Jump to content

morrgreg

Members
  • Posts

    21
  • Joined

  • Last visited

Public Profile

  • Province
    Gauteng
  1. Yip. Just trying to ensure its not missed. It would be a damn shame to have trained and not to be able to do event.
  2. A mate of mine has lost his Epic partner and needs one urgently. Strength wise he is likely to be a 7 hour a day rider on EPIC. PM me (Greg) if anyone is keen.
  3. I will also be in Umhlanga between 22nd and 5th with my MTB doing some training for EPIC. Name is Greg. Number if you keen to ride is 0827831945
  4. Mervin, do you have the 7800 or 7850 version. I believe the 7850 is a lot stiffer.
  5. As regards the wheels being the first. I did qualify the statement. Shimano SA told Dunkeld cycles that it was the first set they had sold. The wheels were R8,5k. As regards the slime used, it is s Hutchinson specific type. Those Corima's look nice. The key for me with the Dura Ace wheels is that the technology was developed jointly by Shimano and Hutchinson. I agree that the tubeless revolution is upon us. All the manufacturers are working on designs.
  6. Took the plunge a couple of weeks ago and bought the first set, or so I was told, of tubeless road wheels in SA. They are Shimano Dura Ace Wheels with Ti Hub and Skandium Rims. The Tyres were specifically developed together with Shimano by Hutchinson. They have a thicker sidewall than standard Clinchers yet weigh less than a standard tyre tube combination. The wheelset weighs in at 1500grams. The theorertical benefits of the setup are:1 1. Puncture resistance ala MTB tubeless (although you can use a tube if the tyre is slashed); 2. Lower rolling resistance similar to tubbies due to the lack of frictional kickback between the tube and tyre that a conventional clincher experiences; 3. Better comfort due to lower working pressures without the risk of pinch flat or tyre rolling off rim. My first ride was at 7bar. Although one can ride as low s 5,5bar (depending on your body weight). My brain would not allow me to ride at such low pressures. Impressions relative to claims: 1. Puncture resistance - so far so good. Although I haven't done much milleage yet to really comment; 2. Noticeable improvement in rolling resistance. Similar feel to a tubby. Fantastic; 3. Comfort at 7 bar was brilliant. My next ride will be at 6 bar. I am hoping that it smooths out those rough Cradle surfaces. In summary, tubed road tyres are dead. If you are in the market for a new set of training wheels - and I hazzard, racing wheels. These are awesome.
  7. its a falacy that slow rides burn more fat than more intense rides. All that happens is that the ratio of carb to fat increases. Overall you still burn more fat if, given the same amount of time in the saddle, if you ride harder. I lost 20kgs in the first few months of this year (88-68kg) using Carol Auston's program. She measures your resting metabolic rate accurately using a calerometer. You then capture all your food into a computer program that keeps track of calories and food type split. Basic principles are: calories eaten less than resting metabolic rate plus exercise calories burnt minus say 200 calories per day in order to lose 0.5kg per week. Its easier than it sounds- my 60 year mom uses it and has lost 10kgs. Everyone that I have sent to Carol has los weight and maintained. Goto www.activeworx.co.zamorrgreg2007-12-18 13:18:23
  8. You only put about 10-15 grams of slime in a tubby, hardly a major penalty. Another great deap section option at a reasonable price are the Zipp Flashpoints. They are essentially the old non-dimpled Zipps that Zipp continued to manufacture as their budget wheel -Cycletech in Kyalami has them. I ride the 303 Clincher Equivalent Flashpoint as my daily wheel, they are the identical weight to the Mavic Ksyrium ES but have a far better ride and the added Aero benefit - and are substantially cheaper than the dimpled Zipps yet retain the pedigree and backup.
  9. Spinnekop, have you got the power attachment for your CS600?
  10. Spinnekop, have you go the power attachment for your CS600?
  11. To add to all of this an example: In the Lost City race my heart rate sat over 180 for much of the time (averaged 165bpm for the race) and yet theoretically my threshold HR is 170 - I should have blown up. If I was riding using HR as the measure I would have backed off and got dropped for fear of blowoing up. Using the PM, I could see that I was riding well within my threshold power and finished comfortably in 2:25. My average normalised power was only 200watts for the race, some 80 watts off threshold. The fact that I felt pretty good after, no ill effects, bore testimoney to that. High HR must have been due to race nerves etc etc. I have often seen 20bpm difference in average HR over the same ride at the same effort. Once you have trained and raced with power you kinda wonder how anyone can train effectively without it. RPE is probably a better measure than HR, closer to power - in my opinion.
  12. The hub spins really freely. Feels like there is very little friction - certainly realtive to Ksyrium SL's I had. Although only used on the IDT, so not sure how they fair on the road.
  13. Hey Jeremy, its GregM. I had a Mavic Open pro wheel with Ultegra hub built for my IDT. It was less than R1000 and it rolls really well, is definately strong enough to handle your weight. I am sure the front will be quite a bit less. I recon you could come in under R2k for the set. Got the wheel built at Cycletech near your house.
  14. Apparently, some of the pros make it a contract condition that they can ride these wheels
Settings My Forum Content My Followed Content Forum Settings Ad Messages My Ads My Favourites My Saved Alerts My Pay Deals Help Logout