santa cruz nomad carbon
Transcription
santa cruz nomad carbon
santa cruz nomad carbon first ride Giant Talon 0 Battle Cruzer 2011 special santa cruz nomad carbon £2499 It’s an eyewatering price for frame and shock only, so does the carbon Nomad justify the money with its performance? scott scale 899 £7999 It’s the lightest mountain bike you can buy and is aimed firmly at racers, but can this carbon thoroughbred cut it on the trail in terms of fun and comfort too? After a carbon conversion, can the slimmed down Nomad still go it alone on the trail and take the big hits like its predecessor? Astronomic price aside, this is the best carbon fibre hardtail you can buy — bar none.” Words: Guy Kesteven Photos: Russell Burton lapierre x-control 310L £1850 Does the shorter travel cross-country little sister of the Zesty and Spicy trail bikes live up to Lapierre’s excellent reputation? revolution triad ds £999 A no-nonsense own brand offering from a UK bike shop. Will it prove to be inspirational or merely dependable? santa cruz nomad carbon T he Nomad was one of the first true do-anything all-rounders and it’s still among the best around. Now the continuing Santa Cruz carbon fibre revolution has taken the Nomad’s performance to a whole new level for those who can afford it. The facts The carbonisation of the Nomad comes after Santa Cruz’s work on the Blur XC, Blur LT and Tallboy frames. As such, it uses the same hand-formed single-piece front end and two-piece seam-wrapped rear swingarm construction. It’s certainly not the cheapest way to make 14 September bikes, but it does mean the builders can get right inside the mould for maximum carbon piece lay-up accuracy and compaction. The latter is handy because more pressure means less weak bonding resin is used, and the overall result of the process is a stronger, more consistent build quality. The deep flowing lines include a massive 6.5in-deep front end section behind the untapered, 180mm travel fork-compatible 1.5in head tube, and a top tube that’s 3in deep at the rockerlink pivot. Curved webs at the front of the rear subframe and another web ahead of the drop-outs reinforce potential weak points. Meanwhile, the top swing link is a deep full carbon knuckle. The result is a frame that’s just over a pound lighter than the alloy version, weighing 6.1lb (2.8kg) for a medium, but 15-30% stiffer, depending how and where you measure it. If you’re afraid of going hard on a carbon bike, fear not here – the thicker walled down tube face and chainstays include aramid (Kevlar) fibres for increased impact resistance. Not only that, but the armoured sections on the chainstay and down tube belly are replaceable, while an alloy lower link grants better rock resistance and confined space strength as well. As head designer Joe Graney says, September 15 santa cruz nomad carbon The Nomad Carbon shares the same proven geometry as its alloy ally tester says... I struggle to find the sense in many carbon versions of big trail bikes. They aren’t much lighter or stiffer and are vastly more costly. Yet the Nomad Carbon is not only light enough to make the cost worthwhile but also so stiff it puts already benchmark performance into a new league for riders who are good enough to make the most of it. Guy the designer says... We quiz design chief Joe Graney about the Nomad Why buy the carbon Nomad compared to the alloy one? It’s a pound lighter and there’s a noticeable stiffness increase, which makes the bike track and handle better. The material also dampens small vibrations, which increases control and comfort. Just what can I expect the frame to survive? Is it Whistler, Alps, or short course downhill-proof? It’s actually more capable of full-blown DH now, while losing weight makes it easier to climb. Using angle-adjusting headsets and a big fork, you can slack it out to handle major steepness. We have the most painstaking manufacturing process and unbelievable amounts of dedicated tooling involved to make these frames. Why didn’t you use a modular drop-out system or a thru-axle on the rear? Modular drop-outs can cause creaking and alignment problems, add weight and cost and we were unable to quantify any performance advantage in our labs. We tested prototypes with different thru-axle systems, and didn’t find a stiffness increase that would justify having to buy new wheels. The Nomad is the stiffest frame using a quick release axle we’ve ever tested. at a glance Price £2499 (frame and shock) Top tube length 23.8in Chainstays and down tube are Kevlar reinforced for impact resistance Are alloy bikes now the second-rate option? Aluminium Nomads offer the same suspension, geometry and can be built with the same kit and fork options, at a considerably lower price. Big hills and big rocks are where the new Nomad really shines Seat tube length 18.5in Head angle 67° “This frame is very, very strong. It was the Nomad Carbon that convinced us we can make a carbon V10 frame that would laugh at the World Cup courses.” For full versatility, the carbon frame gets serviceable collet bearings, ultra light titanium fixtures, big tyre clearance, ISCG chainguide tabs and slotted guides for a remote control droppable seat post. The potential of this frame does place a