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JXV

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Everything posted by JXV

  1. JXV

    Chain cleaner!

    Yes all flammable but petrol/benzine will produce a flammable vapour cloud above the liquid surface at room temperature. Paraffin does not. Bear in mind chain has ferrous metals. Can spark when dry. So can plastic containers (static) and synthetic clothing. People underestimate petrol all the time. You dont have to be smoking to set it off. To ignite paraffin at room temp you would have to actually touch a flame to the liquid surface so chance of accidental ignition is much less. Sorry for the sermon but if prevents just one accident out there I'm happy
  2. Looking from behind I aim the nose of the saddle at the top of the steerer tube (stem)...then adjust for comfort from there. I guess the advice will vary depending how long your legs are and whether you like your bars high or low
  3. JXV

    Chain cleaner!

    Commercially available benzene is a petroleum distillate and doesnt contain much actual benzine (C6H6) which is a known carcinogen. Still dangerous though because very flammable
  4. JXV

    Chain cleaner!

    Benzene is basically low grade petrol. Both extremely flammable and have strong solvents that are not good for you or your skin. Paraffin much less dangerous. I soak the chain in it, shake it up a bit and scrub with an old toothbrush. Hang up to dry in the sun...then refit and lube. Not all chain components are corrosion resistant so I avoid water and degreaser as much as possible. Its a mountain bike - it doesnt have to sparkle
  5. He said the SC Tallboy LTc meets your spec.....except maybe for the water bottle cage inside the triangle....... And they've been available for a while B)
  6. I have 38/26 on my new 29er with 11-36 cassette. It is slightly harder on steep stuff than the 3x9 XT drivetrain on my old 26" bike but a bit more riding will soon sort that out.
  7. How often are you using the 24 ring on your 3x system? I found that all it took was a determination not to use it. Within a few months of occasionally standing up to push hard in a bigger gear, my legs got stronger and soon I was only using 42t on my local trails. Some of my friends the same. Next question, what size wheels are you riding and what style of riding? If 26" then 40/28 should be OK. Anything shorter than 40 will irritate you on the flats but if you only ride rough twisty singletrack you could go shorter. If 27.5 I'd choose between 38/26 and 40/28 If 29er then 38/24 or maybe 38/26.
  8. Standard 1/2" pipe has inner diameter of 15.8mm so that home-made adapter will be a bit of a loose fit on your finely machined 15mm alloy QR skewer and I suspect will eventually damage it. Considering the time it would take me to buy the bits and get them machined/welded - I would happily pay in the R300 to R400 range for a nicely made holder.
  9. You have to decide if you want an adaptor to fit a 15mm thru-axle QR to a 9mm skewer type holder or if you want a 15mm QR holder that bolts onto your roofrack/carrier. In SA, Holdfast makes 15mm QR holder but I was recently told by the rep they have been asked not to sell them as they are modifying the design. I have not seen the Thule adapter in stock locally. Another USA brand to look at is RockyMounts but I think this will be expensive and I don't know if there is a local supplier. Will not be difficult to make this - I would do it if i had the machinery. Anyone with welding machinery and a lathe can do it. The dimensions for 15mm QR system are available online.
  10. Latest & greatest, new, fashionable, lighter. Less of them so economy of scale also a factor. More desirable to the market = higher price. Things sell for the price the market will bear.
  11. 3 factors not mentioned; -if you ride mostly on prepared mtb trails the gradients are usually more friendly than unprepared stuff. If you like to explore then more gears can be nice. -don't forget if you are changing wheel size as well as gears (i.e. a new bike) then bigger wheels are harder to pedal with the same gearing - if you prefer spinning (high cadence) to pushing hard then reduced gear range will affect you more. Home turf for me is Hilton/Cedara/Karkloof. On my 3x9 26" bike I was only using big ring 42t for the local trails on a 11-36 cassette. Changing to a 29er I'm glad I went 2 x10 with 26-38 front on a 11-36 cassette. Dont use the small blade much on the trails but it is nice for exploring new ground which is much rougher and steeper at times
  12. Reading the first post I was thinking it is cosmetic damage you can live with....then I saw the pics. Seller has clearly taken advantage of the anonymity/separation factor in online sales. Prob hoping the buyer will cave bcos other options all cost more or take more time. Thanks for the heads up on this seller.
  13. It is extremely difficult to see the runout by removing disc and placing on a flat surface....much easier to see it by turning the wheel while observing the gap between pad and rotor at the caliper. If it is just touching lightly then bend by hand as so many here have already advised. Be careful because those edges are sharp.
  14. Thanks. Phoned the guy. He hopes to have some stock in my area by next week.
  15. Hi. Anybody know of a supplier for a 15mm QR bike mount that I can bolt onto my rack? Would prefer a standalone mount to an adapter that fits a conventional skewer type mount. Tks
  16. My new Tallboy LTc. XT brakes and drivetrain. Spesh Contour grips and saddle. After 11 yr on an old Maverick I'm loving it but still getting used to big wheels
  17. Beware if recycling avid rotors the 180 rotors may well be 185....so you might need Avid post adapters . Mixing brands with rotors and calipers can be a bit tricky. BTDT. Can say the new XT brakes with Ice tech rotors are way better than older XT...which were better than Avid Juicy 7 on my bike
  18. Does it climb off the big ring or the small one...or both? Seems like setting the limit screws on front der. might help. Also...is ur chain too long?
  19. Brad I ride before dawn several times a week. MTB mostlly singletrack, sometimes road. I use a LED Lenser M7R on a handlebar mount and its greatest advantage apart from good brightness is its ability to zoom out wide for single track and in for a longer beam on road. Only way I could live with handlebar mounted fixed beam again is if I had two of them...one spread beam and one longer spot ( as per the old Sigma halogen set I used to have). I saw a light very similar to tthe one you have posted recently and it has an excellent beam on it but to my mind not nearly enough spread for twisty single tracks. Another trick that works well is to use a high end LED headlamp on your helmet (e.g Petzl, princeton tec or Black diamond) and a fixed beam on handlebars.
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