'Dale Posted January 23, 2017 Posted January 23, 2017 I can see how disc brieke are useful for the PROs, covering all that distance at high speeds over big mountains For the weekend warrior in D bunch in SANaai man Any case Technology - can't avoid it - in every dimension of life
lechatnoir Posted January 23, 2017 Posted January 23, 2017 I'm not a roadie so I wouldn't know but it looked odd. Stands to reason that braking forces generated at the hub by a disc must be transmitted via spokes to the tyre's contact patch so the spokes might need to be a bit more beefy than a rim braked wheel but still? Sent from my SM-G935F using Tapatalk That and that it says 'offroad' on the motox suspension fork
JXV Posted January 23, 2017 Posted January 23, 2017 That and that it says 'offroad' on the motox suspension forkAaaah now I see....not actually a bicycle...just for illustration Sent from my SM-G935F using Tapatalk
carbon29er Posted January 23, 2017 Posted January 23, 2017 I can see how disc brieke are useful for the PROs, covering all that distance at high speeds over big mountains For the weekend warrior in D bunch in SANaai man Any caseTechnology - can't avoid it - in every dimension of lifePlease test ride a road bike with disc brakes then comment. Unless you weigh 50kg you'll notice a big difference, even on Cape Town's mini hills. But particularly in the bunch when the crash is 2 or 3 bikes in front of you. Tommeke rates them and he won't be riding the big mountains this year. Kittel neither. And he's committed to using them.
lechatnoir Posted January 23, 2017 Posted January 23, 2017 So according to SA cycling rules, disc brakes are not allowed in race events. IMG_0671.PNG Seriously? Who has V-brakes or cantis (shock horror) on their MTB anymore? thinking that this clause applies the racier end of races. Yes?
Velouria Posted January 23, 2017 Posted January 23, 2017 I don't really have an opinion on this topic, as I have yet to try out discs on a road bike. I can't really see what the fuss is though. Thankfully, in a little over 6 weeks I'm getting one of these:I still need to rewire my brain into not thinking that this is a cyclo-cross bike, but I imagine that will just take a few rides
lechatnoir Posted January 23, 2017 Posted January 23, 2017 Tommeke rates them and he won't be riding the big mountains this year. Kittel neither. And he's committed to using them. I think the convo may have gone like this: Yes, I know it's discs Marcel. No, not that much heavier. What do you mean 'normal' brakes? No, this is the bike you're riding. Really? So, about that salary we pay you...? Yes, that one... That means this is the bike you're riding. I know, but have you seen the online clip of Sagan wheelie-ing a bike around? Anyway, it looks cool...
carbon29er Posted January 23, 2017 Posted January 23, 2017 Read the cycling news article on Sagans venga disc version being over 8 kg..... dont think he rode it preferring for some reason the rim brake version, guessing because of the weight and not because he prefers rim brakes.... That's another type of squeak... I was referring to the much more silent chir chir squeak... the one that the pads make as they touch the disc at one spot every revolution of the wheel.... That bastion of truth in cycling Bicycling.com weighed their teat units at 16.9 lbs for disc brakes and 16.8 lbs for rim brakes. All other things equal. That is hardly a weight penalty. But yes, over the UCI minimum. http://www.bicycling.com/bikes-gear/reviews/first-look-specialized-venge-vias-disc As to the tick tick of a bent rotor, hasn't been an issue in 2 1/2 years, I think road bikes take less of a beating than mountain bikes.
'Dale Posted January 23, 2017 Posted January 23, 2017 Please test ride a road bike with disc brakes then comment. Unless you weigh 50kg you'll notice a big difference, even on Cape Town's mini hills. But particularly in the bunch when the crash is 2 or 3 bikes in front of you. Tommeke rates them and he won't be riding the big mountains this year. Kittel neither. And he's committed to using them.The PROs definitely need them with the time volume they spend in the saddle The average amateur doing a century race a handful of times in the warm months - not necessary hey The tricky part will come when some have this trendy update in my race bunch and some doesn't ????
