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Search: Posts Made By: PeteHski
Showing results 1 to 50 of 1000
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Forum: Road Cycling
05-04-24, 04:40 AM
Replies: 64
Views: 1,308
Posted By PeteHski

I was actually referring to the SwissSide...

I was actually referring to the SwissSide analysis, which included a detailed report which I can no longer find (probably because it referred to a competing brand’s lightweight wheel). They modelled...
Forum: Road Cycling
05-03-24, 11:40 AM
Replies: 64
Views: 1,308
Posted By PeteHski

I'll have to get my head around that. I think of...

I'll have to get my head around that. I think of it in terms of slope resistance. on a 0% slope, slope resistance is zero and therefore weight doesn't matter. As slope increases, weight matters...
Forum: Road Cycling
05-03-24, 11:25 AM
Replies: 32
Views: 826
Posted By PeteHski

What are you talking about? Who only factors in...

What are you talking about? Who only factors in bike weight alone?
Forum: Road Cycling
05-03-24, 11:21 AM
Replies: 64
Views: 1,308
Posted By PeteHski

This is pretty obvious, but even that becomes...

This is pretty obvious, but even that becomes questionable on lower gradients when aero effects are added in. We now see plenty of mid-deep aero wheels on big mountain stages. Not always the very...
Forum: Road Cycling
05-03-24, 11:01 AM
Replies: 64
Views: 1,308
Posted By PeteHski

If we set aside the aero and rolling resistance,...

If we set aside the aero and rolling resistance, then the effect of bike weight and wheel rotating inertia alone is very easy to simulate accurately for any course and power profile, which is what...
Forum: Road Cycling
05-03-24, 09:32 AM
Replies: 32
Views: 826
Posted By PeteHski

No “scientific” study is required to calculate...

No “scientific” study is required to calculate the effect of a change in bike weight on a slope for a given power output. Just plug your numbers into Bike Calculator or one of the more comprehensive...
Forum: Indoor & Stationary Cycling Forum
05-03-24, 08:31 AM
Replies: 20
Views: 422
Posted By PeteHski

The more you weigh, the slower you climb for a...

The more you weigh, the slower you climb for a given power output. But your calorie burn is related to power over time.
Forum: Indoor & Stationary Cycling Forum
05-03-24, 08:29 AM
Replies: 20
Views: 422
Posted By PeteHski

The speed indicated on your gym bike will just be...

The speed indicated on your gym bike will just be a generic estimate on a flat road for the power you are producing. Put your power and weight details into Bike Calculator as suggested and it will...
Forum: General Cycling Discussion
05-03-24, 05:57 AM
Replies: 56
Views: 1,113
Posted By PeteHski

When I’m riding my road bike I’m a roadie. When...

When I’m riding my road bike I’m a roadie. When I’m riding my mountain bike I’m a mountain biker. When I’m riding with my kids I’m a Dad biker.
Forum: General Cycling Discussion
05-03-24, 05:53 AM
Replies: 9
Views: 259
Posted By PeteHski

You might as well have just stopped right there....

You might as well have just stopped right there. It simply isn’t practical to house a complete derailleur drivetrain in a lightweight sealed casing.

Being fully exposed to the elements is...
Forum: General Cycling Discussion
05-03-24, 05:37 AM
Replies: 23
Views: 521
Posted By PeteHski

1. $4k road bike 2. $4k mountain bike ...

1. $4k road bike
2. $4k mountain bike

I’m pretty close to that with my Canyon Endurace and Canyon Neuron. They add up to $9k, but I could easily live with a build tier lower on both.
Forum: General Cycling Discussion
05-03-24, 05:26 AM
Replies: 63
Views: 1,522
Posted By PeteHski

I think most people would agree that a rate you...

I think most people would agree that a rate you can “maintain” is not measured in a few seconds or even a few minutes. I can sprint at 1000W for a few seconds but I would not describe that as a rate...
Forum: Road Cycling
05-03-24, 04:59 AM
Replies: 64
Views: 1,308
Posted By PeteHski

A heavier wheel does take more effort to...

A heavier wheel does take more effort to accelerate, but it’s a lot less than you are probably thinking. SwissSide did some modelling of crits, flat and mountain TTs and found that wheel weight was...
Forum: Road Cycling
05-03-24, 04:30 AM
Replies: 64
Views: 1,308
Posted By PeteHski

Sealant is actually optional with some tubeless...

Sealant is actually optional with some tubeless tyres. I ran my mountain bikes for years tubeless, without any sealant. Of course you then get flats just like you do with tubed tyres, but at least...
Forum: Road Cycling
05-03-24, 03:11 AM
Replies: 11
Views: 299
Posted By PeteHski

+1 good call.

+1 good call.
Forum: Road Cycling
05-03-24, 03:06 AM
Replies: 32
Views: 826
Posted By PeteHski

Yeah, weight would matter a lot more if you had...

Yeah, weight would matter a lot more if you had to carry your bike up hills rather than ride it. A 10% gradient is an approx 6 deg slope angle, so only about 10% of your bike weight (sin 6 deg =...
Forum: Road Cycling
05-02-24, 06:41 PM
Replies: 32
Views: 826
Posted By PeteHski

Gearing is definitely more important than weight...

