Weight Weenies
* FAQ    * Search    * Trending Topics
* Login   * Register
HOME Listings Blog NEW Galleries NEW FAQ Contact About Impressum
It is currently Sat Nov 25, 2017 12:27 pm

All times are UTC+01:00





Post new topic  Reply to topic  [ 3 posts ] 
Author Message
PostPosted: Thu Sep 28, 2017 10:55 am 
Offline

Joined: Mon Jun 02, 2008 7:10 pm
Posts: 61
I'm in the process of buying an indoor trainer and will most likely be using it with Zwift. The main difference between a € 250 and a € 500 trainer seems to be the max wattage/ gradient simulation. I've read many different topics on this, with many people saying the max gradient is irrelevant, you can just shift to a bigger gear in order to simulate a higher gradient. I honestly still can't get my mind around this (I fully accept the fact that my mind is the limiting factor here).

I imagine the gradient as kind of a brake, which changes the resistance. Therefore I would think that a trainer simulating 10% will feel different than a trainer that can simulate 6% gradient, on which you just shift to a higher gear --> because of less momentum in de flywheel in the 10% than in the 6% trainer.

Please help me out here! (thanks in advance)


Top
   
Posted: Thu Sep 28, 2017 10:55 am 


Top
   
 
PostPosted: Thu Sep 28, 2017 2:01 pm 
Offline

Joined: Mon Mar 21, 2016 8:16 pm
Posts: 30
Look at it this way, the max gradient is a relation to the max power that can be applied with a low RPM. I assume you are talking about smart trainers? Shifting to a bigger gear to simulate gradient is more for the fluid trainers in which the faster the rear wheel spins, the more resistance the fluid unit generates.
Consider that in the real world, you can climb a hill at 300 watts and 50 rpm. You are in your small front ring and biggest rear cog. On a fluid trainer to do 300 watts at 50 rpm, you may be in your big ring up front and near smallest cog in the back. It's not really the same thing. When you consider a gradient with a smart trainer, it will estimate the power needed to advance the gradient (slope) independent of the choice of gear. So you could use either the small ring or the big ring at any cadence, and the power required would be the same.


Top
   
PostPosted: Thu Sep 28, 2017 2:45 pm 
Offline

Joined: Mon Jun 02, 2008 7:10 pm
Posts: 61
thnx mvnsnd, but isn't the momentum of the flywheel different. I mean if I stop pedalling in a very high gear, the momentum will keep the flywheel turning. with a smart trainer that can simulate a higher gradient, the flywheel will stop more quickly, thus it will feel 'different'?


Top
   
Display posts from previous:  Sort by  
Post new topic  Reply to topic  [ 3 posts ] 

   Similar Topics   Author   Replies   Views   Last post 
There are no new unread posts for this topic. Sinuisitis and Indoor Trainer?

in Training

3Pio

10

716

Tue Oct 31, 2017 2:11 pm

topflightpro View the latest post

There are no new unread posts for this topic. Umm.. odd request. Looking for a large poster for indoor trainer room. Alps, bike race on cobbles. Realistic looking.

[ Go to page: 1 2 ]

in Cycle Chat

Shrike

16

1789

Fri Jun 02, 2017 9:08 am

kaguri View the latest post

There are no new unread posts for this topic. Indoor vs. Outdoor TSS

in Training

JackRussellRacing

8

1170

Tue Jul 18, 2017 5:27 am

Kurets View the latest post

There are no new unread posts for this topic. Help needed: Looking ahead to my winter indoor training.

[ Go to page: 1 2 3 4 ]

in Training

Ahillock

49

3122

Wed Oct 25, 2017 9:32 am

3Pio View the latest post

There are no new unread posts for this topic. Water resistant headphones for indoor training

[ Go to page: 1 2 ]

in Training

Stolichnaya

18

3507

Wed Jan 25, 2017 1:08 pm

Tomstr View the latest post


All times are UTC+01:00


Who is online

Users browsing this forum: No registered users and 4 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited