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Search: Posts Made By: gregf83
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09-06-21, 09:48 PM
Replies: 8
Views: 440
Posted By gregf83

They don't really have to be 'smart' to do that....

They don't really have to be 'smart' to do that. All lithium chargers will start with a constant current until the battery voltage reaches about 4.2V/cell. After that the voltage will be held...
Forum: Road Cycling
09-06-21, 07:14 PM
Replies: 83
Views: 2,728
Posted By gregf83

https://www.slowtwitch.com/Bike_Fit/Choosing_a_Tri...

https://www.slowtwitch.com/Bike_Fit/Choosing_a_Tri_Bike_via_Stack_and_Reach/Stack_Reach_Primer_Chapter_One_95.html
09-05-21, 11:15 AM
Replies: 255
Views: 6,016
Posted By gregf83

I wouldn't assume the extra year of warranty...

I wouldn't assume the extra year of warranty implies higher durability. They're both pretty reliable and the additional cost to Shimano of an extra year of warranty is likely under 1% of the sales...
09-03-21, 10:01 PM
Replies: 13
Views: 599
Posted By gregf83

Thatís an excellent idea. Iím half deaf in one...

Thatís an excellent idea. Iím half deaf in one ear but can still hear the beeps on the 530 90% of the time. Sometimes into the wind or downhill on gravel itís hard to hear. Iím assuming you can...
Forum: Road Cycling
09-03-21, 08:34 AM
Replies: 83
Views: 2,728
Posted By gregf83

I’ve never test ridden a bike. Had a custom bike...

I’ve never test ridden a bike. Had a custom bike built after being fitted on a test jig and at least 5 other bikes online or used. Once you have a bike that fits comfortably you should be able to...
09-01-21, 09:15 PM
Replies: 109
Views: 3,611
Posted By gregf83

Fortunately, I gave mine to my son so itís still...

Fortunately, I gave mine to my son so itís still in the family. Iíll miss that sweet sound.
09-01-21, 08:07 PM
Replies: 109
Views: 3,611
Posted By gregf83

I had this 964 for 17 years and traded it for a...

I had this 964 for 17 years and traded it for a Tesla this week. It's spent most of the last few years in my garage so it was time to let someone else enjoy it.
...
Forum: Road Cycling
08-29-21, 08:48 PM
Replies: 132
Views: 8,389
Posted By gregf83

They bring up a virtual partner when you start a...

They bring up a virtual partner when you start a favourite segment. It would be nice if theyíd activate the hill app whenever you start an uphill segment that meets the criteria for a climb. Thatís...
Forum: Road Cycling
08-29-21, 07:16 AM
Replies: 132
Views: 8,389
Posted By gregf83

Iíve seen the climb app pop up when Iím following...

Iíve seen the climb app pop up when Iím following a route. Is there a way to activate it when just riding?
08-21-21, 05:42 AM
Replies: 20
Views: 906
Posted By gregf83

I just looked on google streetview for that town...

I just looked on google streetview for that town and it seems they have a lot of roads narrower than what Iím used to.
...
08-20-21, 11:35 PM
Replies: 20
Views: 906
Posted By gregf83

The mV lanes look the same size as other roads in...

The mV lanes look the same size as other roads in the area. Theyíre used to driving on narrower lanes.
08-20-21, 11:20 PM
Replies: 61
Views: 2,052
Posted By gregf83

I find riding fast enjoyable. Whether it’s riding...

I find riding fast enjoyable. Whether it’s riding hard with a tailwind or riding in a tight pace line with other riders. Best of all is a small group of 4 to 6 riders all on the rivet.
08-15-21, 09:08 AM
Replies: 22
Views: 1,453
Posted By gregf83

If you're in SF you've got no shortage of hills...

If you're in SF you've got no shortage of hills to go all out on!
08-15-21, 08:38 AM
Replies: 22
Views: 1,453
Posted By gregf83

There isn’t much ‘pleasurable’ about pushing up...

There isn’t much ‘pleasurable’ about pushing up the curve to the left of 5min. All those efforts require suffering. Finding a fast group to ride with is probably the easiest way to raise the curve.
...
08-13-21, 08:26 AM
Replies: 5
Views: 337
Posted By gregf83

Impossible to tell from those numbers as they're...

Impossible to tell from those numbers as they're not calibrated or accurate. Running a 5k in that time would burn just over 300 Cals, 4k about 240. If you're a runner you could gauge your effort by...
08-12-21, 10:08 PM
Replies: 20
Views: 660
Posted By gregf83

Forget about cleaning. Your caliper is shot. I...

Forget about cleaning. Your caliper is shot. I just went through this same issue. Front brake would squeal, I'd take everything apart, sand rotors replace rotors, replace pads. Squeal would go away...
08-11-21, 01:09 PM
Replies: 390
Views: 8,682
Posted By gregf83

The source is in my earlier post, just click on...

