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Search: Posts Made By: SBinNYC
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09-04-19, 08:33 AM
Replies: 8
Views: 559
Posted By SBinNYC

I've been a ride leader for my club for...

I've been a ride leader for my club for approximately 45 years. We give a "2 minute" safety talk/check that was originally required by our insurance company. It would cover several problems your...
Forum: Northeast
01-30-19, 06:04 PM
Replies: 47
Views: 6,776
Posted By SBinNYC

Which way were you traveling?

Which way were you traveling?
01-02-19, 06:00 PM
Replies: 13
Views: 590
Posted By SBinNYC

I'm still using a 50+ year old "bottle" Miller...

I'm still using a 50+ year old "bottle" Miller sidewall generator. It produces AC. The battery backups used a relay that connected the lights to either the generator or the batteries. Incandescent...
01-02-19, 05:49 PM
Replies: 13
Views: 590
Posted By SBinNYC

The modern German dynamos use 2 wires rather than...

The modern German dynamos use 2 wires rather than a ground return. This provides a more secure electrical contact and avoids possible electrolysis problems.

The preferred wiring method is to run 2...
Forum: Northeast
11-24-18, 08:32 AM
Replies: 1
Views: 603
Posted By SBinNYC

The Queensboro Bridge shared use pedestrian/bike...

The Queensboro Bridge shared use pedestrian/bike path is already over-crowded. It's LOS is D between 7 and 8am and F between 8 and 9am. There's been an effort to separate the pedestrians and bikes...
11-17-18, 08:45 AM
Replies: 20
Views: 1,487
Posted By SBinNYC

It's a long way off. At present the collision...

It's a long way off. At present the collision rate for autonomous vehicles is about 20 times that of human driven vehicles. In particular, autonomous vehicles have a difficult time reacting to...
11-08-18, 06:18 PM
Replies: 14
Views: 566
Posted By SBinNYC

I use the exact same tire: 700c x 28mm wire bead....

I use the exact same tire: 700c x 28mm wire bead. I have not had any hop problems. I've mounted them on Super Champion Mod 58, the Rigida knockoff of the Super Champion Gentleman and a Velo Orange...
10-17-18, 08:38 AM
Replies: 10
Views: 442
Posted By SBinNYC

You failed to emphasize that gears should be...

You failed to emphasize that gears should be changed while pedaling and that the chain cannot be taut. This means that the rider should anticipate the gear change when approaching a hill not wait...
10-11-18, 09:17 AM
Replies: 15
Views: 447
Posted By SBinNYC

You are correct. You want the 26 mm for proper...

You are correct. You want the 26 mm for proper chainline. Thus for a symmetrical bottom bracket the spindle length should be: 26 + 68 + 26 = 120 mm.

You can use bottom bracket spacers, if you are...
10-09-18, 08:27 PM
Replies: 73
Views: 2,872
Posted By SBinNYC

Rema makes a lot of products for repairing...

Rema makes a lot of products for repairing motorcycle, car and truck tubes and tires. Their bicycle business is small compared to the other applications for their products. Therefore, their U.S....
10-09-18, 12:11 PM
Replies: 10
Views: 350
Posted By SBinNYC

There's more to it than the crank position...

There's more to it than the crank position relative to the taper. There's the question of whether the crank or chainwheel will clear the chainstay. Although, there's the question whether the crank...
10-09-18, 09:50 AM
Replies: 10
Views: 350
Posted By SBinNYC

This may be a photo problem. The spindle...

This may be a photo problem.

The spindle does not appear to be symmetrical. The left side appears to be longer than the right because there is no round section showing on the right side. This used...
10-09-18, 09:43 AM
Replies: 15
Views: 577
Posted By SBinNYC

I'll second the call for a picture showing the...

I'll second the call for a picture showing the freewheel.

Regarding Mafac Racer brakes, the adjusters are usually found on the levers...
10-09-18, 09:34 AM
Replies: 73
Views: 2,872
Posted By SBinNYC

This does not exactly relate to the quote but...

This does not exactly relate to the quote but there are other aspects.

Long ago (shortly after WW II and probably before), bike shops would patch tubes (with hot vulcanizing fluid) if someone came...
09-20-18, 12:38 PM
Replies: 73
Views: 2,872
Posted By SBinNYC

I wrote this a while back for rec.bicycles.tech....

I wrote this a while back for rec.bicycles.tech. I still follow it.

There are a couple of differences with the Rema video.

1. I lie the tube flat on a hard surface (a Rema box). It's important...
09-18-18, 08:45 AM
Replies: 7
Views: 385
Posted By SBinNYC

I had a different experience with Weinmann...

I had a different experience with Weinmann Concave rims. They had a nasty habit of taco-ing on most falls. They would spring back, if force were applied to the rims. Another complaint against...
Forum: Northeast
09-18-18, 08:25 AM
Replies: 6
Views: 517
Posted By SBinNYC

1. I assume the "Salt Marsh" rest stop was Marine...

1. I assume the "Salt Marsh" rest stop was Marine Park. If Forest Park is any example, the fault for there being no mechanic might not lie with the mechanic.

