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Calculus Bikes

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Everything posted by Calculus Bikes

  1. IMHO lots of the recommendations seems directed to bikes used for more technical riding than what Mr Mol would use it for; adding bling to the build, but also weight and not giving the ideal ride for his application. Typical case of nice to look at, but no real difference between any other "new" bike his had. Something longer, with less progressive geometry and travel not more than 120 front and 100mm rear would be my recommendation.
  2. Something like this with a bit of 12k twill paint by Jared...and a F34 upfront, obviously also custom painted and colour matched to some classic CK parts.
  3. Hi 45, we would love to give you a hand with the prototype. You can drop me a line at millar@calculus-bikes.com
  4. For those asking; yes this is one of ours. Super cool project we did with MUNGA specific details such as: - 5x Bottle cages on the frame. - Custom geo. - 650b 2.8" rear wheel, and 29er front with the Lauf. Last said feature is really interesting and worked a charm keeping the rider body in tact on the famous "sinkplaat".
  5. Hi Dylan, thanks for the shout-out. Looking forward to get you riding on your CALCULUS asap. Nice and racy geometry on this project for a gravel.
  6. Amazing what a bit of bungy cord can help with. Good Principal to keep in mind is F=MxA with force being not only a function of the mass, but also acceleration. With the front wheel moving a lot more up-and down than the main triangle the bosses/strap-on keeping those bottles in place has to work a lot harder. Hence its an option to have it on a touring bike where you are less likely to have 150km of un-interrupted sinkplaat. Just an engineering preference IMHO.
  7. Hi, yes we considered the fork mounted option, but for gravel/off road its a terrible place to add weight with increase in un-sprung weight of the front wheel, poor handling and lot of unnecessary stress on the fork. Since we know the exact measurement of the rider the side bottles are moved quite high up on the down tube and out of the way of the riders knees. GM will have to comment on how they feel in a full-speed sprint...
  8. Good Q, Mostly to keep rider fresh and isolated from the RSA corrugations. This way we get 80% of the advantage of a dual in a HT chassis. This bike can also take a 29er, so there is the flexibility to change to a different wheel based on the ride.
  9. Hi All. Its always great to see a plan come together on these projects. Designing for the MUNGA is always fun as its such a unique race and every rider has their own recipe for what they want from their bike. With this one we indeed pushed a new boundary for in-frame hydration with space for five bottles and the "mullet" design. Not easy (and had to compromise some branding space ;-) but happy to do it in the name of applied sciences). https://www.instagram.com/p/B25-ePVHydU/ Let us know if you have any more Q about the design. Thanks for all the comments and happy riding!
  10. Thanks everyone, please keep eyes open for her on the roads, and ...Gumtree!
  11. Stolen: CALCULUS WhiteStone 2019 When: 20 September 2019 Where: Hermanus, Stolen from van. Get further details about the incident in the Stolen Bikes section
  12. Some feedback on the HUNTS: Wheels have been ridden the last two weeks and have really enjoyed them. The overall ride feel is that of a high quality set of wheels. Certainly not your ordinary OEM wheel sets shipped often even with higher end bikes. The Aero 30's are also impressively light witch also adds to their feeling of speed. The depth of 30mm and wider profile of 30c tires has also been a very good combination for high wind rides where the deeper section require constant counter steering in the gusts. All in, very happy with the wheels thus far and looking forward to many more miles with them.
  13. Thanks, we chatted to them about a B2B price given they only go onto our frames.
  14. Hi, we (CALCULUS BIKES) have been in discussion with them to supply us with their wheels for some of our top end builds. We did lots of research on different options and they are very well ranked. Previous comments is correct in that they dont have a local distributor as they feel they can manage/control service better themselves. Their direct to consumer model is also well oiled with their shipping and support internationally. As for actual riding experience we have very good reports from some UK clients running them for their winter bikes. Our first set (Hunt 30 Carbon Aero Disk) is currently in Jhb customs going to be used on a "aero" frame, so will be able to give some more feedback on riding in the next couple of weeks. Looking forward!!
  15. Were busy with a AXS build on one of our clients bikes, will be able to get some feedback on its riding performance in a couple of weeks. Hang tight!
  16. Hi Dave. Congrats on the graduation. Suspension performance/feel has very little to do with the orientation of the shox. The way a good (or bad) design functions is based on all the forces, angles and ratios of the pivots, linkages, material etc. Anyone trying to simplify it to shox orientation is trying to sell you their total lack of understanding of the topic. Focus on the actual (riding) performance of the design as a whole, not just a single component, and most importantly, how well it matches YOUR type of riding. Cheers
  17. Hi Heinrich. You can indeed use the same rims with new hubs. Just make sure the spoke count is the same when getting new hubs. And check with LBS (or online spoke length calculator) if you will need new spokes to take note of additional cost of spokes which is often overlooked. Enjoy the new bike!! Cheers
  18. Top end ceramic bearings are pricey!
  19. Were looking forward to a couple of C-Bear T47-DUB BB's that were going to use on some upcoming projects. They have a very good selection of standards available if your considering top-end ceramic.
  20. Hi Bob, RushSports use to do them, but not sure if they still do Wheels MFG BB. Best to check with LBS to give them a call. Cheers
  21. Friday 2-cents as follows: If you have the same power-to-weight, core strength and pedal stroke modulation as a world champ it makes sense to blindly follow their setup. If not, spend a R1k to test an oval to decide how it works for YOU.
  22. Will see you guys and girls there, showcasing some of the latest projects we have been working on...
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