Frosty Posted January 23, 2017 Posted January 23, 2017 Does anyone know what the rules are concerning using a disc brake road bike in our local races?Here is the rule book - see attached (page 6). 20161125_00.3+Cycling+SA+-+Rules+of+Cycling+PART+3+16.11.19.pdf
Frosty Posted January 23, 2017 Posted January 23, 2017 Let's all just go back to the simple back pedal brake we started on..problem solvedNot allowed by the UCI - has to have brakes on both wheels. edit:From the UCI rule book:1.3.025 Freewheels, multiple gears and brakes are not permitted for use on the track during competition or training.Disc brakes are allowed in cyclo-cross training and competition.For races on the road and cyclo-cross, the use of fixed sprocket is forbidden: a braking system that acts on both wheels is required.(text modified on 1.09.04; 1.01.05; 1.01.09, 1.07.09; 1.07.10).
eccc whippet Posted January 23, 2017 Posted January 23, 2017 the bonus about disc...when a spoke breaks...you dont fight the pads all the way home...and yes i did lift the release to open the brakes as you do when you remove the wheel. think about the pressure the brakes put on the spokes when braking on the rim compared to the hub...for us fatties...less pressure on the spokes the better. like the trek in the pic above...with disc brakes...as soon as my piggy bank is full
Frosty Posted January 23, 2017 Posted January 23, 2017 Vets or open seeded?Open seeded is classified as Cycling for all: Cycling for all1.1.039 A cycling for all licence is issued to the cyclists practising cycling as a leisure activity. This licence shall give access only to events on the cycling for all calendar.(text modified on 1.01.05). They are not bound by UCI rules, but rather the local affiliate/event organiser rules. So disc brakes are allowed in the open bunches. Otherwise MTB will not be allowed to enter a road race.
NotSoBigBen Posted January 23, 2017 Posted January 23, 2017 Open seeded is classified as Cycling for all: Cycling for all1.1.039 A cycling for all licence is issued to the cyclists practising cycling as a leisure activity. This licence shall give access only to events on the cycling for all calendar.(text modified on 1.01.05). They are not bound by UCI rules, but rather the local affiliate/event organiser rules. So disc brakes are allowed in the open bunches. Otherwise MTB will not be allowed to enter a road race. Sjoe ... wipes brow - was thinking if it was a wet race ever would take my Frankenstein bike
Frosty Posted January 23, 2017 Posted January 23, 2017 If UCI finally legalizes disc brakes, I suppose that the rules will include the required usage of rounded discsHave you got a link to the statement or rule book.The latest version (updated 14.10.2016) doesn't show it's allowed for road. edit: here's the current rules on UCI.org Part I: General organisation of cycling as a sporthttp://www.uci.ch/mm/Document/News/Rulesandregulation/17/68/12/1-GEN-20160909-EN_English.PDF Road raceshttp://www.uci.ch/mm/Document/News/Rulesandregulation/17/73/59/2-ROA-20170112-E_English.pdf Cycling for Allhttp://www.uci.ch/mm/Document/News/Rulesandregulation/16/75/94/15-CPT-20160101-E_English.pdf
Spinnekop Posted January 23, 2017 Posted January 23, 2017 Have you got a link to the statement or rule book.The latest version (updated 14.10.2016) doesn't show it's allowed for road. edit: here's the current rules on UCI.org Part I: General organisation of cycling as a sporthttp://www.uci.ch/mm/Document/News/Rulesandregulation/17/68/12/1-GEN-20160909-EN_English.PDF Road raceshttp://www.uci.ch/mm/Document/News/Rulesandregulation/17/73/59/2-ROA-20170112-E_English.pdf Cycling for Allhttp://www.uci.ch/mm/Document/News/Rulesandregulation/16/75/94/15-CPT-20160101-E_English.pdfAs far as I know and have read, the UCI (World tour teams) are TESTING the use in races. Don't know when the process will the trickle down to us bottom feeders riding in the license cats in SA.
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