...

=8-(
Forum: Bicycle Mechanics
11-19-22, 12:53 AM
Replies: 53
Views: 1,921
Posted By mrrabbit

1. There's radial with head out, and radial...

1. There's radial with head out, and radial heads in. Try it sometimes - the 3.2mm offset difference will show.

2. The spokes laced / under over are heading out at 2x, 3x or 4x. The actual...
Forum: Bicycle Mechanics
05-02-21, 12:51 PM
Replies: 54
Views: 23,088
Posted By mrrabbit

Originally, it was thought that Aluminum frames...

Originally, it was thought that Aluminum frames introduced in the mid-80s onward would have the overall advantage.

So they all had lifetime warranties initially. And of course, the promise that...
Forum: Bicycle Mechanics
05-02-21, 12:35 PM
Replies: 11
Views: 1,344
Posted By mrrabbit

Technically, all modern day rims are tubeless...

Technically, all modern day rims are tubeless ready.

You can take pretty much any clincher rim and convert it to tubeless. It's all about proper installation of the right kind of tape and sealant...
Forum: Bicycle Mechanics
05-01-21, 04:23 PM
Replies: 25
Views: 1,943
Posted By mrrabbit

First off, before even trying to align a rear...

First off, before even trying to align a rear derailleur hanger...the rear wheel must first be verified as a properly dished wheel.

THEN . . . that wheel is to be installed centered between the...
Forum: Bicycle Mechanics
04-13-21, 02:10 PM
Replies: 13
Views: 1,634
Posted By mrrabbit

Some hubs like the Chosen A5012 are part. 1....

Some hubs like the Chosen A5012 are part.

1. Locknut inside hub on non-drive side is loosened first.
2. Then freehub is loosened and removed.

Both sides use a 11mm allen wrench.

=8-|
Forum: Bicycle Mechanics
12-05-20, 12:36 PM
Replies: 18
Views: 2,467
Posted By mrrabbit

Gap calipers . . . . . . so long as sidewall...

Gap calipers . . .

. . . so long as sidewall thickness is .5 mm or more, there's some life left.

Most rims start at 1.4 to 1.6mm

=8-)
Forum: Bicycle Mechanics
11-23-20, 07:11 PM
Replies: 21
Views: 2,262
Posted By mrrabbit

You're doing it wrong. The only time you...

You're doing it wrong.

The only time you loosen is to RESET and START OVER.

1. Loosen - tap with a plastic or rubber mallet to ensure the wheel is reset - i.e. has serious slack or play.
2. ...
Forum: Bicycle Mechanics
11-14-20, 10:08 PM
Replies: 60
Views: 4,424
Posted By mrrabbit

Stress Relieving =8-|

Stress Relieving

=8-|
Forum: Bicycle Mechanics
10-07-20, 09:05 PM
Replies: 26
Views: 2,120
Posted By mrrabbit

It will crack where the seattube meets the bottom...

It will crack where the seattube meets the bottom bracket lug.

It's made in Mexico....the cracking issue at the BB applies to 850, 1000, 1500, 2000 and sadly, 3000 modelos after 1981.

While the...
Forum: Bicycle Mechanics
10-06-20, 11:23 AM
Replies: 2
Views: 777
Posted By mrrabbit

1. No super lights or light weights . . . middle...

1. No super lights or light weights . . . middle weights on up. You want inner wall thicknesses of 2.2mm or higher.
2. Washers are NOT hole fillers - they are head / elbow spacers.
3. The...
Forum: Bicycle Mechanics
10-06-20, 11:09 AM
Replies: 14
Views: 3,617
Posted By mrrabbit

Bent cage . . . been in a side-swipe type...

Bent cage . . . been in a side-swipe type accident . . . and someone tried to bend it back . . . a little too far.

Repairable by the way.

=8-|
Forum: Bicycle Mechanics
07-05-20, 01:08 PM
Replies: 38
Views: 1,781
Posted By mrrabbit

2 Kinds of dish for 99.9999% of the bicycles we...

2 Kinds of dish for 99.9999% of the bicycles we ride:

1. Adjective dish (appearance) caused by dual flanged hubs.
2. Verb dish (action) which is a TECHNICAL requirement for building ALL wheels....
Forum: Bicycle Mechanics
07-05-20, 12:16 PM
Replies: 18
Views: 1,290
Posted By mrrabbit

You should change your sig: "Your Daily Dose...

