Giant Fully Commited to 27.5 for 2014

27.5 News

Marianne Vos of the Rabobank-Liv/giant team, the current world and Olympic champion on the road, helped develop the Obsess Advanced. She rode a prototype version at several World Cup events this year as she begins her bid to race cross-country at the next Olympic Games.

From the Manufacturer: Liv/giant 27.5 Best of All Worlds.

Liv/giant is dedicated to providing women with the best possible off-road cycling experience. The evolution of the 27.5-inch wheel size has led Liv/giant’s engineers and athletes to one conclusion: 27.5 is the optimal wheel size for all riding styles and levels of female riders. It perfectly combines the most desirable attributes of 26 and 29-inch wheels, giving you a ride that truly delivers the best of all worlds. This year Liv/giant’s entire off-road line-up, from sport-level to elite, features bikes with 27.5-inch wheels.

In comparison to 26 and 29-inch wheel size options, our research shows that 27.5 offers the ideal combination of light weight, efficiency, and control for female riders. Here are the factors that make this wheel size especially ideal for women.

1. Lighter Weight
The lighter the bike, the less energy and effort you have to exert. Long rides become easier, and you ride faster. 27.5-inch wheels are lighter than 29-inch, and they allow Liv/giant to design lighter frames. Liv/giant’s elite athletes appreciate the weight savings offered by 27.5, as evidenced by race wins on their 27.5 bikes. You’ll appreciate the lighter weight too!

2. More Efficient
The ability for 27.5-inch wheels to easily roll over obstacles means that you can ride technical trails with less effort and more confidence. Also, 27.5-inch wheels accelerate more quickly than 29-inch, meaning you exert less energy to get rolling. Quick acceleration increases your ability to maintain momentum in rough terrain, up hills, or across flats.

3. Better Control
The optimal tire-to-ground contact patch provided by 27.5-inch wheels improves cornering, acceleration and braking ability. And when combined with Liv/giant’s 3F women’s specific and 27.5-optimized frame geometry, the 27.5-inch wheel size delivers better control than bikes with 26 or 29-inch wheels. Also, because these 27.5-optimized frames allow for excellent standover clearance and a shorter wheelbase, it’s easier for female riders to find their ideal bike fit.

These three factors combined create the best possible ride quality and bike fit for female riders. The inherent light weight and efficiency of 27.5 gives you the energy to elevate your riding. And 27.5 allows Liv/giant to design our 3F frame geometry to better balance female riders of all heights over the bottom bracket and front wheels for unparalleled control. It is this balance that truly defines the Liv/giant riding experience.

Obsess Advanced

If XC is your game, and speed is your obsession, this 27.5-inch singletrack machine is your path to the podium.

this elite-level XC race bike is the world’s first women’s-specific carbon fiber hardtail with the optimal new 27.5-inch wheel size. the frame is handcrafted with Advanced-grade composite material, and purposefully engineered to maximize the advantages of 27.5—light, agile and maneuverable, yet still super stable on technical trails. its technologies include the overdrive 2 steerer tube and 15mm front thru-axle for pinpoint steering precision. it has a Powercore bottom bracket for better pedaling efficiency, plus clean internal cable routing and an integrated seat clamp to give you an edge on the competition and terrain.

Technology:

  • OverDrive 2: Designed to offer unprecedented front-end steering performance, the system’s oversized headset bearings (1 1/2” lower, 1 1/4” upper) and tapered steerer tube work in harmony to provide supreme steering stiffness.
  • PowerCore: A massively oversized bottom-bracket/chainstay area features a fully integrated, 92-millimeter-wide bottom-bracket design.
  • 27.5-Specific Geometry: XC frame geometry tailored for 27.5-inch wheel size Maestro suspension bike to optimize control, acceleration and stability.
  • Liv/giant 3F Geometry: To provide female riders with ideal balance and bike fit, 3F geometry features shorter toptubes and slightly taller headtubes.
  • Internal SeatPost Clamp: Lightweight, all-internal seatpost locking mechanism provides clean, confident clamping force just where it is needed most.
  • Internal Cable Routing: Frame features unique internal cable porting for sleek, uncluttered appearance and performance.
  • 142/135mm Convertible Rear Thru-Axle Design: 142/135mm convertible rear dropouts let riders choose which format works best for their needs.

