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AAAC 76C

Large Member
Location
LIVING THE DREAM
So I did a re-run of CG3 tonight, and I'm a bit confused now, so I'm looking for some views or help on a few questions.

I rode CG3 last Monday and was pretty pissed off with my time, which became even greater last night when I saw the times after the Thursday Chain Gang ride.

I rode 39.12, meaning I was around 6 to 10 minutes behind the rest of you guys. I ride around 150 to 200 miles normally each week on my road bike, in groups which include a fair number of guys who still take part in veterans races, so I was finding hard to understand why I was dropping so far behind.

Rather than whinge about it, I thought I'd make a number of changes, some based on advice I'd read on this forum, and others that I workout myself.

Tonight I rode CG3 again and improved my time by around 3.5 minutes, to 35.44 and felt at the end that I could have probably gone faster.

However, when I check my time on the league page, my second ride is there, but it's got 3 red crosses in the data against Classification Attempt, Time Improved and Coherent Weight, so I'm assuming this will be disallowed unless a Mod approves it?

Here's what I did, and any comments or advice are welcome.

Set-up before the ride

I changed two things in the physical set-up and then set the ride up so that I wasn't riding solo.

1. I decreased my weight on the website from 82 kg to 80.3 kg. This is actually correct, as I've lost 1.7 kg since I first registered. I didn't expect this to help me downhill but assumed I may get some benefit uphill

2. I changed the bike on the turbo from and old Scott CR1 that I don't ride on the roads any more, and put one of my road bikes, a Ridley Excalibur on the turbo. The Scott has a slightly noisy bottom bracket and one of the jockey wheels had been a little stiff. I didn't think this had made much effect, but I thought by putting the Ridley on the turbo I could much better compare to the feel of riding on the road.

When I changed the bikes I moved the rear wheel further to the left on the turbo wheel. The Scott wasn't really central on the wheel, so by winding the left hand clamp out a bit, I managed to get the Ridley to sit much more centrally. Didn't know if this would make any difference but thought it was worth doing.

I also followed advice to challenge somebody, @BILL S in this case, which also gave me @AAAC 76C 's ghost and @JacobSkovsgaard and took @AAAC 76C 's advice and added 4 lapdog bots. I threw in 2 diesels as well.

I also rode this time in 3D, rather than video, although I can't see nay reason why that would make any difference.

During the ride

The website said I had 9 other riders, and with 6 bots and 3 ghosts that was correct.

When I loaded up BSim, all my ghosts were there and the bots seemed to be there as well.

Followed advice to power off the start line, which seemed to help and then settled into the descent. Descended all the way with 2 lapdogs (both were Terry) while the tow other lapdogs stayed permanently around 1 m 20 s behind me. According to the places of riders in the top left hand corner, Jacob was behind the lapdogs, which made me think I was caning it down the descent, even though my speed didn't seem to confirm that.

I could see AAC76 or BILLS at all, so I summed they were somehow behind me. More of this later.

I tried to slipstream the lapdogs, with mixed success. Sometimes I succeeded, other times I pulled ahead of them and then eased a little to let them back in front, and a couple of times they flew off the front, so I decided not to chase them and conserve energy for the 5.5 km climb at the end.

Generally, I felt much stronger on the descent and closer to what I'd expect if I was out on my road bike. So, by this time I'm confused. Is it me riding more strongly, is the bike and its positioning making a big difference, or are the lapdogs helping me more than I realise?

I certainly hit higher watts than I have before and I powered over the small climbs on the descent far more easily than the earlier ride.

At the start of the final climb, I settled into a much stronger rhythm. On the first ride, I was pretty much constantly at 19km/h, but this time I was riding a bigger gear and riding at a steady 25 km/h and wondering if I should push harder. I decided to keep it steady, but with 2 km to go I decided to up the pace a little and in the last km I was riding at 28 - 29 km/h and wondering if I should have attacked earlier.

At the end, I was far less tired than after the first attempt. I checked Strava, and I'd knocked almost 3 minutes off on the ascent.

So what am I confused about?

1. Obviously, the first question is why has my second attempt got 3 red crosses. Does this mean its disallowed? If so, why, or is is just awaiting approval by a league mod?

2. According to the live data, I was in first place and ahead of Jacob. I couldn't see BillS or AAAC at all.......... but this was bollocks. At the end, the results on the website showed they had all finished ahead of me, which is correct according to their times, but why didn't I see them on BSim?

3. Finally, a much harder one for anyone here, but maybe others will have changed their bikes and had similar experiences. The Ridley seemed to help me enormously. Both on the descent, where I pedalled well within myself and still got down 20 seconds faster, with 1.7kgs less weight. On the ascent, I felt much stronger and rode probably 50/25 most of the way up on the Ridley, where I'd ridden 50/28 on the first attempt on the Scott. As I said, the rear wheel was also a bit more centra on the turbo roller, so I don't know if this helped as well.

Any views, advice or opinions are welcome.

Apologies for the long thread, and as I said at the start the whole thing kicked off because I was so pissed off at the time of the first run. But what I'm trying to do is make sure I've got the bike set-up right and that I'm adapting to riding on BSim and getting as close as I can to what I'd expect to feel when riding on the road.

I've not done CG 3 yet which is probably why you didn't see me.

