Jump to content

Nickzta

Members
  • Posts

    168
  • Joined

  • Last visited

Posts posted by Nickzta

  1. Glad you are okay... Well done on taking it to them. You don't ever know what you are going to do in situations like that; until you are actually in the situation...

     

    A frikken gynormous bastard tried to mugg me a year back and I just leaned into his ear and quietly told him what I was going to do to him. (not that I could have done much really, he was huge)

    But, afterwards I couldn't really believe I did that...

     

    Just glad that you are ok.

  2. I really don't think you get better value for money than a Jura... even though they are a bit over your budget.

     

    Ps: it may save you a bit of moola to look at the Prestige Foamer instead on trying to buy an integrated foamer. I picked up a Prestige foamer from Checkers at R250. and I am 110% happy with it... in fact it's been my favourite new toy for the last 4 months. (it's a spindle foamer, not a pressure steam foamer)

     

    Happy shopping!

  3. Thank you guys!

     

    Really appreciate the input! Gators it will be. I missed the R350 price at the expo. I know cos I had a good chat with the guy and he wouldn't drop. I can only that think they started running low on stock and put the price back up to R480. went to 2 LBS's yesterday and neither had stock.

     

    Will check in with Solomons next week and ask nicely for a good price. Will also see if the guys at Westdene have a 15% off deal again.

     

    Thanks, Thanks!

  4. Hi,

     

    I am about to be making yet another cycling comeback.

     

    When I left off (2yrs back) I had been having some problems with my tyres. Basically, if I rode over a small stone at 25km/hr or faster - I'd get a leak.

     

    I looked at Gatorskins at the 94.7 expo and I'm not sure I can afford 2 at R480 each. The salesman said that Bontrager had a strong tyre at R250 each. Are they any good?

     

    Any other suggestions?

     

    is there perhaps a link to a similar topic?

     

    thanks for the help

  5. I battle to get my 4 year old to wear her helmet !! So I show her that everybody else is wearing one until this Darwin award winner shows up !! So NO , don't leave him ask him to leave the park !

     

    This is the prize right here!

     

    It's up to us as cyclists to take the responsibility to set the standard. No helmet no ride.

  6. I see that this has been another famously heated thread. But I think you raise a good point... When I bought my Polar, Discovery wasn't logging points on it. A number of years later they decided it was a good idea.

     

    The question I have, is this: Does anybody know any Vitality decision makers who could review Garmin and put Garmin points tracking into action?

  7. Okay, let look at this Kyalami issue from a different angle. The track was built for racing cars that is their core business. Opening it to cyclist for two hours does not in my view incur a significant cost especially considering that there is nothing else that is provided other than a guy collecting the cash on entry.

    I just feel that the price increase is not justified purely this being an extra income at relatively very little or no cost. They don't clean the tyre debris before cyclist get on the track, there is no water being handed or any form of support so what the heck justifies the increase? This is a case of greed, pure greed. The track is not losing anything by giving two hours access to cyclist because the business model is based on racing cars. Anything else is pure EXTRA!!!!!!

     

    That is seemingly a sound argument, IF this is true... Everybody is assuming that it is a viable concern. I am suggesting that it is going the way of decay and that there actually isn't enough money to sustain the track in the present term and form.

  8. Hey friend,

     

    I'm all for bumping, switching and changing your training program. There is always benefit in mixing it up...

     

    But I think the problem here, is your head, not your legs... Your mind seems to be out of control in the opening stages, it's not letting you slow down. The adrenalin flows and you get "fixated" It's not an uncommon issue

    on 2 wheels, but you seem to have it bad

     

    Maybe see if you can find a "head" coach not a "leg" coach... yes?

     

    (If you know anybody who coaches or is an old hand in motor-racing, especially motorbike racing, have 2 or three chats about fixation and visualisation. It might be the best help for you. These guys love chatting, it should only cost you the price of a round of beers)

  9. I'm struggling with this post - I'm not sure where I stand. Mostly because I see things from both sides...

     

    As a paying cyclists we are consumers, in a capitalistic society. Our JOB is to make sure we get a fair bang for our Buck. So yes we should make a noise when the price increase is huge (and well done on getting it back down to R15)

     

    But the flip side, is that these venues cost fortunes! Freeeeaaakin' Fortunes to make and fortunes to maintain. I am sayingthat we've seen so many cycling tracks and venues come and go over the years and the bottom line is that if the places can't make enough dosh to be viable concerns, we will loose them...

