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Spafsack

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Posts posted by Spafsack

  1. 15 minutes ago, ChrisF said:

    Think I should give this a try on my HT roadie bike ... tired of riding into the grit flung up by the front wheel.

    Hi Eddie, this polysport one looks nice, how do you recon it mounts?

  2. 7 hours ago, Mountain Bru said:

    Here's a piece of art to show why they work, and why they don't need to be bigger:

    image.png.60a1fc1e211c744d1dde98f21af61d5b.png

     

    Science tells us that whatever mud/water/cow poop/stone is flung off the tyre while it spins will fly off mostly tangentially to the rotation of the tyre (black arrows). (I know this isn't 100% true due to centrifugal force, but lets pretend it is because this isn't engineering class, and the concept is the same)

    The stuff in the green zone will hit the frame/fork crown, and possibly build up there, but not hit you in the face assuming your wheel is straight. If your wheel is turned, good chance it flies past you and your face remains cow poop and mud free. 

    There probably wont be too much stuff flung off in the blue zone as most things would have already been flung off. In any case, this stuff will just land in front of you or hit your head tube/tyre as you move forward.

    Red zone is the problem zone. Remember you're travelling forward (lets say at a constant speed), but the stuff that's been flung up is decelerating and not moving forward as fast anymore. You're therefore gonna hit that red zone with your face / body and end up with face full of poop or whatever you just rode through. If you're a new parent, maybe this is normal, but I prefer to keep my face poop free. 

    But from my super detailed artwork, you can see that the only stuff you really need to worry about is the red zone stuff, and so your mudguard only really needs to block this stuff and therefore doesn't have to be that long to keep the majority of the crud your tyre picks up out of your teeth and off your stanchions. 

    Hey MB, thanx for this detailed explanation ???? I see the c6 ones are only R150, rockshocks on takealot are R250, i think for R150 you cant go wrong. Will cost me more time and effort to make one up myself, so will order and try get delivery this week, then i can test.  

  3. Hi everyone. I suspect i know the answer to my question but perhaps there is a small percentage of peeps who use these small mini front mud guards, fenders, which are happy....I dont expect it to stop everything like hectic mud, but who has fitted these and what are your thoughts. What are the pro's and con's, then again, at R150 i guess i cant expect full protection. I am looking at one of these C6 ones for my sid ultimate fork. Which i had the newer forks which have the screws in so you can properly mount the syncros mini fender, but such is life, please advise. 

    MudguardWhite01-Grey01WB_1024x1024.jpg

  4. I looked at the replays again when he wiped out. At first i thought he took a different line, to the left, but looking at the slow mo's you can actually see he front wheel is down, hardly enough weight on the back, as if he thought there was a ramp. Still makes no sense, he saw the riders infront of him going over at speed, leaning back, front wheel up. Its still bad form form him to say what he said.

  5. I have first hand experience to how different a trail bike compares to a xc bike. I also think we need to know the OP's age, height, predicted distance per week, might help.

    My wife [45] then, rode a Silverback Stratos al3. This was her first move / change, coming from a Giant hardtail 27.5. Yes, the slacker silverback was more comfy, but the riding we do did not justify the slackness and weight. We do the types of roads the OP is talking about. Most MTB Races are just fine for xc.

    I sold her bike as she was really complaining on long uphills, and we all no that there are tons of climbing on our local mtb races. She takes it easy downhills, we dont want to wipe out now at this age. The bike weight bothered her, even though she is 1.6m, 53kg and fit. So getting back, sold her bike, bought a second hand Scott contessa rc 900 wc. It is in a completely different league, its a medium but the size looks smaller, it weighs around 10.5kg.

    She is so much happier on this, does not have paid, does not need more slakness, is fine in any condition, road type. The suspension is way better even though its a 2 year old bike. Uphills she rides away from me now, compared to her close to 14kg silverback. Looking at the Geo, the scott is not that much more 'straight up' versus the stratos, but i guess you cant compare a bike which when new was almost 100k with a new stratos for 35k. She does not have a dropper as she takes it really easy on downhills, tech stuff. For us its the climbing, thats the work out. Different strokes for different okes i guess. These are my thoughts and for what we do, what type of riding she does, it works 100%.

    414.jpg

    stratos_al_3_silverback_bike_right_badgesq_1500x.jpg

  6. As OP initially said: 'We are looking to ride on weekends around our local trails, which in the Free State means flat and dusty, but we would also like to be able to take our bikes with us on holidays and ride trails there, whether it be in the Western Cape or KZN. Also looking at doing some stage races just for the experience, and obviously to test ourselves, like Sani2C, Wines2Whales and the like.'

    Bloem is my old home town, born and raised there, its flat, its XC. The worst feeling when starting out is spending a bunch of money on a bike which weighs 14kg and you struggle on long uphills due to the weight, slack angles, cant really put your power down. Stage races as he mentions are also XC. Knowone is saying get a XC Weapon, but i think you will do just fine with them, new or secondhand.

    RE, Dropper posts, you will see how handy this comes in, how much safer you feel, more in control, just on long decents, technical stuff, not hectic, makes a huge difference.

  7. 18 minutes ago, Mountain Bru said:

    Seems there's some drama about the MVDP crash...

    Apparently there were was a wooden ramp at that jump in training, but they removed it for the last practice session. MVDP was apparently expecting it and so wasn't prepared for the jump.

    If that's true, it's pretty poor from MVDP considering everyone seemed to know what was coming. Not been a good 2 days for Dutch cycling.

    Image

    This is interesting, the way it looked to me watching live was that it seemed he did not carry enough speed at all. I saw on Cadence last week that Candice was training over and over, every day, on a similar massive drop, so it must be this one. As i said, this is really hectic for the ladies, hope none of them wipe out. Still makes no sense as you said that mvdp did not know this drop was coming. But as i said, he looked wat to slow at the top, like completely unexpected....  

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