The source is in my earlier post, just click on the name of the paper. The figures in the paper are for Gross Efficiency (GE) and are useful for comparing trained and untrained athletes. Using gross...
08-11-21, 10:39 AM
Replies: 390
Views: 8,682
Posted By gregf83

Turns out my memory wasn't correct, Differences...

Turns out my memory wasn't correct, Differences in efficiency between trained and recreational cyclists (https://pubmed.ncbi.nlm.nih.gov/18059575/) found experienced cyclists were more efficient....
08-11-21, 05:57 AM
Replies: 390
Views: 8,682
Posted By gregf83

Studies I recall are most cyclists fall in the...

Studies I recall are most cyclists fall in the 18-24% range and itís not well correlated to fitness.
08-10-21, 11:36 PM
Replies: 24
Views: 863
Posted By gregf83

There’s little value in training to ride at a...

There’s little value in training to ride at a particular cadence so I don’t see how a metronome would be helpful. If you want to increase your cadence you could either get an inexpensive cadence...
08-08-21, 11:56 PM
Replies: 390
Views: 8,682
Posted By gregf83

Depends what youíre doing. Running or riding up...

Depends what youíre doing. Running or riding up steep hills burn a fixed number of calories per distance independent of speed. Cycling on the flat or normal rolling terrain and speed makes a...
08-08-21, 10:48 AM
Replies: 5
Views: 455
Posted By gregf83

Depends entirely on how fast you're riding those...

Depends entirely on how fast you're riding those 24 miles. Once the battery voltage gets close to 3V/cell the internal resistance goes up and the voltage will drop quickly if you continue to draw the...
Forum: Road Cycling
08-08-21, 10:41 AM
Replies: 39
Views: 1,592
Posted By gregf83

I would definitely put the 34 on. Made a trip to...

I would definitely put the 34 on. Made a trip to Girona a couple years ago and didn't think we'd have steep hills so only had a 25 on the back. Ended up climbing some reasonably long 12% hills. For...
08-08-21, 08:47 AM
Replies: 26
Views: 962
Posted By gregf83

I don’t recall ever having sore calves from...

I don’t recall ever having sore calves from riding. If I start running I often have a problem where I’ll pop something in my calf and have to take a couple weeks off to heal. During this time I can...
Forum: Road Cycling
08-04-21, 09:42 PM
Replies: 227
Views: 8,917
Posted By gregf83

You were expecting more or less?

You were expecting more or less?
Forum: Road Cycling
08-03-21, 04:23 PM
Replies: 227
Views: 8,917
Posted By gregf83

Thanks! Interesting study by Brandon Kuhn. Seems...

Thanks! Interesting study by Brandon Kuhn. Seems unfairly fun to be able to study that for a Master's thesis. My personal results were 752 vs 594W up a short hill clipless and flats respectively. On...
Forum: Road Cycling
08-03-21, 11:55 AM
Replies: 227
Views: 8,917
Posted By gregf83

I can feel it when sprinting up a steep hill. I...

I can feel it when sprinting up a steep hill. I pull up. I agree, and have confirmed for myself, that for steady state riding clips make no difference to power or efficiency. I haven't seen any...
08-03-21, 08:46 AM
Replies: 150
Views: 13,234
Posted By gregf83

The powermeter doesn't measure power wasted by...

The powermeter doesn't measure power wasted by your upper body. It only measures power to the pedals. If you put more power to the pedals and don't change your position you'll go faster. If you lean...
Forum: Road Cycling
08-03-21, 08:15 AM
Replies: 227
Views: 8,917
Posted By gregf83

For many, sprinting is not an edge case and you...

For many, sprinting is not an edge case and you can put out more power when sprinting clipped in. I've done the comparison myself on my normal route and there are numerous points in the ride where...
08-02-21, 09:12 PM
Replies: 390
Views: 8,682
Posted By gregf83

It is but Intensity Factor != Intensity. The...

It is but Intensity Factor != Intensity. The original comment was someone referencing a high intensity effort of 87% of FTP. That wouldn't normally be interpreted as NP. If I do 30 Sec high intensity...
08-02-21, 08:14 PM
Replies: 390
Views: 8,682
Posted By gregf83

Intensity is not a well defined term either and...

Intensity is not a well defined term either and is not the same as NP. Best to just use NP if that's what you're talking about.
Forum: Road Cycling
08-02-21, 08:12 PM
Replies: 227
Views: 8,917
Posted By gregf83

Please share a study showing the effects of...

Please share a study showing the effects of clipless pedals while sprinting. And then explain why track riders are both clipped and strapped in.
08-02-21, 02:15 PM
Replies: 297
Views: 7,140
Posted By gregf83

I see it fairly often around here, generally...

I see it fairly often around here, generally older, inexperienced women.
08-02-21, 11:03 AM
Replies: 390
Views: 8,682
Posted By gregf83

Your original comment said you averaged 87% of...

Your original comment said you averaged 87% of FTP for over 3 hrs. That's a very tough workout and likely an indication that your FTP was overstated. The data you posted confirmed that your average...
08-01-21, 10:21 PM
Replies: 390
Views: 8,682
Posted By gregf83

The amount of time descending mountain roads that...

