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Search: Posts Made By: Dan Burkhart
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05-03-22, 06:36 AM
Replies: 12
Views: 269
Posted By Dan Burkhart

Another possibility is that sometime in the...

Another possibility is that sometime in the history of the bike, the threads were pulled out and an oversize thread repair was done with a tool such as offered by Var or J.A.Stein. In that case, the...
05-02-22, 05:22 AM
Replies: 17
Views: 425
Posted By Dan Burkhart

There sure is. The sun gears are reactionary...

There sure is. The sun gears are reactionary gears affixed to the axle. In underdrive gears, the torque will act on the axle in a rearward direction. In overdrive gears, the force is in a forward...
05-01-22, 07:20 AM
Replies: 17
Views: 425
Posted By Dan Burkhart

The brake arm does nothing to prevent the axle...

The brake arm does nothing to prevent the axle from rotating. It simply anchors the brake.
Forum: Foo
03-30-22, 07:40 PM
Replies: 12,261
Views: 2,643,466
Posted By Dan Burkhart

It would have been even funnier if the sign was...

It would have been even funnier if the sign was on a "tilt"
Forum: Foo
03-28-22, 02:20 PM
Replies: 12,261
Views: 2,643,466
Posted By Dan Burkhart

https://cimg6.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg6.ibsrv.net/gimg/bikeforums.net-vbulletin/828x908/no_pooping_f1888c336ba1b01d29c335ecde682481a8ce5596.jpg
03-21-22, 06:27 AM
Replies: 23
Views: 844
Posted By Dan Burkhart

The Marathon Plus is certainly one of the most...

The Marathon Plus is certainly one of the most puncture resistant tires on the market, but I wouldn't say they have low rolling resistance. I use them on most of my bikes, and I can't remember the...
02-02-22, 08:06 AM
Replies: 19
Views: 29,578
Posted By Dan Burkhart

I generally agree with your point, but sometimes...

I generally agree with your point, but sometimes past discussions on a topic can be useful. Maybe starting a new thread and including a link to an old thread would be acceptable.
Forum: Foo
12-30-21, 08:19 AM
Replies: 12,261
Views: 2,643,466
Posted By Dan Burkhart

https://cimg5.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg5.ibsrv.net/gimg/bikeforums.net-vbulletin/750x659/department_of_corrections_d0f6caef04304748e123432ad8e4d8c366d97c52.jpg
Forum: Foo
12-09-21, 07:13 AM
Replies: 32
Views: 1,567
Posted By Dan Burkhart

Oh gawd, that channel is a serious rabbit hole,...

Oh gawd, that channel is a serious rabbit hole, only with cats.
12-08-21, 10:33 AM
Replies: 9
Views: 400
Posted By Dan Burkhart

Also possible that the 44mm is the profile, or...

Also possible that the 44mm is the profile, or depth of the rim if it is a carbon rim in which case that number will have no relation to the width of tire that can be mounted.
12-07-21, 10:24 AM
Replies: 4
Views: 450
Posted By Dan Burkhart

Magneto bearings in bicycle hubs

This has never been very popular, but it has been done over the years. Most notably, Maxi Car of years ago had them.
More recently, Curtis Odom used them in some of his hubs.
Now, if you read up...
12-04-21, 07:45 AM
Replies: 1,693
Views: 347,519
Posted By Dan Burkhart

https://cimg6.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg6.ibsrv.net/gimg/bikeforums.net-vbulletin/355x532/john_wayne_on_a_bike_70ce4b34c3c8115095beb82822c7ccb02df3894b.jpg
12-04-21, 07:08 AM
Replies: 5
Views: 313
Posted By Dan Burkhart

The best way to find out is to test fit a set....

The best way to find out is to test fit a set. I've done a few wheel size conversions that worked out well. Most recently about a year ago I converted a 2008 MTB with 26" wheels to 650B. The customer...
Forum: Foo
11-30-21, 03:03 PM
Replies: 12,261
Views: 2,643,466
Posted By Dan Burkhart

https://cimg5.ibsrv.net/gimg/bikeforums.net-vbulle...

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11-26-21, 07:23 AM
Replies: 62
Views: 2,305
Posted By Dan Burkhart

I have helped a couple of adults who had never...

I have helped a couple of adults who had never been on a bike in their lives.
As above, I would remove the pedals and have them ride it like a hobby horse until they get the idea.
The one thing...
Forum: Foo
11-25-21, 06:05 PM
Replies: 12,261
Views: 2,643,466
Posted By Dan Burkhart

https://cimg9.ibsrv.net/gimg/bikeforums.net-vbulle...

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Forum: Foo
11-19-21, 03:44 PM
Replies: 12,261
Views: 2,643,466
Posted By Dan Burkhart

https://cimg1.ibsrv.net/gimg/bikeforums.net-vbulle...

