gravel tyres on the road
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gravel tyres on the road
Postby eeksll » Wed Mar 07, 2018 2:52 pm
as I am starting to explore more, it seems ALOT of the roads I have not been on around the adelaide hills are firetrack kinda roads ie not very loose but there can be some loose stuff. I can ride fine on 25c road tyres, but not overly confident to pedal too hard on the flat and def riding the brakes whenever there is a downhill slope, uphill not really a big issue, can pedal as hard as i want.
I don't have a bike that will take these kinda tyres, but just musing about next bike etc
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Re: gravel tyres on the road
Postby NASHIE » Wed Mar 07, 2018 3:19 pm
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Re: gravel tyres on the road
Postby silentC » Wed Mar 07, 2018 3:48 pm
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Re: gravel tyres on the road
Postby find_bruce » Wed Mar 07, 2018 4:20 pm
How much the trade off is will depend entirely on which specific tyres you are comparing, the type of tarmac etc.
I have been quite happy riding 28mm road tyres on short stretches of gravel roads in country NSW, but when I am planning to ride a reasonable distance on gravel I take a bike that can run Schwalbe smart sams.
They are comfortable enough on tarmac, but (1) I'm no racer & (2) I descend and corner slightly slower - its not just grip, they are bigger tyres running lower pressure so move around a bit more
The main reasons I switch back to road tyres are not due to any lack of confidence, but rather ridding knobbies on the road wears them out a bit too quickly & squares the tyre off which does make it harder to corner.
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crack out the epipens
Postby Thoglette » Wed Mar 07, 2018 4:51 pm
Those now in anaphylaxis will be trying to say "but he sells those tyres", as well as rides them.
"People are worthy of respect, ideas are not." Peter Ellerton, UQ
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Re: gravel tyres on the road
Postby singlespeedscott » Wed Mar 07, 2018 5:11 pm
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Re: gravel tyres on the road
Postby RonK » Wed Mar 07, 2018 5:25 pm
It's probably a fair assumption that a wider tyre will have a larger contact patch so should in theory have more grip, but again this likely to depend on the grippiness of the rubber compound and the tread pattern.
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Re: gravel tyres on the road
Postby Ross » Wed Mar 07, 2018 7:46 pm
It takes a lot more effort to initially get up to speed, like taking off fast from traffic lights. There is the total weight difference between my 2 bikes to take into account as well - CX is about 11kg and roadie is about 7kg.
I don't have any issues going downhill, corners maybe a bit, but the bikes are different geometries, so not a totally fair comparision. I haven't bothered to fit slick/road tyres to a spare wheelset because (a) CBF stuffing around changing wheels (b) I often decide spur-off-the-moment on my commute to try an off-road route (c) the heavier CX with more resistance is good training so that when I get back on the light roadie it feels very fast with not as much effort as riding the CX
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Re: gravel tyres on the road
Postby chriso_29er » Wed Mar 07, 2018 8:33 pm
If so I have an interesting comparison of a full road slick verses a small block xc/gravel mtb tyre.
I hold a top 30 out of 2959 place on strava down a technical -8% double hairpin 2.45km decent on my 23c slick road bike. Believe me, scary ride on thin tyres.
The same decent on fat xc tyre, best is only 6 seconds slower, but feels much more confidence inspiring.
In my opinion the average rider would probably decend with more confidence on the fatter gravel tyre, even if its not a slick.
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Re: gravel tyres on the road
Postby eeksll » Wed Mar 07, 2018 9:39 pm
yeah its kind of a double loaded question now that I think about it. I want a tyre that has more grip on slightly loose surface like gravel or a slight layer of dust (especially on downhill corners) but I don't want to trade that for loss of confidence when descending on tarmac. Note that is confidence not speed, I don't mind loss of speed, but I don't want to be braking because I feel like I am going to go down.chriso_29er wrote:I think you question is regarding knobby tyre grip on tarmac?
Its my weekend ride and after riding the same roads for so many years, keen to explore a bit more. But the majority of the ride will still be tarmac.
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Re: gravel tyres on the road
Postby NASHIE » Wed Mar 07, 2018 10:04 pm
Strade was a great race on the weekend, link above for what the pros use. The camera bikes and cars where struggling in many sections to match pace with the bikes on the gravel/limestone, some very good riding in poor conditions. Was also great to see XC world champion Van Art given a wild card entry and finishing 3rd and Aussie Rod Power 6th.
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Re: gravel tyres on the road
Postby eeksll » Wed Mar 07, 2018 10:12 pm
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Re: gravel tyres on the road
Postby Smithstreet » Wed Mar 07, 2018 10:28 pm
I'm pretty sure there's an asthma puffer strapped to that bike in the first pic.NASHIE wrote:https://www.google.com.au/url?sa=t&rct= ... BnLRQ0Gnvw
Strade was a great race on the weekend, link above for what the pros use. The camera bikes and cars where struggling in many sections to match pace with the bikes on the gravel/limestone, some very good riding in poor conditions. Was also great to see XC world champion Van Art given a wild card entry and finishing 3rd and Aussie Rod Power 6th.
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Re: gravel tyres on the road
Postby NASHIE » Wed Mar 07, 2018 10:53 pm
Thats all going to get ugly.Smithstreet wrote:
I'm pretty sure there's an asthma puffer strapped to that bike in the first pic.