I've been a volunteer mechanic for the...
09-16-18, 07:07 AM
Replies: 6
Views: 270
Posted By SBinNYC

Your brake pads were probably properly installed....

Your brake pads were probably properly installed. The problem is with brake arms that pivot from the side, like center pulls or one of the dual pivot brake arms. The arm movement is both towards the...
09-12-18, 07:50 AM
Replies: 18
Views: 450
Posted By SBinNYC

It's basically the same mechanism for pinched...

It's basically the same mechanism for pinched flats. The tire sidewall rubs against either the ground or the wheel flange. There's no guarantee that the tube will find a void between tire and wheel...
09-11-18, 06:55 PM
Replies: 18
Views: 450
Posted By SBinNYC

You probably got the cut because you are running...

You probably got the cut because you are running a 23 mm wide tire at too low a pressure. Depending on your weight it should be: 100 psi for a 130 lb weight; 115 psi for a 185 lb weight; and 130 psi...
Forum: Northeast
09-11-18, 06:38 PM
Replies: 6
Views: 517
Posted By SBinNYC

I was doing bike repair at Forest Park for the 75...

I was doing bike repair at Forest Park for the 75 and 100 milers. I got wet despite a tent and wearing a rain jacket under my apron.

There were a lot of flat tires.
09-11-18, 07:10 AM
Replies: 10
Views: 782
Posted By SBinNYC

You have left out some details that might provide...

You have left out some details that might provide clues.

1. What type of rim? Single wall or double wall? Are there eyelets? What's the width?
Judging by the perceived dimples on the photo, I'd...
Replies: 84
Views: 6,306
Posted By SBinNYC

The dextrose tablets are indeed fast acting...

The dextrose tablets are indeed fast acting sugars. I got them at Karl Ehmer one of the local German food markets in NYC. It was a German product. I don't know what it was doing among the smoked...
Replies: 84
Views: 6,306
Posted By SBinNYC

I survived PBP back in 1979 and 1983. I...

I survived PBP back in 1979 and 1983. I considered myself a marginal rider and managed to survive by careful planning. Here are some of the tricks that got me through.

1. I got "adopted" by a...
08-27-18, 12:49 PM
Replies: 7
Views: 397
Posted By SBinNYC

1. This question might be more appropriate for...

1. This question might be more appropriate for the Bicycle Mechanics forum.
2. If you cannot figure out what size tube you need from looking at the bike, you should consider going to a local bike...
07-25-18, 06:45 AM
Replies: 62
Views: 2,730
Posted By SBinNYC

One important difference between Rema patches and...

One important difference between Rema patches and its imitators is that the Rema's clear layer is cellophane not plastic.

If you look very carefully at a Rema patch, you will notice there's a...
07-16-18, 08:20 AM
Replies: 44
Views: 1,878
Posted By SBinNYC

It depends on whether you have a solid or hollow...

It depends on whether you have a solid or hollow (skewer quick relase) axle.

On a solid axle, the the tightening wing nuts are pulling the axle against the frame. The locknuts will prevent axle...
07-16-18, 07:52 AM
Replies: 3
Views: 1,221
Posted By SBinNYC

You don't need to remove a wheel to patch a tube...

You don't need to remove a wheel to patch a tube - only to replace one.

1. With the wheel still on the bike, use your tire irons to remove the tire bead from one side. Preferably the non-driving...
06-06-18, 05:04 AM
Replies: 28
Views: 2,161
Posted By SBinNYC

First, You're considering the avoidance of a...

First, You're considering the avoidance of a collision not the effects of the collision.

Here's what the AAA discovered regarding the relationship between impact speed and the probability of...
06-05-18, 11:47 AM
Replies: 25
Views: 979
Posted By SBinNYC

Are the "fully retracted" pads flush with the...

Are the "fully retracted" pads flush with the brake body or to the extend beyond the body?

If they extend beyond the brake body, then the problem is with the brake mechanism. You might try to...
06-05-18, 10:17 AM
Replies: 25
Views: 979
Posted By SBinNYC

With the wheel off, do the left and right pad...

With the wheel off, do the left and right pad adjustment screws have any effect on the clearance?
04-20-18, 08:35 AM
Replies: 19
Views: 3,401
Posted By SBinNYC

The front of the first wave is constrained to 15...

The front of the first wave is constrained to 15 mph. The rear of the last wave must maintain a 6 mph speed. Riders can ride at any safe speed between the tour's front and rear.

Faster riders...
04-06-18, 06:26 PM
Replies: 3
Views: 417
Posted By SBinNYC

None also works. Adjust the limit screws,...

None also works.

Adjust the limit screws, then take out any cable slack by setting the cable anchor bolt. There's no need for any additional cable adjustment with friction shifters.
01-07-18, 11:26 AM
Replies: 23
Views: 970
Posted By SBinNYC

The Harris link shows a claw that will work with...

