arbon super carbon superbikes carbon superbikes carbon - i-Ride
Transcription
arbon super carbon superbikes carbon superbikes carbon - i-Ride
CARCBAON RBON SUPSEURB PEIRKBEISKES CARBON CARBOSNUPSERB UPEIRKBEISKE S Carbon Superiority! How much?! You could get a car for that! We pit two 2011 carbon super bikes against the budget-conscious test crew to see if it is all flannel, or whether it’s ever worth spending this much money on a bike Words Neil Webb Photos Roo Fowler L ast month’s issue saw us testing some super cheap bikes and it got us thinking, what is it like at the other end of the spectrum? Flicking through brochures and clicking through some websites showed us you can spend inordinate amounts of your hard earned cash on a bicycle but we wanted to keep it (reasonably) realistic. What does 10 times the price of last month’s value machines actually feel like out on the road? Britain’s Olympic cyclists talk of marginal gains, the ability to change lots of small details, each one adding a fraction of a percentage until they all add up to big leaps in performance. It is no different when you spend more money on bikes. Carbon frames may all look alike to the untrained eye, in fact many have the same external matrix-like weave as an outside layer. However, inside it’s a very different story. Stiffer carbon fibres are used, ones with higher tensile strength, clever carbon lay-up — the order in which the carbon-fibre matting is laid into the mould — all adding to the cost both in terms of labour and raw materials. Even the manufacturing technique changes as you spend more. Excess resin is the carbon frame’s enemy — better moulding and lay-up techniques reduce the amount of excess ‘glue’ in the frame, making it both lighter and stronger. This all adds up to stiffer frames, better for transferring your energy into forward motion — and they’re lighter to boot! Componentry — brakes and gears — also looks quite alike despite the huge price increases. The reason is simple. Companies 48 CYCLING ACTIVE february 2011 develop technologies on their high-end equipment, before trickling it down through the range after a year or so. Styling is often a result of internal design, so it should come as no surprise that the external form of cheaper brakes, gears and cranks is similar. The difference comes from the quality of the base material — the forged aluminium; more complex machining programme to save weight; improved bearing quality; higher spec stainless steel and titanium fittings, Teflonimpregnated parts for reduced internal friction. All hidden away internally, these upgrades do make a difference. Each may be small, but — as we said — they all add up. A similar thing happens with wheels. Cheaper factory wheelsets may take styling cues from expensive brethren but spoke material, rim material — and therefore weight and stiffness — bearing quality and even internal design are of a lower specification. With wheels having the second largest effect on a bike’s ride after the frame, you should never underestimate the effect good wheels have on the riding experience. As for the rest — bars, stem, seatpost, saddle — the effect is generally one of reducing weight. You can get cheap light parts, you can get light, strong parts, you can even get cheap strong parts, but you cannot have all three. One maxim to always bear in mind when making your purchases is “cheap, light, strong. Pick two”. All this talk is irrelevant if the bikes are duds though, so we’ll pit two brand-new 2011 models against each other to see if they are worth the extra cash. february 2011 CYCLING ACTIVE 49 Bike test Carbon superbikes BMC RoadRacer SL01 £2,599.99 B MC’s website address is bmc-racing.com and this gives an indication as to the roots of the company. The RoadRacer is totally new for 2011 and BMC’s cheapest carbon frameset. system. Rather than stress the already loaded top of the seat tube, an elastomer wedge grips the seatpost, clamping with a quarter turn of an Allen key at the top of the post. A neat and very effective solution. Technology Thinking local Scanning through a BMC catalogue you can’t help but thinking they’ve gone a bit TLA (three letter acronym) mad. Thankfully behind all the marketing talk of ‘ISC’ and ‘FEM’ there is sound engineering practice. As we mentioned, the bike has racing in its DNA and nowhere is this more apparent than around the bottom bracket. Every tube that meets here is as wide as the bottom bracket shell. This means that the core of the bike is a stiff as it can be. Like the De Rosa, BMC has designed the front end of the SL01 with a tapered steerer. This larger lower diameter enables it to thicken walls in the fork crown to improve steering accuracy without adding significant weight. The additional stress this inevitably causes on the frame is displaced along the top tube and then transferred back into the seat tube in two areas thanks to the split top tube, ISC (integrated skeleton concept) design. Slotting into the seat tube is an aero post. Not only does this add a bit of wow factor, but it also uses BMC’s angle lock clamping DT Swiss is based 18 kilometres from BMC and it’s no surprise to see its wheels fitted. Using readily available parts laced in a relatively traditional style, it’s no surprise that the R1700 wheels