Pricing:

  • Obsess Advanced 1: $4,125
  • Obsess Advanced 2: $2,775

Lust Advanced

Spark a singletrack love affair. Quick, agile, super confident on all types of terrain, from steep climbs to daring descents.

The world’s first women’s-specific carbon fiber full-suspension bike with the new 27.5-inch wheel size gives you the upper hand on technical XC terrain. the combination of Advanced-grade composite frame material and Maestro suspension makes it equally capable in all-out race efforts or all-day trail epics. Liv/giant’s women’s geometry is optimized for 27.5-inch wheels, making it perfectly balanced for women trail riders. And the technologies—including an overdrive 2 steerer tube, 15mm front thru-axle, Megadrive downtube and Powercore bottom bracket—lend it a fast yet stable feel on any XC terrain.

Technology:

  • OverDrive 2: Designed to offer unprecedented front-end steering performance, the system’s oversized headset bearings (1 1/2” lower, 1 1/4” upper) and tapered steerer tube work in harmony to provide supreme steering stiffness.
  • PowerCore: A massively oversized bottom-bracket/chainstay area features a fully integrated, 92-millimeter-wide bottom-bracket design.
  • 27.5-Specific Geometry: XC frame geometry tailored for 27.5-inch wheel size Maestro suspension bike to optimize control, acceleration and stability.
  • Liv/giant 3F Geometry: To provide female riders with ideal balance and bike fit, 3F geometry features shorter toptubes and slightly taller headtubes.
  • Maestro Suspension System: Utilizes four strategically positioned pivot points and two linkages that all work together to create a single floating pivot point for the most active, efficient and independent system on the trail.
  • Internal Cable Routing: Frame features unique internal cable porting for sleek, uncluttered appearance and performance.
  • 142/135mm Convertible Rear Thru-Axle Design: 142/135mm convertible rear dropouts let riders choose which format works best for their needs.

Pricing:

  • Lust Advanced 0: $8,050
  • Lust Advanced 2: $3,500

Lust

Unlock the secret to XC bliss: Less weight plus more control equals more confidence, speed and smiles.

With the one-two punch of the fast new 27.5-inch wheel platform and Liv/giant’s 3F design philosophy, Lust is the ultimate XCall-rounder. The frame, a lightweight, hydroformed ALUXX SL alloy work of art, features plenty of stand-over height for confidences on technical trails. And it has all the right angles to make the most of its smooth and agile 27.5 wheels. Add 4 inches of smooth Maestro suspension technology plus a 15mm front thru-axle for front end stiffness and control and it’s the perfect choice for XC rides ranging from marathon races to after-work trail rides.

Technology:

  • OverDrive 2: Designed to offer unprecedented front-end steering performance, the system’s oversized headset bearings (1 1/2” lower, 1 1/4” upper) and tapered steerer tube work in harmony to provide supreme steering stiffness.
  • PowerCore: A massively oversized bottom-bracket/chainstay area features a fully integrated, 92-millimeter-wide bottom-bracket design.
  • 27.5-Specific Geometry: XC frame geometry tailored for 27.5-inch wheel size Maestro suspension bike to optimize control, acceleration and stability.
  • Liv/giant 3F Geometry: To provide female riders with ideal balance and bike fit, 3F geometry features shorter toptubes and slightly taller headtubes.
  • Maestro Suspension System: Utilizes four strategically positioned pivot points and two linkages that all work together to create a single floating pivot point for the most active, efficient and independent system on the trail.
  • ALUXX SL Aluminum: From raw materials in Giant’s own forging facility, this proprietary alloy features 30 percent additional stiffness over traditional 6061-series aluminum, while also reducing overall weight.

Pricing:

  • Lust 1: $3,200
  • Lust 2: $2,450

Intrigue

Ready to rule more technical trails? Take your skills to a new level with this all-new 27.5-inch phenom.

