Adjusting the drag on a C2 Model B?

[Tim Donahey]

Is there a way to alter the drag rate on the model B's or can that only be done on C and newer?

[Tim Donahey]

bueller?

bueller?





bueller?

[Jay Cohen]

Tim;
Use to have a B. Is there a second gear that you can flip the chain to?
If not, not sure you can increase drag, but best bet is to check the C2 site, email or call them, or just buy a C, D or E.

[Jeff Dale]

Originally Posted by Tim Donahey

Is there a way to alter the drag rate on the model B's or can that only be done on C and newer?

Not much as far as an adjustment, but you can allow the air to escape through the side by opening the venting. I don't notice much difference myself. The other adjustment that was mentioned is the second cog or gear than the chain runs on. That changes the effort of the pull significantly.

good luck!
Jeff

[Matt DeMinico]

Doesn't opening the vent on the side change the drag? It does on the Model D they have here at work.

[Tim Donahey]

Originally Posted by Jeff Dale

Not much as far as an adjustment, but you can allow the air to escape through the side by opening the venting. I don't notice much difference myself. The other adjustment that was mentioned is the second cog or gear than the chain runs on. That changes the effort of the pull significantly.

good luck!
Jeff

Does that involve switching the cog it runs on to a different cog or tightening it somehow?

Originally Posted by Matt DeMinico

Doesn't opening the vent on the side change the drag? It does on the Model D they have here at work.

The vent on the side is the damper and I can barely notice much difference when having it opened or closed... I know on the model C and newer the drag rating can be accessed on the monitor and adjusted from there but that function isn't available on the PM1 monitor that I have.

[Jeff Dale]

Yeah, I don't notice much change either with the vents...
Just move the chain to the other cog and try it out, no tightening needed.

[Tim Donahey]

I found this on the British Concept 2 site:

Originally Posted by http://www.concept2.co.uk/rower/frequent_questions.php#modelbandc

If you are familiar with training on the Model B and have changed to a Model C or D, or are unsure of which resistance level to use at your next indoor race, outlined below is a guideline conversion table of resistance. You will notice that the Model C gears 1 and 2 add a range of lighter resistance levels previously unavailable on the Model B.

Model B and Model C Resistance Conversion Table

Model C Gearing.........Model B Gearing....................Load
........1/2...................... not available.................... very light
........3/4................. large cog, vents closed............. light......... (drag=98)
.........5................. large cog, vents half open............ -
........6/7................. large cog, vents open.............. medium...... (drag=160)
........8/9................ small cog, vents closed.............. heavy
........10................. small cog, vents half open...... very heavy
...not available........... small cog, vents open............... - ..........(drag=246)

The drag factors in parenthesis are not from the original table but are calculations from the forum... they are figured to approximatley correspond to the drag factor of the model c and up.

here's the discussion on the C2 forums (WFS): http://www.c2forum.com/viewtopic.php...64f6861ad2543e

This pretty much answers my question! Thanks for all the input!

[Tim Donahey]

So, since I didn't know about the large cog/small cog thing till today, I took a look under the hood of my new C2 and to my surprise the chain was linked around the small cog. I switched it over to the large cog and the resistance was immediatly cut. I need to fiddle around to see which setting gets me the best times, but I think I prefer it on a higher damper.