Gearing is definitely more important than weight for climbing steep slopes. My mountain bike weighs around 12.5 kg, but I can climb steeper slopes on it than I can on my 7.8 kg road bike. Simply...
Forum: Road Cycling
05-02-24, 01:04 PM
Replies: 156
Views: 2,825
Posted By PeteHski

It was obvious that you thought the whole bike...

It was obvious that you thought the whole bike was $3K when you first posted this.
Forum: Road Cycling
05-02-24, 08:48 AM
Replies: 156
Views: 2,825
Posted By PeteHski

??

??
Forum: Road Cycling
05-02-24, 08:43 AM
Replies: 156
Views: 2,825
Posted By PeteHski

It’s obvious that you don’t have any clue about...

It’s obvious that you don’t have any clue about road bikes.
Forum: Road Cycling
05-02-24, 04:38 AM
Replies: 156
Views: 2,825
Posted By PeteHski

For me, the opportunity cost of even a £15k bike...

For me, the opportunity cost of even a £15k bike is pretty much irrelevant. It just means my kids would have £15k less inheritance and that would probably not be a bad thing anyway.

What actually...
Forum: General Cycling Discussion
05-02-24, 04:02 AM
Replies: 72
Views: 1,593
Posted By PeteHski

I don’t care about the secrecy of my bike rides,...

I don’t care about the secrecy of my bike rides, which are all logged on Strava anyway and my profile is public.
Forum: Road Cycling
05-01-24, 02:16 PM
Replies: 156
Views: 2,825
Posted By PeteHski

That’s a really odd way of asking what your bike...

That’s a really odd way of asking what your bike budget is 😂

For me it’s around £5k for a new bike. That seems to be about the sweet spot for a desirable build without going nuts on marginal...
Forum: Indoor & Stationary Cycling Forum
05-01-24, 10:52 AM
Replies: 20
Views: 422
Posted By PeteHski

It’s estimating your calories from power over...

It’s estimating your calories from power over time. Your weight doesn’t really matter for that. Weight only affects your virtual speed, which will be garbage anyway on a gym bike.
Forum: Indoor & Stationary Cycling Forum
05-01-24, 10:45 AM
Replies: 8
Views: 700
Posted By PeteHski

I tried it very briefly a couple of months ago,...

I tried it very briefly a couple of months ago, but wasn’t very impressed. It worked ok, but I found the graphics bland and the repeating advertising boards irritating. I went straight back to Zwift,...
Forum: Road Cycling
05-01-24, 09:31 AM
Replies: 37
Views: 1,354
Posted By PeteHski

Interesting. That would be a good subject for a...

Interesting. That would be a good subject for a new thread. Future drivetrains.
Forum: Road Cycling
05-01-24, 09:28 AM
Replies: 37
Views: 1,354
Posted By PeteHski

I got the impression that most people still...

I got the impression that most people still preferred the look of full length seatstays, but maybe that is starting to change. I think both can look good in the overall design.
Forum: Road Cycling
05-01-24, 08:50 AM
Replies: 37
Views: 1,354
Posted By PeteHski

I agree, but I do find them a bit of an...

I agree, but I do find them a bit of an inconvenience. Belt drives are efficient too, just need the gearing range etc. I'm surprised there are not more options. We had a couple of belt drive kids...
Forum: General Cycling Discussion
05-01-24, 08:41 AM
Replies: 225
Views: 9,598
Posted By PeteHski

Road, endurance, gravel, adventure, cross, tri,...

Road, endurance, gravel, adventure, cross, tri, XC, trail, enduro, DH, hybrid, fatbike, e-bike, SS. Literally thousands of choices and no I hadn't noticed that Kona have disappeared. Noted.
Forum: Road Cycling
05-01-24, 04:29 AM
Replies: 37
Views: 1,354
Posted By PeteHski

I have to say I’m surprised how long the...

I have to say I’m surprised how long the derailleur drivetrain has been dominant. It is at least now very well refined! I think the FD will be first to fall with 1x and internal hub/BB gears. But...
Forum: General Cycling Discussion
04-30-24, 11:28 AM
Replies: 63
Views: 1,522
Posted By PeteHski

The big picture is that we all have different...

The big picture is that we all have different riding interests and goals. Maybe you are the one who has lost track of this.
Forum: Road Cycling
04-30-24, 09:20 AM
Replies: 78
Views: 1,852
Posted By PeteHski

I agree, it wouldn’t be my choice for a...

I agree, it wouldn’t be my choice for a “climbing” bike. I’m surprised the SL is that much heavier.
Forum: Road Cycling
04-30-24, 08:48 AM
Replies: 78
Views: 1,852
Posted By PeteHski

I agree that 488g is a lot of extra carbon. But...

I agree that 488g is a lot of extra carbon. But it might not necessarily be a bad thing depending on how it is used on the SL. Maybe it's a better "beater" than the SLR, but I'm not claiming that....
Forum: Road Cycling
04-30-24, 05:19 AM
Replies: 69
Views: 1,378
Posted By PeteHski

I was fairly sceptical about the benefits of...

I was fairly sceptical about the benefits of electronic shifting right up until I eventually tried it for myself 2 years ago. It’s nice to get rid of cables and the ergonomics are a step forward for...
Forum: Road Cycling
04-30-24, 05:05 AM
Replies: 78
Views: 1,852
Posted By PeteHski

Same here. For example I weighed some DA pedals...

Same here. For example I weighed some DA pedals recently and they were as advertised. I’ve had tyres weigh above and below spec, so there is some variation there. The rolling resistance website...
Forum: Road Cycling
04-30-24, 04:54 AM
Replies: 78
Views: 1,852
Posted By PeteHski

That makes more sense now. I was finding it hard...

That makes more sense now. I was finding it hard to see an actual 1 lb difference in frame weight alone.
Forum: Road Cycling
04-30-24, 04:15 AM
Replies: 69
Views: 1,378
Posted By PeteHski

You can decide for yourself when you think a...

You can decide for yourself when you think a technology is “complete” and any further change is unnecessary. But that doesn’t mean you can decide for everyone else too. Your lecture is pointless.
Forum: Road Cycling
04-30-24, 03:53 AM
Replies: 78
Views: 1,852
Posted By PeteHski

So I take it you have finished routing internal...

So I take it you have finished routing internal hoses/cables on those 50 dentist bikes you mentioned a few weeks ago?
Forum: Road Cycling
04-29-24, 07:14 PM
Replies: 69
Views: 1,378
Posted By PeteHski

Yeah, I could have just said check the battery...

Yeah, I could have just said check the battery level before a big ride. It doesn’t have to be charged to 100%. For max battery longevity you are better off charging to around 80% anyway and not...
Forum: Road Cycling
04-29-24, 07:04 PM
Replies: 78
Views: 1,852
Posted By PeteHski

Which framesets are you comparing?

Which framesets are you comparing?
Forum: Road Cycling
04-29-24, 05:34 PM
Replies: 69
Views: 1,378
Posted By PeteHski

The main advantage in your case is that you don’t...

The main advantage in your case is that you don’t need to change anything. Unless you have a problem I would just ride it and charge the battery before a big ride.
Forum: Road Cycling
04-29-24, 05:30 PM
Replies: 78
Views: 1,852
Posted By PeteHski

The weight saving aspect of this cost is poor...

The weight saving aspect of this cost is poor value, but you generally get a higher quality build ie higher level groupset, nicer wheels etc. it’s not only about the weight.
Forum: Fifty Plus (50+)
04-29-24, 05:05 PM
Replies: 80
Views: 3,634
Posted By PeteHski

Strava does make a distinction between virtual...

Strava does make a distinction between virtual segments on a trainer app such as Zwift or Rouvy and real life road segments. They are not mixed together.
Forum: Indoor & Stationary Cycling Forum
04-29-24, 04:58 PM
Replies: 20
Views: 422
Posted By PeteHski

The power you produce (Watts) on the stationary...

The power you produce (Watts) on the stationary bike will transfer pretty well onto the road. Resistance on the road will vary with many factors including wind, road surface, gradient, tyres, aero,...
Forum: Road Cycling
04-29-24, 04:46 PM
Replies: 78
Views: 1,852
Posted By PeteHski

Bodyweight also naturally varies by 2-4 lbs over...

Bodyweight also naturally varies by 2-4 lbs over the course of a day.
Forum: Road Cycling
04-29-24, 02:24 PM
Replies: 69
Views: 1,378
Posted By PeteHski

Refinement of existing tech is just common sense...

Refinement of existing tech is just common sense and a basic engineering principle.
Forum: Fifty Plus (50+)
04-29-24, 02:06 PM
Replies: 80
Views: 3,634
Posted By PeteHski

375W gets you to around 11-12 mph on a 7.5%...

375W gets you to around 11-12 mph on a 7.5% slope. You need about 1000W to average 24 mph on that climb.
Forum: Road Cycling
04-29-24, 01:59 PM
Replies: 15
Views: 395
Posted By PeteHski

The BG insoles don’t compress much, so there is...

The BG insoles don’t compress much, so there is little to wear out. I wondered if the material would degrade over time, but it doesn’t show any signs. I’m no lightweight at 80 kg and routinely wear...
Forum: Road Cycling
04-29-24, 01:52 PM
Replies: 69
Views: 1,378
Posted By PeteHski

Nobody is forcing you to buy new stuff every...

Nobody is forcing you to buy new stuff every year. Drivetrain incremental upgrades are not even annual in any case. It’s more like every 3-5 years and there is always room for improvement.
...
Forum: Fifty Plus (50+)
04-29-24, 10:23 AM
Replies: 80
Views: 3,634
Posted By PeteHski

24 mph on a 7.5% slope at 180W is complete...

24 mph on a 7.5% slope at 180W is complete fantasy cycling. I suspect there was a bug in the program that generated those times. You see the same thing with Zwift Strava segments. Ridiculous speeds...
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