Created specifically for women with Liv/giant’s 3F design philosophy, intrigue is perfectly balanced to improve both climbing and descending. The lightweight ALUXX SL aluminum frame features special women’s-specific geometry, engineered to optimize the light, agile and super stable 27.5-inch wheels. And with 5.5 inches of plush Maestro suspension travel, you’ll have more control—and fun—on technical trails. Additional features include the tapered overdrive 2 steerer tube and 15mm front thru-axle for more precise steering, plus special cable routing for a dropper seatpost so you can dial in saddle height, on the fly, while riding varying terrain.

Technology:

  • OverDrive 2: Designed to offer unprecedented front-end steering performance, the system’s oversized headset bearings (1 1/2” lower, 1 1/4” upper) and tapered steerer tube work in harmony to provide supreme steering stiffness.
  • PowerCore: A massively oversized bottom-bracket/chainstay area features a fully integrated, 92-millimeter-wide bottom-bracket design.
  • 27.5-Specific Geometry: XC frame geometry tailored for 27.5-inch wheel size Maestro suspension bike to optimize control, acceleration and stability.
  • Liv/giant 3F Geometry: To provide female riders with ideal balance and bike fit, 3F geometry features shorter toptubes and slightly taller headtubes.
  • Maestro Suspension System: Utilizes four strategically positioned pivot points and two linkages that all work together to create a single floating pivot point for the most active, efficient and independent system on the trail.
  • ALUXX SL Aluminum: From raw materials in Giant’s own forging facility, this proprietary alloy features 30 percent additional stiffness over traditional 6061-series aluminum, while also reducing overall weight.
  • 142/135mm Convertible Rear Thru-Axle Design: 142/135mm convertible rear dropouts let riders choose which format works best for their needs.

Pricing:

  • Intrigue 1: $4,250
  • Intrigue 2: $2,775

Tempt

Smooth out of the trail. A light, stable 27.5-inch wheel design makes this XC bike your ally for off-road adventure.

With an agile aluminum frame featuring geometry designed specifically for women, plus a suspension fork and powerful disc brakes, tempt can take you from your first dirt foray to more advanced singletrack adventures. the all-new 27.5-inch frame design, featuring plenty of confidence-inspiring stand-over height, gives you just what you need to go farther and faster.

Technology:

  • Gusset-Free Design: Giant pioneered and perfected the use of radically shaped tubesets that provide all the strength and stability of gusseted tubes without added material and welds.
  • 27.5-Specific Geometry: XC frame geometry tailored for 27.5-inch wheel size Maestro suspension bike to optimize control, acceleration and stability.
  • Liv/giant 3F Geometry: To provide female riders with ideal balance and bike fit, 3F geometry features shorter toptubes and slightly taller headtubes.
  • ALUXX SL Aluminum: From raw materials in Giant’s own forging facility, this proprietary alloy features 30 percent additional stiffness over traditional 6061-series aluminum, while also reducing overall weight.
  • Optimized Standover Height: A result of Liv/giant’s 3F Geometry applied to this Sport-Level bike, Optimized Standover Height allows for more rider clearance and increased rider confidence.

Continue reading for the Giant and Liv/giant 27.5 Official Press Releases.

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About the author: Gregg Kato

Gregg Kato studied journalism and broadcasting in college while working many different jobs including deejaying, driving a forklift and building web sites (not all at the same time). Kato has been the Site Manager of Mtbr.com for over 12 years and enjoys riding local Santa Cruz trails. Besides being an avid mountain biker, he is also a motorcycle fanatic. Two wheels, one Passion.


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  • Luiggi says:

    Yeah, right. All the major players needed to segment the market and force us to upgrade/update our bikes because the bikes/frames were so good that we were all happy with our current bike, and nobody was buying a newer model. And yet they want to convince us it was for our own good. I’ve tried four 650b bikes, and in my humble opinion they aren’t as playful and nimble as my 26ers. Now if I’d like to upgrade my frame for a newer model, I’d have to buy a new set of wheels, a new fork, etc.

    Cool infomercial, but I still believe this isn’t in our best interests, but in the commercial ones (i.e. maximize revenues) of the bike industry.

  • John Park says:

    Wheel diameter has no bearing upon acceleration. If the rim and tire are the same weight the larger wheel will also be rotating slower; the effects cancel out. In order to get to the same rpm will take more energy, but that’s not the comparative case here.