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Forum: Foo
11-11-21, 09:58 AM
Replies: 12,261
Views: 2,643,466
Posted By Dan Burkhart

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/800x800/killed_by_nail_biting_97ce0966af510c5505b72014b5fd30187f8f15a6.jpg
11-09-21, 06:35 AM
Replies: 82
Views: 3,769
Posted By Dan Burkhart

And a fourth called Fillmore....

And a fourth called Fillmore. https://www.reservewheels.com/fillmore-tubeless-valves
Actually, it is tubeless only, and although I have never tried them, I think I will.
11-09-21, 06:18 AM
Replies: 14
Views: 641
Posted By Dan Burkhart

Woah, put down that spoke wrench! 2 X is correct...

Woah, put down that spoke wrench! 2 X is correct for that build. I would NOT do 3 X on that small rim.
Forum: Foo
11-09-21, 05:56 AM
Replies: 12,261
Views: 2,643,466
Posted By Dan Burkhart

https://cimg7.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg7.ibsrv.net/gimg/bikeforums.net-vbulletin/800x889/dominos_3f8621deff94d2ecbe6a9c3f36820d9f570f6759.jpg
11-07-21, 06:42 AM
Replies: 10
Views: 435
Posted By Dan Burkhart

I can provide silver Sapim Race (double butted...

I can provide silver Sapim Race (double butted 2.0/1.8/2.0 ) custom cut to your specs for $1.20 Canadian apiece plus shipping.
The Canadian dollar is currently running about 80 cents so that works...
11-06-21, 06:18 AM
Replies: 9
Views: 411
Posted By Dan Burkhart

Pinch bolts are less effective on Teflon coated...

Pinch bolts are less effective on Teflon coated cables. You might have more success if you scrape the coating off where it pinches. Otherwise, you really have to torque down on it.
11-01-21, 05:37 AM
Replies: 24
Views: 956
Posted By Dan Burkhart

No, I don't think you missed anything, and...

No, I don't think you missed anything, and thinking this over and doing some more reading, I think I have to agree with you. No question, for strength and durability, tapered roller wins, but the...
10-30-21, 08:54 PM
Replies: 11
Views: 471
Posted By Dan Burkhart

I think you may be in luck. Shimano 11 speed road...

I think you may be in luck. Shimano 11 speed road cassettes with a 34 tooth cog are made to fit 8/9/10 speed hub
10-30-21, 05:54 AM
Replies: 24
Views: 956
Posted By Dan Burkhart

Once an axial force is introduced, any friction...

Once an axial force is introduced, any friction advantage of a deep groove radial bearing is lost in addition to subjecting it to accelerated wear. I think angular contact is the only suitable option...
10-29-21, 02:38 PM
Replies: 594
Views: 17,295
Posted By Dan Burkhart

Well, if we all try just a little bit harder, we...

Well, if we all try just a little bit harder, we can maybe shove this thread off the cliff and dash it to pieces on the rocks below.
10-24-21, 02:33 PM
Replies: 59
Views: 2,560
Posted By Dan Burkhart

The Shimano anti rotation washers will not fit...

The Shimano anti rotation washers will not fit without a bit of filing. Shimano Nexus axles are 3/8, SA is 13/32.
Also, if you are using the current production 5 speed, it is a rotary shift, and the...
10-12-21, 09:12 AM
Replies: 26
Views: 1,103
Posted By Dan Burkhart

https://cimg7.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg7.ibsrv.net/gimg/bikeforums.net-vbulletin/828x1025/torque_wrench_fc8dd50b809f57b4b97c82e7b8ea6fb90bb9cb49.jpg
...
10-08-21, 06:20 AM
Replies: 32
Views: 1,215
Posted By Dan Burkhart

If the threads have just disappeared into the...

If the threads have just disappeared into the nipple, you still have quite a ways to go before running out of thread. I would keep tightening and watch the back side of the nipple to see if it comes...
09-12-21, 06:12 AM
Replies: 2
Views: 336
Posted By Dan Burkhart

Yup, you've pretty much got it. The primary...

Yup, you've pretty much got it. The primary difference between the Sachs mechanism and Sturmey Archer is that the ring gear pawls are taken out of action in first gear by moving the whole ring gear...
09-05-21, 09:13 AM
Replies: 4
Views: 247
Posted By Dan Burkhart

You do have the modern version. This video...

You do have the modern version. This video demonstrates the design changes.
https://www.youtube.com/watch?v=-UyHVWsvzQs
08-08-21, 07:34 PM
Replies: 8
Views: 354
Posted By Dan Burkhart

Common issue with straight pull spokes. These...

Common issue with straight pull spokes. These days, I build at least as many wheels with straight pulls as with J bend, and some way of holding the spoke from rotating is a must.
I use a twist...
Forum: Foo
07-12-21, 07:39 AM
Replies: 12,261
Views: 2,643,466
Posted By Dan Burkhart

I wonder if a winning lottery ticket was...

I wonder if a winning lottery ticket was involved. Cue Johnny Paycheck.
07-11-21, 12:28 PM
Replies: 21
Views: 1,038
Posted By Dan Burkhart

Sapim Race are 14/15, not 14/16.. That said, I...