The Harris link shows a claw that will work with a horizontal dropout. It won't work with a vertical dropout.

Here are links to 2 emergency universal hangers that will work with both dropouts.
...
12-03-17, 08:30 PM
Replies: 25
Views: 1,421
Posted By SBinNYC

The original poster did not mention the rim...

The original poster did not mention the rim material nor the brakes pad he tried. Others have mentioned that chrome plated steel rims are especially bad in rain. If the rims are chrome plated steel,...
11-26-17, 12:06 PM
Replies: 51
Views: 2,452
Posted By SBinNYC

Wholeheartedly. I merely wanted to...

Wholeheartedly.


I merely wanted to point out the perils of using accelerometers for estimating velocity and position.
11-26-17, 10:23 AM
Replies: 51
Views: 2,452
Posted By SBinNYC

The reason for the delay in registering speed...

The reason for the delay in registering speed changes isn't due to the system's slow response to sensor input. Measuring a rate of change by differentiation means that high speed changes due to noise...
11-26-17, 10:17 AM
Replies: 51
Views: 2,452
Posted By SBinNYC

There's a fundamental problem with using...

There's a fundamental problem with using accelerometers. No instrument can distinguish between inertial (due to changes in motion) and gravitational acceleration. That's part of Einstein's General...
11-26-17, 10:00 AM
Replies: 51
Views: 2,452
Posted By SBinNYC

You could achieve the result of a quicker low...

You could achieve the result of a quicker low speed response by adding magnet(s) to additional spoke(s).
Forum: Northeast
09-28-17, 10:27 AM
Replies: 11
Views: 827
Posted By SBinNYC

Just for the record, here's the public transit...

Just for the record, here's the public transit way to get from Yonkers to LGA.

1. Take Metro North from the Yonkers station to 125th St (2 trains/hr 15-25 min travel time)
2. Take the M60 bus...
09-27-17, 05:12 PM
Replies: 31
Views: 13,586
Posted By SBinNYC

Bikit may have had a good idea. Unfortunately,...

Bikit may have had a good idea. Unfortunately, the implementation was lacking. Those yellow pods dried out quicker than a tube of vulcanizing fluid.
Forum: Northeast
07-05-17, 09:34 AM
Replies: 14
Views: 1,053
Posted By SBinNYC

If you are looking for an organized ride that...

If you are looking for an organized ride that covers this ground and others, try the Harlem River Rail Ride.

Here's a link (http://www.harlemvalleyrailride.com/)
Forum: Northeast
07-05-17, 09:28 AM
Replies: 23
Views: 2,376
Posted By SBinNYC

My club used to run a NYC-DC 24 hour ride. If...

My club used to run a NYC-DC 24 hour ride. If you're interested, send me a request through bikeforums.

The US 40 bridge between Elkton and Havre de Grace does not permit bicycles. Your route...
04-28-17, 07:48 AM
Replies: 41
Views: 3,038
Posted By SBinNYC

Let me add a few fine points. 1. Make sure...

Let me add a few fine points.

1. Make sure your patch is the proper size. Too often people will choose to use a patch that's too big for the tube. The patch should not extend over the edges of the...
01-09-17, 10:02 PM
Replies: 16
Views: 3,207
Posted By SBinNYC

The wheel was moving too fast in the movie to...

The wheel was moving too fast in the movie to figure out what was happening by examining frame by frame. However, there's a blemish on the tire at the high spot @ 19.633 second mark (that's 1 frame...
12-23-16, 09:20 AM
Replies: 6
Views: 778
Posted By SBinNYC

I'm not a local. This might better explain what...

I'm not a local. This might better explain what they are trying to accomplish.

https://www.easterntrail.org/index.php/close-the-gap
12-04-16, 11:18 AM
Replies: 69
Views: 2,776
Posted By SBinNYC

One of the best kept secrets is that the...

One of the best kept secrets is that the introduction of the automobile did not increase travel speeds in cities. There were 19th century traffic studies in NYC. The horse and buggy was a bit faster....
12-04-16, 09:43 AM
Replies: 84
Views: 6,303
Posted By SBinNYC

The OP left out details regarding what precisely...

The OP left out details regarding what precisely was wrong with the rear derailleur. Also, lacking is the dropout type (vertical or horizontal). If a "field repair" were required/possible, such...
12-04-16, 09:07 AM
Replies: 69
Views: 2,776
Posted By SBinNYC

The article notes that average midtown speed is...

The article notes that average midtown speed is 8.2 mph is "vehicular hell." What should be the expected baseline speed for comparison purposes? Is such a baseline speed realistic?

The midtown...
11-27-16, 12:52 PM
Replies: 11
Views: 744
Posted By SBinNYC

5-speed freewheels usually took a 122mm hub...

5-speed freewheels usually took a 122mm hub (space between locknuts). The 7-speed freewheels took a 126mm spacing. If this is your case, you will have to add spacers to the rear axle (possibly...
Showing results 1 to 50 of 540
 


 
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