    If you use the same type of rim and tire, the net overall [rotating and non rotating bike plus rider] acceleration loss between 27.5 and 29 is about .15% or one six hundredth difference. Plus the bike will be about a third of a pound heavier.

    There may be valid reasons for going 27.5 but noticeable differences in acceleration are hard to measure.

    • Ryan says:

      odd, since 29ers are noticeably more sluggish.

    • Chris says:

      Wheel diameter makes no difference to acceleration?? That’s flat out wrong mate, I’m sorry.

      A smaller diameter wheel in effect changes the “final drive ratio”…. and 1.5″ most certainly would make a difference.

      But dont take my word for it, just google “rolling diameter” and its effects on acceleration- and you will quickly find a lot of motor racing references proving my point. 1″ bigger on a car makes a difference…. so on a bike with only your own 2 legs, its even more noticeable.

  • the-one1 says:

    “superior technology”. WTF is that suppose to mean. It’s just a wheel of a larger diameter. The wheel was a “superior technology”, everything after that is just fluff.

  • Rideordie says:

    What the fail to mention is that all the slight differences in percentage points we because 650b isn’t really a 27.5 more like 27.125 making there arguments moot. Imma hold out for the 31ers. Now that’s a monster truck mobbing down the trail.

  • Rideordie says:

    Predictive text arrrrr what they fail… points are there their

  • EagleScout says:

    I did notice a BIG difference from 26 to 29. The 29 doesent handle well in twisty sections, Its seems to make me go slower. But it also seems like I can climb up hills and ride rock gardens with less effort on a 29.

  • Brooks Yancey says:

    What a $%^&*#@ load. 2% here, 1.5% there. Here’s a stat for you, 95% of riders out there with suspension forks don’t even know what their settings are, they just ride. All of this sounds like an attempt to over hype bikes that will ride poorly.

    • Dr Dog says:

      I tried a 650B frnt wheel with good results over 3 years ago. Also found that many cross country racers were secretly using this combo on some courses with great effect (some in spite of sponsors not having a 27) .
      Three years later I have given away a 29er, only will ride my 26 as an indoor trainer!
      On my third 27.5 conversion, & find them completely superior to the original designed for 26, except climbing on pavement!
      Finally as Scott won almost every 2012 cup race with a 650 (they did-NOT even have a 650 production bike at the time!) & many other XC wins later (Sea Otter 2013), I can have a 5″ travel bike made for 27.5!!!
      Ride what you like, but I will never ever ride a 26er off-road again!

  • Acupunk says:

    Here is what it comes down to: Ride the bike. If it fits you and “disappears” underneath you then buy it. Who cares what wheel size? I compared the Santa Cruz Bronson, the Tallboy LTc and Tallboy at a demo day recently. The Bronson felt more balanced and fluid of the 3 bikes. While I loved how the 29r’s rolled through the rock gardens I felt too up in the air on them. (I’m 6’1″) They were amazing and I wouldn’t turn them down, but the Bronson just felt right to me.

  • James Workman says:

    and short riders cheered! as tall people got the shaft once again!

    being tall in a world designed for the numerical averages, so as to reach / tap a broader market, ALWAYS! leaves the tall people CRAMPED!

    Long live the 29ers!

    BMX barrowed from the road racers in the late 1970′s and early 1980′s.. same as the MTB crowd.. and the 700c will NEVER! die.. because it is not a FAD! Not that 650b / 27 is a FAD.. because the short people of the World can reach the pedals easier.. and the middle of the road / normal or better yet the numerical average height crowd will feel better moving to a bike that is smaller.. thusly more maneuverable. because none of the men that are 5’5″ to 5″10″ want to ride a Small Frame 29er.. because of the word SMALL! being stuck I their SMALL(ish) Napoleon Complexes, LULZ!

    the 650b boils down to the majority of men riding are less than average height, look around on the hill and at the Pros.. what do you see, don’t hate me for speaking the truth!

    and these men who are spending money.. ALREADY!! have Small issues.. and thus a Bike with SMALL written on it or more accurately when a woman notices how short in length their top tube is.. some women go around measuring top tubes.. would then laugh openly at the demure size of the little(ish) man with the little(ish) top tube.

    why does everyone try to be so Polite to these angry little Napoleon Types?

    mean while the tall people.. who are always reaching stuff and being helpful in general.. are stuck being made the bad guys because we had finally an area where we could come together and be clumsy together.. with not a lot of people watching because we would be in the woods where they couldn’t see us being clumsy!