The amount of time descending mountain roads that minimizes an individual's risk is 0 hours/wk. Most cyclists accept some level of risk to do the things we enjoy.
Forum: Road Cycling
07-22-21, 07:51 AM
Replies: 166
Views: 7,086
Posted By gregf83

Iíd recommend Joshís method too if I was selling...

Iíd recommend Joshís method too if I was selling wax :)
Forum: Road Cycling
07-21-21, 09:31 PM
Replies: 166
Views: 7,086
Posted By gregf83

I've also had good success with Rock N Roll gold...

I've also had good success with Rock N Roll gold which is a very thin lube that you wipe off completely. I don't like a bunch of extra wax on the chain that ends up flaking off. My process is fast...
Forum: Road Cycling
07-21-21, 09:27 PM
Replies: 166
Views: 7,086
Posted By gregf83

Wear a heavy glove and wipe it off with a heavy...

Wear a heavy glove and wipe it off with a heavy paper shop towel as you pull it out. As you've recognized you don't need a ton of was on the outside of the chain.
Forum: Road Cycling
07-21-21, 09:23 PM
Replies: 166
Views: 7,086
Posted By gregf83

I heat the wax in a crock pot on high. I've never...

I heat the wax in a crock pot on high. I've never measured the temperature but it seems to heat the chain up quickly. I have a fair amount of wax in a heavy pot so don't think one chain lowers the...
Forum: Road Cycling
07-21-21, 05:04 PM
Replies: 166
Views: 7,086
Posted By gregf83

I grab the link pins with a pair of needle nose...

I grab the link pins with a pair of needle nose pliers and swish them in the liquid was for 10 seconds or so. Both the pliers and link quickly get above the melting point temp of was.
Forum: Road Cycling
07-21-21, 05:03 PM
Replies: 166
Views: 7,086
Posted By gregf83

It doesn't stay cold for long when it goes in the...

It doesn't stay cold for long when it goes in the crock pot. After 10 seconds the chain is up to a high enough temperature that the wax remains liquid on the chain when it's removed. I think that's...
Forum: Road Cycling
07-21-21, 06:30 AM
Replies: 166
Views: 7,086
Posted By gregf83

That doesnít work so well when youíre doing...

That doesnít work so well when youíre doing multiple chains. With hot liquid wax it gets into all the pins very quickly. Any moisture on the chain quickly boils off and any residual oil dissolves in...
Forum: Road Cycling
07-21-21, 06:08 AM
Replies: 166
Views: 7,086
Posted By gregf83

Why are you leaving the chain in the wax for two...

Why are you leaving the chain in the wax for two hours? I have 3 chains for each of two bikes so wax 5 or 6 chains at a time. I hook the chain with a bent coat hanger, immerse it in the wax while...
07-19-21, 06:40 AM
Replies: 37
Views: 925
Posted By gregf83

It doesn’t have to be complicated and you don’t...

It doesn’t have to be complicated and you don’t need an ultrasonic cleaner to remove lube from a chain. Put some mineral spirits in a can, add the chain and swish around for a minute. Pull the chain,...
Forum: Road Cycling
07-17-21, 11:28 PM
Replies: 65
Views: 1,709
Posted By gregf83

No need to be cranky. What did you mean by far...

No need to be cranky. What did you mean by far more effective?
Forum: Road Cycling
07-17-21, 06:43 AM
Replies: 65
Views: 1,709
Posted By gregf83

Using both brakes is more Ďeffectiveí at keeping...

Using both brakes is more Ďeffectiveí at keeping the front and rear brake wear even. For hard braking or emergency stops though using 100% front is correct. Maybe if you can get enough of your weight...
Forum: Road Cycling
07-14-21, 08:21 PM
Replies: 113
Views: 4,730
Posted By gregf83

Presumably there are reasons most of the teams...

Presumably there are reasons most of the teams either aren't using through axles that don't require a wrench, or they're not as fast at you at swapping wheels. I've seen an awful lot of slow wheel...
07-09-21, 06:53 PM
Replies: 38
Views: 2,152
Posted By gregf83

No doubt it would have made the sprint stages...

No doubt it would have made the sprint stages more interesting but I think Cav would probably win about 50% of the sprints against Ewan. Ewan wasn't competitive in Baloise Belgium stage 5. DQS still...
Forum: Road Cycling
07-02-21, 07:47 PM
Replies: 132
Views: 8,389
Posted By gregf83

Batery life on the 530 is much better than the...

Batery life on the 530 is much better than the 520. There's a small icon on the main page and a larger icon and % on the status page. I had to look as I've not paid any attention since the battery...
07-02-21, 03:08 PM
Replies: 49
Views: 2,459
Posted By gregf83

Cav has the best team supporting him with the...

Cav has the best team supporting him with the number one leadout man Morkov and for some inexplicable reason has been sprinting against Alpecin's #2 sprinter. I think his power is down considerably...
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