Hello everyone, I bought a Blackburn mag 3 trainer some time ago and couldn't find out just how much pressure should be applied to the rear wheel tire while it's on the trainer. Could anyone help be with that? Thanks
Thanks a lot for the info and for taking the time to reply!1. Inflate tire to near maximum recommended pressure.
2. Adjust the magnet to the level of maximum resistance you will be training at.
3. Adjust tire contact pressure to where it eliminates slippage between the tire and the driven roller.
4. Test for slippage by grasping the tire and giving it a hard and fast tug. Any slippage at the roller can be seen and/or felt. Higher contact pressure is not necessary and will only increase wear to the trainer bearings and the tire tread.
Blackburn has a couple mag trainer manuals online with similar procedures: https://admin.blackburndesign.com/b...4/10/Blackburn-Tech-Mag-1-Trainer-Manual1.pdf
Thanks for taking the time to reply, but I think "campybob" responded with what I need. Thanks anyway.Not exactly sure what you are referring to, but on my trainer I run tire pressure at normal road pressures and the roller just pushes against the tire. If yours is adjustable then not sure, but I assume it would be your body weight.
Everyone wants to be a comedian!!If after adjusting your tire pressure against the drum and you start to notice tiny bits of black tire rubber after using the trainer than the pressure against the tire is too high so back it off a wee bit at a time till you no longer get those rubber bits.
Everyone wants to be a comedian!!
Exactly where was I being funny?[/QUO
FROZE I apologize if I offended you with my saying "Everyone wants to be a comedian" it wasn't my intention. When I read your reply it struck me as being funny was all. If you weren't trying to be funny, but were serious, you must think I'm so stupid that I wouldn't know what to do if I "started to notice tiny bits of black tire rubber"!
I am sorry, but it did strike me as a bit funny and I thought he might have been just fooling around. I've asked for his help in the past(a lot) so I thought we were coolI think FROZE was just covering all the bases. Trust me...we get folks posting here that need detailed instructions on how to draw their next breath. No. I'm not joking.
I suppose it's possible to get a tire hot enough with enough roller pressure to squirm and deform the carcass and shred itself into small rubber particles...depending on the tread pattern and height and maybe the age/condition of the rubber compound (i.e. dry and age hardened). I've never seen it, but it could happen.
Could it happen at roller contact pressures set with common sense? Ya never know...common sense ain't so common these days.
Froze I am sorry~! You have always given me sound advice so I shouldn't have doubted your sincerity. Thank you for your advice. I still haven't bought that seat I had asked you about. I don't know if I told you that I had to send the first trainer back due to some malfunction, but they sent me another.I don't about the heat thing, all I know is that on other forums when a question comes up about trainers you'll get responses saying to use dedicated trainer tires so you don't get that bits of rubber, when the real problem is tension of the drum against the tire. I use nothing but retired tires off my road bikes and I never get shredding. By the way, if you use a tire that's been on the road you must clean the tire off real well and pick out any bits of debris in the tire, failure to do this could wear a groove in the drum.
No, I wasn't offended, just trying to figure out where the funny part was! LOL
Hi Froze, I bought it online from the Sun & Ski website. The second one was a couple of bucks cheaper because I got a discount for buying the first one from them, only ten bucks, but still ten buck is ten bucks. One of the problems was that I never rode on a trainer before so I didn't know what type of sounds they make normally. The second one is a little quieter.With lower end trainers you're bound to run into one that will malfunction out of the box, but the next one you get should be fine for a very long time because there is very little to go wrong with those things.. If I recall correctly you bought it from Performance or Nashbar, either one has a lifetime customer satisfaction with it not to mention the factory warranty so you'll be fine with it.
I suppose it's possible to get a tire hot enough with enough roller pressure to squirm and deform the carcass and shred itself into small rubber particles...depending on the tread pattern and height and maybe the age/condition of the rubber compound (i.e. dry and age hardened). I've never seen it, but it could happen.
Could it happen at roller contact pressures set with common sense? Ya never know...common sense ain't so common these days.
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