massive amount of pressure on the componentry, though. For a start, we’d bin the thin-walled Kenda tyres, because they’re likely to pop before you’ve even pushed the suspension through to full travel. Accurate suspension tuning is vital too – unless you really know your onions, get someone who does to sort out the various adjustments of the DHX shock. The Nomad certainly wants a wider set of bars than the cross-country (XC) width Easton bars too, which normally feel fine but seem seriously weedy here. The feel That last detail alone is a big clue as to how the Nomad Carbon feels. It’s stiff. Immediately, obviously, dramatically, ‘noticeable as soon as you put your hands on the bar’ stiff. That last 16 September Seat angle 71.5° The 1.5in head tube will take up to 180mm travel forks Chainstay length 17.4in Wheelbase 45in Bottom bracket height 14in Sizes S, M, L (tested), XL Weight 13.2kg/29.1lb A carbon fibre top linkage saves weight comment sounds dumb, but it’s not as daft as it seems. Ride enough bikes and you can often pick up the inherent resonance and rigidity of a frame just by the way it feels with one hand on the bar. And with the Nomad Carbon, it feels like you’ve just shaken hands with a block of granite. All that compressed carbon and frame depth creates a chassis that’s so stiff we had to spend a lot more time than usual tuning the shocks to feel smooth, rather than relying on frame flex. While it feels almost intimidating when you’re just cruising along flowing trails, that rigidity comes into its own when you kick in the power or hit a gradient and raise your game. Steering accuracy is outstanding to the point where you have to Frame Monocoque carbon, 160mm travel Summary Fork RockShox Lyrik 2-Step Air 160mm travel Shock Fox DHX 5.0 air 160mm travel Wheels DT EX500 Tyres Kenda Nevegal DTC 2.35in Cranks Truvativ Noir carbon triple chainset 42/32/22 Gears SRAM X0 shifters, XT/X0 front/rear mech Brakes Avid Elixir CR with 185/160mm front/ rear rotors Other stuff Easton MonkeyLite XC 685mm low riser bar, Thomson 70mm stem, KS900 dropper seat post, WTB saddle Contact www. santacruzbikes.co.uk It’s still a big hunk of a bike once it’s fully built, but there’s no sense the extra suspension is losing you accuracy or ground speed. In short, you can rip the Nomad Carbon across country like a much lighter bike. Attacking climbs and contesting summit sprints are its default setting, unlike the attitude of some bigger bikes. deliberately steer slightly wide of apexes and start corners fractionally late until your reactions recalibrate. Counter-intuitively, the sharpness and trail vibration also decrease the faster and harder you go, because the carbon lay-up sucks out the sting that alloy bikes tend to amplify. The harder you push the bike, the more it justifies its increased cost too. Thanks to the stiffness, the big Lyrik fork is also totally integrated into the ride, feeling more like RockShox’ Revelation than the proper big forks that normally dominate heavy-set trail bikes. There’s no sense that the tail, or rather nose, is wagging the dog either and the carbon hindquarters are equally rigid and responsive. Carved lines are clinically sharp and the power snaps down dramatically as the Virtual Pivot Point (VPP) linkages dig in under torque. The VPP action is accentuated too, which is either a good or bad thing, depending on taste. It’s great if you like suspension that sucks up square edges spectacularly, stiffens when you stamp on the pedals and don’t mind some kickback if you keep the power on across rocky or rutted sections. It’s not so hot if you want a more neutral ride that rolls along passively whatever you’re doing. Either way, there’s no arguing that the increased rear end stiffness and the pound less of frame weight make a significant difference to acceleration, ease of altitude gain and overall agility. We spent nearly all our time on the Nomad Carbon mashing the pedals and muscling the bars as hard as possible through the singletrack. Not only did bracing ourselves against the stiffness feel great, but we found that keeping pole position was vital. Otherwise, you’ll be on the brakes trying to avoid riders ricocheting around on lesser bikes, rather than having the space to rip through turns in a roar of scrabbling rubber and blast through boulder fields like they’re a gravel drive. ★★★★★ “An outstandingly stiff and capable big-hit, all-day bike worth the price for riders good enough to exploit it.” the contenders Trek Remedy 9.9 £5000 It looks similar in travel and purpose on paper, but the lighter, shorter forked and steeper angled carbon Remedy is much more a cross-country bike in terms of character and capability. Contact www.trekbikes.com/ uk/en Specialized Enduro S Works £5000 The lightest 160mm travel bike you can buy, with superbly sorted geometry and impressive frame stiffness. The spiky, uncontrolled Specialized Future Shock fork is a real letdown though. Contact www.specialized.com Scott Ransom 10 £4600 The original big travel carbon bike, the Scott Ransom is just about to be replaced by the new Genius LT, but it set the standard for all-day rideable yet Alp-proof bikes and it’s still impressive today. Contact www.scott-sports. com September 17