    Tall People are being forced out of MTBing! by the little people! they steal everything!

    if you didn’t find this entertaining and or funny.. You Suck! not me.

  • Wacko says:

    Please.. 29ers aren’t going away and stop thinking all short people are bitter and vindictive. I could care less if my bike had a XXXXS stamp on it as long as it fit correctly to how I want to ride.

  • BigAussie says:

    I own a Giant Anthem 26″ custom build and a Giant talon 0 29er
    The anthem is my number 1 choice every time its just more fun
    I can see the point of a 27.5″ anthem it should be good but I will not be in a rush to get rid of the 26″
    back to the talon its spot on for moor rides but it feels a bit dull at the trails
    also giants own brand wheels on the cheaper models are not good my 29er wheels lasted 1 winter then I changed them for some mavic crossrides made it a better ride

  • sam says:

    I was holding out on the 29 er fad as long as I can and I believe it is for taller riders (5’10″) above guys. I am 5’8 and happy with my 26 until i rode a 9er after much hesitation. For starter going over roots and logs got much confident just cause it dint want to trip as easily as my 6er did and this was a hard tail as compared to my 6er full suspension and still the tire size soaked up the bumps and was easier to pedal climbs ! I am still going to hold out for the 27.5 , cause I think vertically challenged rider like myself will have trouble throwing around a 9er like i do with my 6er. But the 27.5 may be a happy medium for guys like me !

  • Mick says:

    I just moved from a Nomad to a Bronson and the 27.5″ are better. Most times I don’t notice them but when doing slow techie rocks they’re way better. Easier to hold a line through sketchy stuff too whether fast or slow, carves berms better, even seems to do skinny north shores better too although I’ve no idea why, and compared to the Nomad, it hops through the All Mountain Trials sections of the track I ride like a trials bike, but that’s probably down to the bike, who knows, and I reckon I ride faster, but it’s sometimes hard to work out if that’s because the bike is so refined or it’s the wheels, but probably a combination of both. End of the day 27.5′s are evolution in progress but that’s not to say that a good bike, regardless of wheel size, will always be a blast to ride, but IMO 27.5′s are more fun to ride than 26′er’s. The only thing I don’t like is that I’ve clipped my balls a few times on the back tyre when hanging off the back of the bike (ouch) but seem to have unconsciously adjusted my riding style as it’s not happened for awhile. I’m thinking that 29′er riders must have problems with the family jewels.
    A 27.5″ Nomad would be a game changer I reckon.

  • Tomek says:

    Holy s$&t! I was looking for some help in deciding if I should “upgrade” my 14yr hard tail stump jumper … I love that F-er and I feel like I can attack any trail without hesitation. Maybe it’s the engine? But seriously – if I’m having fun attacking the hills on my old 26er … Why the F should I be considering spending a lot of money on a new bike? Somebody shed some knowledge – I am cheap but I invest wisely for long term use! 27.5 or stick to my O.G. ride?

  • Mickey says:

    GIANT is the biggest bicycle producer in the world !

    But in the factories they actually produce aswell for other brands:

    i.e. Scott, Trek, Colnago, Bonetrager, ….whatever.

    Do not think that a bicycle brand is producing his own frames or parts…….

  • Shawn McAfee says:

    I like that Giant is pushing the envelope and trying something different. It shows a lot of confidence from the brand to step out and try something new.

    That said, I’m not 100% positive I agree with the 27.5 as a platform. It makes sense in some applications and regions, but others maybe not. I guess only more testing on the trails will prove to be right or wrong.

  • Si Walker says:

    Hi All,
    I have had 26ers for years and last year got a 29e, they are just too big in tight rutted ground like the peaks etc and at 5’9 i think the bike is just too big even on a medium frame. I am just about to buy a 650B and going for the Giant, it just has it for me cant wait to hit the trails and getting out for a long weekend in Wales 

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