You should change your sig:

"Your Daily Dose - Common Sense Rx"

=8-)
Forum: Bicycle Mechanics
07-01-20, 08:38 PM
Replies: 11
Views: 1,092
Posted By mrrabbit

#1...

#1 (https://www.bikeforums.net/usertag.php?do=list&action=hash&hash=1) cause of broken nipples is spokes that are too short.

Nipples are fasteners, not spoke extenders.

A properly built wheel...
Forum: Bicycle Mechanics
05-31-20, 06:17 PM
Replies: 26
Views: 1,664
Posted By mrrabbit

Do a stress relief cycle...see if any more break....

Do a stress relief cycle...see if any more break.

=8-|
Forum: Bicycle Mechanics
05-30-20, 03:34 PM
Replies: 19
Views: 1,283
Posted By mrrabbit

People seem to have a hard time understanding...

People seem to have a hard time understanding that the stress relieving process has multiple benefits:

1. Early on, it assists with spoke setting.
2. Near finishing point, reveals if more work...
Forum: Bicycle Mechanics
05-28-20, 10:34 AM
Replies: 27
Views: 1,557
Posted By mrrabbit

There are three levels for polish for stainless...

There are three levels for polish for stainless steel spokes:

no polish
semi-polished
polished

CN and Wheelsmith by default do polished.

But I've had CN do semi-polish for me in the past.
Forum: Bicycle Mechanics
05-23-20, 08:56 AM
Replies: 9
Views: 552
Posted By mrrabbit

If the hubs are pure french....there's a slight...

If the hubs are pure french....there's a slight possibility they might be 13 balls rear (Maillard Helicomatic), much smaller (3/16 or 5/32) than the ball bearings we see for the typically 10 front...
Forum: Bicycle Mechanics
09-09-19, 11:10 PM
Replies: 46
Views: 15,763
Posted By mrrabbit

What's really important here is that you have an...

What's really important here is that you have an assembly by which to keep the meter calibrated.

As general rule of thumb for modern day alloy rims:

Single wall = 90 to 95 kgf
Double wall = 95...
Forum: Bicycle Mechanics
09-03-19, 09:27 PM
Replies: 6
Views: 2,944
Posted By mrrabbit

There's science and engineering... ...then...

There's science and engineering...

...then there's application.

Spoke calculator should simply provide a calculated length result.

Because a DT Swiss double butted 2.0 / 1.8 / 2.0 will...
Forum: Bicycle Mechanics
09-03-19, 09:11 PM
Replies: 94
Views: 10,368
Posted By mrrabbit

Wow...just wow... 1. Most alloy rims are...

Wow...just wow...


1. Most alloy rims are rated for 90kgf to 110kgf tension AFTER a proper stress relieving cycle has been done.

2. Select makes and models can survive 110kgf to 130kgf.

3....
Forum: Bicycle Mechanics
05-14-19, 02:04 PM
Replies: 6
Views: 779
Posted By mrrabbit

At a minimum...when a wheel is done: 1. Ends...

At a minimum...when a wheel is done:

1. Ends of the spokes must penetrate the thickness of the inner wall of the rim.
2. Come up to about 1.5mm below the screwdriver slot of the nipple.

That's...
Forum: Bicycle Mechanics
02-16-10, 07:44 PM
Replies: 13
Views: 12,045
Posted By mrrabbit

Look at the screwdriver flat portion of the...

Look at the screwdriver flat portion of the nipples:

1. If spoke end has passed it - result = ok
2. If spoke end has reached the flat - result = ok
3. If spoke end has come up to within a...
Forum: Road Cycling
06-23-09, 01:07 AM
Replies: 42
Views: 8,727
Posted By mrrabbit

I ride a 2001 Sintesi... It is definitely...

I ride a 2001 Sintesi...

It is definitely not a criterium bike - it has what I describe as a tad of understeer - I have to force the bike into a sharp turn when I need to...

The seatube is...
Showing results 1 to 27 of 27


 
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