  10. The assumption seems to be that all bikes are created equal and that all thus have the same bearings. The other assumption seems to be that it is only bearings under threat. There is more to it.

     

    Two important truths about rotational seal design are:

     

    1) A single seal cannot separate two liquids and paradoxically;

    2) A seal that doesn't leak, leaks.

     

    Point one. If you have two liquids - water and grease/oil, you cannot protect the bearing with a single seal. Good hubs thus have a contact seal as the inner seal and a labyrinth (non-contact) seal as the outer seal. A labyrinth seal can be visualised by holding your hands in front of you whilst making two Cs with your fingers. The right one will be a mirror image of the left and reversed. Now lower your right hand until the two Cs intersect and bring it closer together. The cavity between them will be S-Shaped. Now rotate the two against each other and you have a visual representation of a labyrinth seal. It does't make contact and is only splash-proof, not submersible.

     

    The second seal is a contact seal or wiper seal. It has to follow law number two.

     

    Point two: If a rubber seal is not lubricated, it will burn away and no longer seal. Its lubrication comes from the inside and is the same grease that greases the bearings. It is designed to slowly leak out so that the seal is lubricated. The grease inside the bearing is thus a consumable and once there isnt enough left in there to leak out, the seal burns and stops making contact and stops working and hence stops burning. By burn I mean rub away like an pencil eraser rubber on a table. The fact that the seal leaks is evident from bearings. You'll see after use that the bearing pushes out a little bit of grease.

     

    Now, since the seal actually leaks (so that grease can come out) it also allows water to come in. Water in contact with such a seal whilst it rotates, can get in.

     

    All good hubs are protected by these two seals. Most people erroneously refer to the labyrinth seal as a dust cap, which it isn't.

     

     

    Some components, like the right hand side of some Shimano rear hubs, are only protected by a labyrinth seal and water is easily forced into these hubs. Many headsets only have a labyrinth seal at the top and nothing at the bottom. That's because water usually drips onto the bike from the top. (They seem to have forgotted about the stream of water shot up by the wheel, but that's another story).

     

    Some hubs, like DT Swiss and Mavic, are very poorly designed an either side and have no labyrinth seal protecting the bearing. Water is easily blown into these hubs. Hope hubs juse a combination of O -rings in addition to the cartridge bearing's own seal. However, between the freewheel body and hub itself, is a plastic ring that doesn't make contact and acts as a sort-of labyrinth seal. Not submersible and will certainly leak if sprayed.

     

    Modern external cup BBs are also poorly sealed. The plastic press-fit spacer is a disfunctional labyrinth seal. BBs in BB shells without drainage holes are particularly vulnerable from water entering from the seatpost and eating at the bearings from the inside out.

     

    Cable ends are not sealed against water at all. Even a light spray easily penetrates cable housing and ruins the cable a few weeks down the line when it starts to oxidise and become tardy in moving around. Most mountain bikes ship with exposed cable runs and it is easy to see what water does to this. We have discussed this here often and it is not difficult to see that an, even gentle spray of water, will do to these cables.

     

    Pedals, especially slightly worn Shimano and Crank Bros pedals have very delicale contact seals at the inner end of the axles. Once these are worn, water is easily blown in there and trapped against the small little bearing that quickly rots.

     

    Lots has been said about how tough seals are. Well, they're not. If you inspect them you'll see that the rubbing end is a thin, tapered lip that is easily flapped around by a bit of compressed air or water jet. However, this is not the big issue. Once they are slightly worn and no longer making contact, water will penetrate very easily. Although a bearing with a worn seal is not completely destroyed yet, water in there will just cut its life short.

     

    Sprayed water also carries contaminents with it. Shifters - mountain or road, have open designs. All that protects it is an unsealed cap. Grit and muddy water from road spray easily penetrates these and impairs function over the long run.

     

    I remain convinced that a long ride on the roof of a car is not good for the bike.

     

     

     

    I'm with you on this! Good job!

  11. Rule #34

    Mountain bike shoes and pedals have their place.

    On a mountain bike.

     

    Oh dear...

     

    That rule book again. I'm not normally an avid rulebook breaker. But it sounds like I have just broken another one of these rules. I fear this now makes me a bit of a rebellious character...

     

    Does anybody have a actual hardcopy of this book.

Settings My Forum Content My Followed Content Forum Settings Ad Messages My Ads My Favourites My Saved Alerts My Pay Deals Help Logout