rode like a very well made set of hand-built wheels. The mid-depth rims may not have accelerated as fast as the De Rosa’s Italian hoops, but once up to speed, these super-stiff wheels held their speed very well and matched the character of the bike perfectly. Shimano’s second-string groupset Frame material Full ISC carbon aero frame Groupset Shimano Ultegra Wheels DT Swiss R1700 Other bits Scor bars, stem and saddle Weight 16.82lb Sizes 48-60cm Size tested 54cm The aero post locks in place, avoiding stress on the seat tube collar — Ultegra — is found in its entirety on the SL01. It may share many design cues with the groupset more common on cheaper bikes (105) but there are subtle but very important differences. The primary difference is the hollow chainrings also seen on top-flight Dura-Ace. Nothing shifts better at this price, and there is absolutely no flex in these rings. Power transfer is fantastic. As you’d expect, braking and shifting is great, just that little bit smoother than cheaper parts and it will stay that way as bearings, bushes and materials are higher quality. From the moment you push a pedal in anger, the BMC’s bloodline is apparent. The deep aero post, fully supported bottom bracket and stiff wheels all combine to make the RoadRacer SL01 one of the best bikes for getting the power down, at any price. Lighter riders found it could bounce a little on rougher roads, heavier testers less so. Whatever your mass, if you like to muscle a bike over little rises rather than rising from the saddle, or find yourself pushing a bigger gear rather than spinning like a track rider, we have yet to ride a better bike for this money. All BMCs — and the RoadRacer is no exception — have a real ‘Marmite’ look about them. In other words, you either love or hate it. If the look is to your taste, you’ll get a bike that is incredibly efficient and not as uncomfortable as you might believe. Again, great wheels really add to the quality ride on the SL01 — if you’re a rider who gets the power down in the saddle there are few better bikes. “If you’re a rider who gets the power down in the saddle there are few better bikes” Comfort 17/20 Value 17/20 Handling 18/20 Wow factor 18/20 Build quality 18/20 Over-sized tubes ensure maximum stiffness OVERALL rating... 88% Cheaper Option BMC RoadRacer SL02 £1,799 LUXURY ITEM BMC RaceMachine RM01 £3,499.99 The clue is in the name, but the RM01 looks fast standing still. The 1960 Le Mans race team colourway has a special place in many men’s hearts and this is worth a look for that alone. Add in the SRAM Red/Force 50 CYCLING ACTIVE february 2011 component mix and Easton wheels and you’ve got more bike than you’ll ever need. This 105-equipped SL02 shares the frame and fork with the great performing model tested. That means you’ll get the great solid core. DT Swiss again provides the wheels and Shimano brakes and gears will do everything you ask. A great platform to upgrade as you improve as a rider. february 2011 CYCLING ACTIVE 51 Bike test Carbon superbikes De Rosa R838 Athena £2,699.99 M uch like BMC, De Rosa’s heritage is in the racing world. The company has been around a good deal longer than BMC, but this bike is brand new for 2011. At the heart colour-matched, Mizuno-made fork continues the theme. Stop and go Many companies split their ranges into race and sportive geometries, and up to a point, De Rosa has done the same with the R838, shaping the frame into what it calls Dynamic Geometry. Rather than being a dedicated tall head tube, short top tube Gran Fondo machine, the R838’s angles are designed to be able to do both. It is taller in the head tube than De Rosa’s high-end race bikes, but only fractionally. The idea behind the concept is that at this price, people need a bike that can do a bit of everything — raceable when the urge takes you as well as being comfortable crawling up Alpine passes on an annual pilgrimage. With a monocoque front end fabricated in Milan and made up of Mizuno high-modulus fibre — with a 3K visible top coat to counter knocks and scrapes — the sloping top-tubed frame looks every inch the Italian dandy. Not that it’s all mouth and no trousers though; the tapered steerer tube on the fork adds considerably to the front-end accuracy, and a The groupset fitted to the R838 matches perfectly with the bike’s heritage. Campagnolo parts have a definite look that sets them apart from their Japanese or American competitors. The sculpted curves and lack of angular edges not only offer a different aesthetic, but also importantly offer equal or better functionality. Add to that a plethora of carbon-fibre — cranks and shifters are both comprised of the black stuff — and despite sitting a theoretical rung below the Ultegra groupset fitted to the BMC, there are many in the test team that would rather flick these Italian switches. Simple one-point dropouts save weight Frame material Mizuno high modulus carbon Groupset Campagnolo Athena Wheels Fulcrum Racing 5 Other bits CSA bars stem and post, Fizik Arione saddle Weight 16.84lb Sizes 42-54 Size tested 51 The standout components, in performance terms, on the De Rosa are the wheels. The Fulcrum Racing 5s may not appear too flash from first glance, but the important traits become all too apparent once you are rolling along. While