Sapim Race are 14/15, not 14/16.. That said, I did come across one bag of Race blanks that were 1.7 mm just like the Wheelsmiths. That was an anomaly however among the many thousands of them I have...
07-06-21, 06:02 AM
Replies: 13
Views: 1,381
Posted By Dan Burkhart

3 x will give you a spoke entry angle of over 8...

3 x will give you a spoke entry angle of over 8 degrees. Not horrible, but with a small rim like that, I would go 2x. Spoke angle will be around 6 degrees.
06-10-21, 02:23 PM
Replies: 29
Views: 1,403
Posted By Dan Burkhart

A 100% markup equates to 50% margin. The smalls...

A 100% markup equates to 50% margin. The smalls will be well over that, the big stuff, considerably less. 35% margin on bikes was good when I ran my shop. If your business plan is not predicated on...
06-07-21, 05:45 AM
Replies: 9
Views: 1,181
Posted By Dan Burkhart

Exactly right. I do a lot of wheel repairs for...

Exactly right. I do a lot of wheel repairs for three different bike shops and numerous individuals, and I always try to steer people towards wheels that use standard vendor components (spokes and...
06-03-21, 06:19 AM
Replies: 15
Views: 626
Posted By Dan Burkhart

That's really good pricing in your link. ...

That's really good pricing in your link.
Question about the Alpine spokes. I've never used them, but I use lots of Competitions and they have enough 2.0 shaft that they can usually be shortened by...
06-02-21, 08:47 PM
Replies: 15
Views: 626
Posted By Dan Burkhart

I might be able to help you out. I have tons of...

I might be able to help you out. I have tons of DT Swiss Competition (2.0/1.8/2.0 silver) in lengths up to 284 mm and can custom cut to your required length. For longer lengths, I have some Sapim...
06-01-21, 05:52 AM
Replies: 57
Views: 5,365
Posted By Dan Burkhart

When peened pins with the ends nearly flush with...

When peened pins with the ends nearly flush with the outer plates appeared, that's when. If you are pushing pins in and out of modern chains, you are looking for trouble.
05-23-21, 06:46 AM
Replies: 52
Views: 2,700
Posted By Dan Burkhart

An oil change on the 11 speed Alfine is a drain...

An oil change on the 11 speed Alfine is a drain and fill procedure. Removal of the internals is not necessary.
I made the above video, however many years ago that was, in response to all the...
05-22-21, 07:45 AM
Replies: 20
Views: 1,902
Posted By Dan Burkhart

If spoke tension is equal on both sides, the rim...

If spoke tension is equal on both sides, the rim will be centered between the flanges. If the flanges are offset due to a freehub, or disc brake mount, the rim heeds to be centered between the...
05-22-21, 05:28 AM
Replies: 13
Ign
Views: 1,182
Posted By Dan Burkhart

I've lost track of the number of IGH conversions...

I've lost track of the number of IGH conversions I've done, but it is many dozens and covers everything from 2 speed to 14.
As long as dropout spacing and over locknut dimensions either are, or can...
05-16-21, 08:55 PM
Replies: 9
Views: 376
Posted By Dan Burkhart

You have a Shimano Nexus 3 speed. The bolt head...

You have a Shimano Nexus 3 speed. The bolt head that you have circled in your photo should be the means to secure the bell crank onto the axle. It should not matter if you moved the shifter to...
05-14-21, 01:05 PM
Replies: 10
Views: 750
Posted By Dan Burkhart

That is why some ebike mfgs now add the pinch...

That is why some ebike mfgs now add the pinch bolt I showed the photo of above. If the OP ever decides to respond, maybe we will learn more.
05-13-21, 02:05 PM
Replies: 4
Views: 371
Posted By Dan Burkhart

Sometimes, it just takes patience. The last set...

Sometimes, it just takes patience. The last set of shifters I managed to free up with WD40 was an old Shimano Tri Color set that would not catch going up or down. For about three days, I kept dousing...
05-13-21, 11:41 AM
Replies: 10
Views: 750
Posted By Dan Burkhart

Many ebikes with a rear hub motor have special...

Many ebikes with a rear hub motor have special dropouts that capture the axle across the flats and have a bolt through the dropout from front to rear to keep the axle of the hub motor from torqueing...
05-09-21, 05:40 AM
Replies: 11
Views: 1,152
Posted By Dan Burkhart

The Velocity website says the A23 has a tubeless...

The Velocity website says the A23 has a tubeless ready design. In an earlier reply, I specified current generation A23, because earlier generations were not as far as I know...
Forum: Foo
05-05-21, 10:05 AM
Replies: 26
Views: 1,345
Posted By Dan Burkhart

I love mine. The grand kiddies love it too. ...

I love mine. The grand kiddies love it too.
https://cimg3.ibsrv.net/gimg/bikeforums.net-vbulletin/960x720/big_dummy_1_2__264b30cbf276634dda1de98796a4ab0348a7619d.jpg

Just to give you an idea how...
Showing results 1 to 50 of 213
 


 
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