Another thing that seems to make a bigger difference going downhill, higher wheel speeds therefore more tyre to turbo drag, is your weight being further forward. The difference in bike geometry will do this if it puts your saddle further forward.
Also before starting your session pick up the front wheel and lower it without any guidance. If it does not drop back into the wheel block move the block so it does.
Non efficient drive gear will eat energy if you are running a high cadence so that BB and Jockey wheel will add up.
Don't bother with desiels, they are pants. Stick to Lapdogs, they are set up to help you.
When descending in draft you will accelerate past your Lapdogs and he will pass you but don't chase them as they will, eventually, come back to you.
 

AAAC 76C

Large Member
Location
LIVING THE DREAM
Don't get hung up on the % increase £12.99/month is still a bargain for all the features and overall reliability it demonstrates. It's a couple of drinks or maccy D for two, nothing really. I'm more than happy to spend £12.99 on Zwift than casual one off purchases

That's 3 bottles of Tesco wine!
 

LBHIFI

Veteran
Location
Liseleje
Tyre and pressure were the same.

I swapped the wheel of the Scott and put it on the Ridley. It's got a Vitorria trainer tyre on and it was pumped to 140 psi.

Thanks for approving the ride. I can re-run CG1 tomorrow morning now!
Ahh yes, tires & Bkool. The reason my stock of tires has grown to an abnormal size.
It includes 3 hometrainer tires, the Vittoria being one of them, and none of them could match the performance I got from my real world race tire: Continental GP4000S II, pumped to max (or higher). It's not the cheapest solution though.
 

Del C

Veteran
Location
Horley
Ahh yes, tires & Bkool. The reason my stock of tires has grown to an abnormal size.
It includes 3 hometrainer tires, the Vittoria being one of them, and none of them could match the performance I got from my real world race tire: Continental GP4000S II, pumped to max (or higher). It's not the cheapest solution though.

I was riding Conti 4 seasons on the turbo and switched to the Vittoria turbo tyres. I was riding on used Contis that I had taken off the road bike but still had some life in them on the turbo. As they were shredding quite badly when I inflated them harder, I thought I'd try the trainer tyres instead.

I think I was probably riding faster before the change.

Maybe I'll go back to the Contis?
 

Whorty

Gets free watts from the Atom ;)
Location
Wiltshire
That's odd.

I'm guessing you must have ridden this route at some other time, because you were definitely offered as a ghost and you're in my head-head-results when I completed the stage.

You'll be pleased to know that you came first! ^_^
His ghost was chosen Thursday too but I didn't see him once on the race. I went over the finish line first, only to see in the standings that he and Jacob had actually beaten me! The ghosts are all to cock at the moment.
 

Whorty

Gets free watts from the Atom ;)
Location
Wiltshire
I was riding Conti 4 seasons on the turbo and switched to the Vittoria turbo tyres. I was riding on used Contis that I had taken off the road bike but still had some life in them on the turbo. As they were shredding quite badly when I inflated them harder, I thought I'd try the trainer tyres instead.

I think I was probably riding faster before the change.

Maybe I'll go back to the Contis?
I used to use a trainer tyre but switched for conti all season and they are definitely faster.
 

berty bassett

Legendary Member
Location
I'boro
2/3 nights on 3 bottles
That Tesco stuff goes down too easy to last that long
As for tyres , when I changed from the training tyre to the continental gp 4000sii there was a massive leap forward it was only 23mm wide I don’t know if 25 would be quicker or not
Changing weight sets alarms off even if you put it up
Aaac has said what tyre he uses on here somewhere and although us mortals can only dream of his speed he did say it made a big difference to him
Don’t know if you have a fan or not but that makes a hell of a difference as well
Good luck
 

<Tommy>

Illegitimi non carborundum
Location
Camden, London
Conti gp’s are the best tyre I used I think. Although sometimes it feels like you have more grip than others. I saw them for £30 online somewhere the other day which is pretty good isn’t it? I mean, not cheap, but not bad for conti gp.
 

LBHIFI

Veteran
Location
Liseleje
One of our club younger members went for solo ride, yesterday
43.2mi
  • 1:59:33
  • 1,089ft
208W
  • 1,495kJ


Avg Max
Speed
21.7mi/h 39.6mi/h
Heart Rate 168bpm 207bpm :eek:

Makes no wonder I feel battered on a club run :ohmy:
Either his power meter was not calibrated or he was riding a TT bike. With 225 watt I avg. 18 mph on my commuter with all the winter equipment.
 

AAAC 76C

Large Member
Location
LIVING THE DREAM
I was riding Conti 4 seasons on the turbo and switched to the Vittoria turbo tyres. I was riding on used Contis that I had taken off the road bike but still had some life in them on the turbo. As they were shredding quite badly when I inflated them harder, I thought I'd try the trainer tyres instead.

I think I was probably riding faster before the change.

Maybe I'll go back to the Contis?

Fastest trainer tyre I ever used, and also the cheapest were the ones they sell/sold in Halfords for £10.
They are a lot lighter than most trainer tyres and I have tried nearly all of them except the Taxc. I found the Vittoria to be the slowest.
Buying a good tyre with a high recommended pressure is the way to go and unlike modern findings on the road small is good, i.e. 23mm.
The centre tread is best to be parallel and having a directional tread for cornering is good to.
A light tyre is good to all be it it gives you a little less inertia (flywheel effect) but the weight makes up for the fact that a rotating mass is constantly accelerating (as velocity has vector as well as amplitude) so rotating the mass required energy to accelerate it.
A light wheel tyre combination also accelerates better and therefore give you an advantage when speeding up. However this advantage is countered to a degree by the loss of momentum.
 
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