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The Atherton S.170 is available to order directly from Atherton Bikes, initially in limited numbers. The brand says that production numbers will be low for at least the first three months while production capacity increases.

Utilizing the double lap joints the S.170 is bonded in a very similar way to the A-Series mountain bikes. It also means that they can continue to offer a wide range of sizing, and riders can easily use the online fit calculator to choose the perfect size from 12 different options.

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The cat is now well out of the bag and we no longer need to speculate because the Atherton S.170 is here. The S.170 is a far more accessible range from a price point of view, in comparison to its carbon-framed siblings like the Atherton AM.170 starting at $7,355 / £6,950 / €6,776 and topping out at $8,678 / £8,200 / €7,995.

The three full build prices are as follows: Build One featuring SRAM X01 Eagle and RockShox suspension is $6,399 / £5,999 / €5,849. Build Two with SRAM GX gears and Fox suspension is $5,865 / £5,499 / €5,359, and finally, Build Three with SRAM GX gears and RockShox suspension is $5,119 / £4,799 / €4,679. Again, US and EU prices do not include tax and shipping.

The S range benefits from all the learnings to date on geometry and the DW suspension platform. Combined with four years of racing and feedback from customers. It has a mixed wheel (mullet) configuration and 170mm rear travel with 180mm upfront and shares a similar geometry to the AM.170. Dave Weagle’s DW6 suspension platform gives way to a simpler DW4 version which offers the same top-notch performance as DW6 but Atherton says is simpler and easy to maintain.

The head angle is 63.6 degrees and the seat tube angle varies between sizes and is from 76.6 and 78.6, as do the chainstay lengths from 430mm to 440mm. The reach starts at 405mm going up to 515mm in 10mm increments over the 12 sizes available.

Made entirely from aluminum it means the S.170 is a far more wallet-friendly model with builds starting at $5,119 / £4,799 / €4,679 and features all the sizing, strength and performance benefits the brand has learned over the five years of production. It also features the Atherton Bikes established preferences on geometry and ride feel with the same level of perfectionism found across the Atherton range built in Machynlleth, Wales

The frame of the S.170 is the obvious starting point here and is made from Aluminum grade 7075 with CNC-manufactured lugs which brings a host of benefits to riders. Firstly, 7075 alloy has a superior fatigue strength, and Atherton Bikes says having seen many competitor frame failures at Dyfi Bike Park, using Aluminum grade 7075 was a huge deal. It's not typically used in bike manufacture, as it can’t be welded, but offers 70 percent higher fatigue performance and 70 percent higher ultimate tensile strength (UTS) than weldable alternatives such as 6061. The finish is also anodized to protect the tubes and lugs from corrosion.

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The S.170's lug and tube construction also means it's optimized for strength, has greater impact durability and importantly a lower cost. Of course, there is a slight weight penalty compared to its carbon-framed siblings with the S.170 frame claimed to weigh in at 4.1kg without the shock, and as a comparison to the Atherton AM.170 which comes in at 3.5kg.

Luck might have played a part for Politt too, who lost the sprint for second and third but was later elevated to the podium. "I was initially disappointed to finish fourth right after the race, but when I got to the bus, I found out I was third. It's special to be on the podium here, my second time in a Monument after Paris-Roubaix. We deserve this as a team, with four of us in the second group; I'm proud of that," said the German from UAE-Team Emirates, who was uncertain about the sprint situation. "I was gaining speed and had to brake a bit. I feel sorry for Matthews, but it's a decision made by the jury."

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Michael Matthews delivered his best performance yet at the Tour of Flanders on Sunday, but his achievement turned bittersweet as the day concluded with tears. The Australian cyclist from Jayco-AlUla pushed through to a third-place finish on sheer determination, only to be later demoted to eleventh for veering off his sprint line. This shift elevated Nils Politt to third place.

Unlike the A-Series (Additive) there is no custom option on the S.170 and it comes in three fixed builds (featured below) plus a frame-only option from the top-of-the-line featuring a RockShox RS Ultimate Coil shock and a SRAM X01 drivetrain to the lowest price model that has a RockShox Deluxe Select shock and SRAM GX spec. The frame-only choice also includes a Fox DHX2 coil shock, and I had a look over the other eye-catching features of the S.170.

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Paul Brett joined BikePerfect as a staff writer in 2022. He has been an avid cyclist for as long as he can remember, initially catching the mountain biking bug in the 1990s, and he raced mountain bikes for over a decade before injury cut short a glittering career. An award-winning photographer, when not riding a bike, he can be found at the side of a cyclocross track or a downhill mountain bike world championship shooting the action. Paul was the founder, editor and writer of Proper Cycling magazine, and he's traveled the world interviewing some of the biggest names in mountain biking and writing about some of the biggest cycling brands.

Atherton Bikes teased us with a new addition to its highly successful mountain bike range back in January. The brand is celebrating five award-winning years of success, which includes Charlie Hatton's World Championship title, World Cup wins for Andi Kolb, and a return to the World Cup top step for Rachel Atherton. As part of the ongoing celebrations, the brand released a fairly secretive image of Dan Atherton at Dyfi Bike Park riding what appeared to be a prototype alloy version of its big mountain enduro MTB, and it had us guessing just what the latest model from Atherton Bikes would be...

Frameset only with Fox DHX2 Coil shock is priced at $2,985 / £2,799 / €2,729 and it's worth noting that US and EU prices do not include tax and shipping which is still TBC.

Available in three builds and prices starting at under five grand, the S.170 shares similar features to its award-winning carbon-framed siblings

Luca Mozzato, who sprinted against Matthews for Arkéa-B&B Hotels and finished second, immediately stated he found the disqualification unfair. "Sometimes you deviate from your line in a sprint; that's just part of sprinting. I thought it was fairly mild," said the Italian, who was undeniably the day's surprise. "I would have been happy with top fifteen or top twenty, and maybe, just maybe, a top ten. But second is incredible. I might have had the best day of my life in terms of how I felt on the bike. I was also lucky because I was poorly positioned on the first ascent of the Kwaremont and had to bet that others would close the gap. That gamble paid off in the end. Sometimes you need a bit of luck."