not the lightest wheels, even at this price point, the designers have clearly done their job well. The rim itself is very light. This means that it accelerates well — thankfully, the combination of paired spoke design and clever engineering mean it doesn’t lose out on stiffness. Great tyres always make a big difference too and the 280tpi Vittoria Diamante Pros here feel superb on dry roads. On the road Plenty of carbon in the Campagnolo groupset The wheels we mentioned earlier mean it picks up speed you have no right to, and the stiff bottom bracket seriously rewards energy input. Handling is so accurate you actively seek out the twistiest downhills on which to push yourself. Clever internal construction — and those great tyres — also mean it’s comfortable too. All too often race-ready bikes will beat you senseless in your quest for speed. Looking at the specification of the R838 on paper, there isn’t a huge deal to grab your attention. Carbon frame, mid-range parts, wheels second from bottom in their manufacturer’s range — it would be very easy to overlook. It is only when you get the pedals turning that you realise all that heritage and know-how has come together into something great. The R838 is truly greater than the sum of its parts. Comfort 18/20 Value 18/20 Handling 19/20 Wow factor 19/20 Build quality 19/20 OVERALL rating... 93% Cheaper Option R838 Veloce £1,999.99 LUXURY ITEM De Rosa Merak £4,599.99 True luxury here, the Merak has been piloted to countless pro victories by some very prestigious names. It oozes cool and would be the undoubted star on any ride. You can 52 CYCLING ACTIVE february 2011 be happy that you’d be riding a bike that rides even better than you do. Much like the BMC’s lower-priced alternative, this R838 shares its chassis with the tested model. The great handling and Italian looks remain thanks to the Campagnolo Veloce groupset, only the wheels are a real downgrade. At least this gives you something to dream about. “When you get the pedals turning you realise all that heritage and knowhow has come together into something great” february 2011 CYCLING ACTIVE 53 Verdict W and you like the big gears — this Swiss puppy is great. That leads us nicely on to our Italian. Heritage and national pride drip from the R838 and it’s easy to imagine it lazily leant against a bar wall in a town square in Umbria. The best news though is that it’s equally at home outside a pub on the moors or a cafe in Surrey. When it’s being ridden, you can imagine you’re anywhere. Light wheels and tyres can make even the portliest rider dream of dancing on the pedals up Alpine climbs. Rarely do we get to ride a bike that lets us forget where we are and dream so much. In case you hadn’t guessed, the De Rosa is worth the money — and then some. You certainly get what you pay for. e set out originally to see if the extra cash makes a difference to the riding experience, or whether it’s just a case of flash Harrys with a load of posh gear. A more convincing argument for the former we could not have found with the two bikes here. Both were a huge jump in performance over the usual Cycling Active fare. And so they should be — they are more than twice as expensive as the machines we usually feature. That said, it doesn’t mean that even the least experienced rider wouldn’t benefit from riding bikes like these if they have access to them. A ride of “Light wheels can this quality would flatter even the newest of riders. make even the If you’ve read the whole test, you portliest rider can’t fail to have noticed how impressed we were with the power dream of dancing transfer on the BMC. While this may seem the preserve of the racer and no |on the pedals up one else, the reality is quite different. Alpine climbs” On a sportive, you’ll be climbing and any flex is wasted effort. Riding with friends, there is always a little sprint every now BMC RoadRacer De Rosa R838 and then for a village SL01 Athena signpost; even riding on your own in the lanes it’s relevant. A solid drivetrain can mean the difference between finishing a ride tired or fresh and ready to do other things with the rest of your day. That said, if you do dream of racing 88% 93% CARBON SUPERBIKES CARBON SUPERBIKES Money Talks Only three or fours years ago, £4,000 would have got you a pro’s machine, these days, Tour de France level exotica will set you back close to double that. We’ve had inflation, but we have also had massive currency devaluation (Sterling is worth 35 per cent less against the dollar, even worse against the euro — and let’s not talk about the yen). Add to this the increase in oil costs and the impact on shipping pricing and the overall effect is huge. What this means for the cyclist is the costs of anything imported, or invoiced in a foreign currency, has jumped in price at four or five times the level of inflation. Bikes of this level may well have been sub-two grand a couple of years ago, but this does not detract from their performance, relative to today’s competition. No one in the bike industry has suddenly got rich! C A D B H E G F angles De Rosa BMC A 73° 73° B 73° 73.5° C D 55.5cm 14.5cm 55cm 14.3cm E 4.3cm 4.3cm F G H 43cm 40.7cm 75.5cm 98.9cm 40.8cm 75cm Contact details BMC www.evanscycles.com De Rosa www.i-ride.co.uk february 2011 CYCLING ACTIVE 54