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|04-26-2016, 08:50 AM||#1|
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Review Metzler Roadtec 01 tyres 240 250 per pair
The best thing about Metzlers new sports touring tyre Its impressive performance in changeable conditions
The new Metzler Roadtec 01s
REPLACING the Roadtec Z8 Interact, the Roadtec 01 is Metzler’s new sports touring tyre. It’s aimed at naked and sports bikes and is designed for riders who do a lot of commuting and touring but still want dependable performance on high and low friction surfaces (like a cobbled street).
Metzler presumes you will be riding over most surfaces both dry and wet when you tour, and they tell me they’ve factored in the grip required for riding across high and low friction surfaces in the wet and dry. They also tell me the new tyre boasts 10% increased longevity over the old Z8 Interact, and add that when they got out their clipboards to produce the Z8’s replacement, they wanted to make a tyre that offered greater performance and versatility in all conditions.
I tested the them on the road, round an oval speed circuit, on wet cobbles, on a dry test track with various cambers and different radius turns, and on a soaked test track. Here’s what I think.
The roads near Frankfurt offered the perfect testing ground and the Roadtec’s neutral manner came through on a range of bikes including a Triumph Street Triple, the Yamaha FJR1300 and the BMW R1200GS, which all effortlessly rolled in and out of corners.
On sweeping A roads and a number of smaller B roads and lanes (some of which were very bumpy and only wide enough for bikes), the Roadtecs stayed planted and assured, and even over the worst surfaces, didn’t slip once.
Hitting the brakes really hard on every ABS-equipped bike resulted in the tyres bringing me to a speedy, controlled stop. Again this was on the kinds of surfaces we have in the UK – covering everything from perfect roads to dusty and worn out tarmac, cobbles and recently laid surfaces with remnant gravel.
I felt immediately comfortable and confident on the tyre and it encouraged me from corner to corner, with my speed and lean angle gradually increasing, even on the large touring bikes.
Braking hard for corners, the front felt planted and never gave any indication it would give up. I always experiment carrying a bit of front brake into the bends to see how it feels, loading the front edge under braking, and the front Roadtec 01 remained stable. Dabbing the back brake or trailing in hairpins never created any moments either.
The rear hoop is dual-compound, with the middle section made up of 20% silica designed to aid longevity and stability under acceleration. The shoulders are softer, with a 100% silica compound for cornering grip. The front consists of a single 100% silica compound.
The area of contact with the surface is now wider and shorter which offers more stability and less wear, says Metzler.
I’m not talking about the cricket ground in south London, but a banked track that allows you to test the tyre at high speed in a controlled environment, which is especially useful in Germany where the police are stringent when it comes to road violations.
We were briefed to keep to a limit of 125mph to avoid being too competitive, but that rule stuck for about one lap until everyone started trying to go faster and faster. I rode a range of bikes on the oval, including a BMW S1000RR, on which I reached speeds of around 180mph, with the bike feeling planted and stable at all speeds
The wet test track
I left my waterproofs at home on the last launch and I paid heavily for my mistake. This time they were the first thing I packed and it paid off because I while testing out Metzler’s new Roadtec 01 tyres, I got the chance to ride on a wet test circuit at Bosch’s Frankfurt testing facility.
The wet test was designed to measure both the stopping distance in the wet and the level of grip.
The Roadtec 01 has a new tread pattern that is part of the structure so it offers better claimed water drainage and dispersal, with less stress on the tyre and Metzler also claims that it helps to warm the tyre.
At its wet test facility, Bosch has a series of lanes with different surfaces, and wet and dry options. I rode on wet cobbles on bike equipped with sophisticated measuring systems including wheel speed sensors and GPS.
I did three runs on the Z8 and then three runs on the Roadtec 01. I reached 38 mph then applied the front and back brake as hard and fast as I could. At first I was obviously reluctant to slam on the brakes, but soon realised that I could do just that and on average the new Roadtec 01's stopping distance is three meters less, which is pretty incredible, and could mean the difference between hitting something or avoiding a collision.
The wet/dry track test
I tried the tyres on two different test tracks at Bosch’s facility in Frankfurt - one was dry and offered the chance to try handling at speed, while the other was set up half wet and half dry, to simulate being caught out in a shower.
I felt nervous hitting the wet section and just as nervous leaving it because I although I was hitting dry track, the tyres were still cold and wet. This seemed to faze me more than the tyres which were smooth and stable, and gave me unexpected levels of grip in these simulated changeable conditions, more so than I would ever dare push for on the road on my own bike. I started pushing harder, leant further and braked harder and later on both the wet and dry sections. After a few laps although still cautious I was happy dragging a knee through the corners on the wet track.
By the time I got on the dry faster test track riding various naked bikes I was more than happy riding as quick through all the technical and sweeping sections of the track with the sort of lean angle I would expect from a sportier tyre.
I think the Metzler Roadtec 01 is a very competent all-round tyre, and based on the reduced stopping distances we got in the wet, is certainly a step on from the Z8 Interact.
Tested: Metzler Roadtec 01 tyres
Price: £240 - £250 a pair
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