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Re: gravel tyres on the road
Postby singlespeedscott » Thu Mar 08, 2018 8:43 am
Seriously You just need a fat tyre, min of 30mm, with a herringbone or diamond pattern and you will be fine. Have a look for some Panaracer Gravel Kings, Maxxis Re-fuse or if you feeling rich Compass tyres.eeksll wrote:thanks for the replies so far.
yeah its kind of a double loaded question now that I think about it. I want a tyre that has more grip on slightly loose surface like gravel or a slight layer of dust (especially on downhill corners) but I don't want to trade that for loss of confidence when descending on tarmac. Note that is confidence not speed, I don't mind loss of speed, but I don't want to be braking because I feel like I am going to go down.chriso_29er wrote:I think you question is regarding knobby tyre grip on tarmac?
Its my weekend ride and after riding the same roads for so many years, keen to explore a bit more. But the majority of the ride will still be tarmac.
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Re: gravel tyres on the road
Postby cancan64 » Thu Mar 08, 2018 10:23 am
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Re: gravel tyres on the road
Postby antigee » Thu Mar 08, 2018 10:30 am
similar pretty happy running 35mm sammy slicks - the knobs don't really interfere on sealed roads and I ride in the rain if a ride is 100% road will take pressure up to avoid any squirming with hard cornering - like sammy slicks cos' give some grip on the leaves and dirt on the less well used gravel trails in the Dandenongs - in the past used more all round touring tyres but can spin on loose and steep (no not my power!) and quite like swalbe marathons as bomb proof and predictable on loose gravel, predictable behaviour is the important thing for me and width seems an issue find 28mm tends to wash out on loose bends more than 32mm tyre, new bike meant could go to 35mm and am very happy with comfort and rolling though fashion seems to be wider and wider. Bit of a wuss descending sealed roads but no confidence problems with knobbly tyres versus 23mm of slick again its about predicability and reading road conditions like reading gravel roads - looking for washed out sections and avoiding the outside of bends. Think the gent that used to post on here a lot with extensive experience of gravel touring used to suggest Vittoria Randoneurs - which have used as well and find fine - not used Clements X'plorers (think spelt like that) but get good reviews and seem popular for road/gravel mixed - Swalbe G one's seem to crop up a lot as wellfind_bruce wrote:Every tire choice is a compromise - in the case of gravel tyres you are trading off a reduction in grip on smooth tarmac & an increase in rolling resistance for increased grip on gravel.
How much the trade off is will depend entirely on which specific tyres you are comparing, the type of tarmac etc.
I have been quite happy riding 28mm road tyres on short stretches of gravel roads in country NSW, but when I am planning to ride a reasonable distance on gravel I take a bike that can run Schwalbe smart sams.
They are comfortable enough on tarmac, but (1) I'm no racer & (2) I descend and corner slightly slower - its not just grip, they are bigger tyres running lower pressure so move around a bit more
The main reasons I switch back to road tyres are not due to any lack of confidence, but rather ridding knobbies on the road wears them out a bit too quickly & squares the tyre off which does make it harder to corner.
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Re: gravel tyres on the road
Postby Usernoname » Thu Mar 08, 2018 1:20 pm
Good timing, happy to see that. A pair of those arrived this morning from zee germans ordered 27/2. Was expecting 4 weeks. Going to fit this arvo, hoping they're unidirectional - no direction markers on side wall.cancan64 wrote:I run Panaracer Gravel Kings (43 tubeless) on my gravel bike.. have had it over 80km/hr and happy to corner at over 60km/hr... and thats loaded with bags. On the road I do like to keep the pressure up but if I was on road tyres I would have pushed it harder
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Re: gravel tyres on the road
Postby singlespeedscott » Thu Mar 08, 2018 10:28 pm
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Re: gravel tyres on the road
Postby dmwill » Thu Mar 08, 2018 11:54 pm
Currently rocking 40c Schwalbe G-Ones (in the "off season" before CX racing begins)...fantastic for gravel work (dropping them to high 20's), and still practical for the road at 60-70psi.
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Re: gravel tyres on the road
Postby singlespeedscott » Fri Mar 09, 2018 8:45 am
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Re: gravel tyres on the road
Postby lewie15 » Sat Mar 10, 2018 9:30 am
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Re: gravel tyres on the road
Postby eeksll » Sat Mar 10, 2018 12:48 pm
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Re: gravel tyres on the road
Postby richardwilliam » Thu Mar 15, 2018 9:37 am
I've been running these for the last 8 weeks. Firstly there is no puncture protection so running tubes will gather more flats.
I started with trying to run tubeless using no name rims but they were too small and no amount of tape was going to make me feel confident. I ran them with tubes until I got new rims. After a few rides I was getting a puncture per ride.I received and laced a pair of WTB i19 rims and used stans tape to seal the rims. The tyre fitted slightly loose and wasn't going to inflate with a track pump. I got some Giant branded tubeless rim tape made by 3M which is thicker and much better for this purpose.
Then fitting the Maxxis was ok on one rim with a track pump but not the other. (Tyre issues). So installed a tube and set one bead. No worries. Carefully unseated one side, removed tube, installed valve and carefully put tyre into the rim not disturbing the other side. I coated the tyre with slippery soapy water and the tyre inflated easy with a track pump.
On the road they are very good and are not slow compared to general off road tyres. They are light in weight and very supple. Off sealed roads they are fantastic on nearly everything except mud.
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