The new Giant TCR, wheels, and saddles

June 27, 2015 - photo frame

  • By Lennard Zinn
  • Published 2 hours ago

  • Slim chair stays, flare legs, chair mast, and back tip tube territory urge float correspondence of a TCR Advanced SL while dwindling a weight. Photo: Giant Bicycles

  • Raising a TCR’s reduce headset temperament increases torsional acerbity by a oversized conduct tube, down tube, and bottom joint area. Photo: Giant Bicycles

  • The seatpost and back territory of a tip tube on a XL-size TCR Advanced Pro we rode looked surprisingly slim when looking down on them while roving in Mallorca. Photo: Lennard Zinn |

  • The 30mm-deep $2,300 SLR 0 is tubeless prepared with intensely high insurgency to stop heating. Photo: Giant Bicycles

  • A aloft connection indicate for a conduct of a pulling spoke balances a tragedy with a pulling spoke when underneath pedaling load. Photo: Giant Bicycles

  • Tubeless-ready edge bed figure and high-Tg creosote make a Giant SLR CO rims means to hoop tubeless tires and high stop heating. Photo: Giant Bicycles

  • The Giant Dynamic Fitting saddle before roving on it. Photo: Lennard Zinn |

  • After roving on a Giant Dynamic Fitting saddle, a asymmetries of how we lay on a saddle as good as how my pelvis tips brazen while roving is simply visible. So, we was deemed a claimant for a Contact saddle in a Forward shape, and it worked good for me in Mallorca. Photo: Lennard Zinn |

  • The Giant Contact SLR saddle with Neutral figure facilities CO rails, weighs 180g, and costs $225. Photo: Giant Bicycles

MALLORCA, Spain (VN) — Giant Bicycles’ capabilities are legendary, though it might not seem on your brief list of innovative bike companies. However, cruise a Giant TCR. When this “compact” support with long, super-deep aero seatpost initial seemed in 1997 underneath a ONCE team, can we remember how repelled we were? Its tilted tip tube was so radical during a time that a UCI, in a gigantic wisdom, primarily criminialized it. Its demeanour was bizarre compared to a turn tip tubes and brief seatposts we had always ostensible as being de rigueur for a highway bike, though maybe even some-more insubordinate is that it was a initial sub-one-kilogram racing support on a marketplace — and that was in aluminum!

TCR was a do-it-all bike dictated for climbing, sprinting, and time trialing, and, indeed, ONCE used a same bike for all of those things. The steeply-sloping tip tube looked quite radical when assimilated with aero bars and a front circle underneath Igor Gonzalez de Galdeano in time trials.

A few years later, when a TCR seemed with an integrated chair mast, it also literally pennyless a mold of what other manufacturers were doing. Perhaps we remember that ONCE executive sportif Manolo Saiz, after losing a Giant sponsorship to Telekom, pressured his new bike sponsor, BH, to also give him bikes with an integrated chair pillar so that his stallions would not be during a waste to Jan Ullrich.

The 2016 TCR

For 2016, Giant has an all-new TCR Advanced SL (with an integrated chair mast), TCR Advanced Pro, and TCR Advanced. The Advanced SL is deliberate a versatile GC bike, nonetheless don’t pattern to see it used in time trials by Giant-Alpecin riders. Giant engineers have smoothed many of a pointy edges of a pattern that collected creosote and fabric, slimmed some sections, embellished a fat off of a chair pillar cap, and combined vale CO dropouts, shred off 181 grams — a full 12 percent of a weight.

At a same time, TCR claims best-in-class pedaling stiffness/weight ratio for a frame, frameset-plus-wheelset pedaling stiffness/weight ratio when assimilated with Giant’s new SLR 0 CO wheels, torsional acerbity including a fork, and one of a lightest support weights. And indeed, when climbing a plateau of Mallorca this week on it and brazen a tight, curved switchbacks down their flanks, a TCR Advanced Pro jumped during a smallest focus of pedaling force and kept a wheels tracking by a tightest turns.

VeloNews speckled this new frame during a Amgen Tour of California, ridden by Giant-Alpecin’s Lawson Craddock.

Giant claims to be a usually association in a bike attention to build whole bikes starting from a fibers, quite now that BMC seems to have deserted a Impec robotic carbon-fiber needlework project. Giant buys a tender CO fibers, though it takes it a whole approach from there. It creates a fabrics and impregnates them with a possess exclusive resins, formulating a pre-preg fabric on-site that other manufacturers contingency buy from other suppliers. It uses these fabrics not usually in a frames, though also in a rims and saddles, as good as other components.

Over a years, a eyes have not usually turn accustomed to tilted tip tubes, though also to outrageous tube measure on frames, though distinguished facilities about a new TCR embody super svelte flare legs, chair stays, back tip tube section, and chair mast/seatpost. Clearly, weight is saved by creation these tools really slim, and according to Giant’s exam results, torsional acerbity is not sacrificed in a process. The lean, aero-shaped integrated chair pillar on a TCR Advanced SL and seatpost on a Advanced Pro and Advanced is designed to give some-more fore-aft compliance.

Raising a integrated reduce headset temperament inside a oversized conduct tube so it is some-more in-line with a outrageous Megadrive square-cross-section down tube stiffens a steering. Huge measure of a tubes assembly a 86.5mm-wide press-fit bottom joint bombard serve boost torsional and pedaling stiffness.

The TCR will be accessible in a USA starting in August. Prices operation from $9,000 for a TCR Advanced SL with Dura-Ace Di2 and SLR 0 CO wheelset to $1,700 for a TCR Advanced 3 finish bike.

The Wheels

The CO rims on a Giant SLR 0 and SLR 1 come in 30mm and 55mm low versions that have a 23mm outdoor breadth and 17mm tubeless-compatible middle width. The potion transition temperature (Tg) of a creosote is 245C, most aloft than a attention standard. Giant claims to have achieved brake-heating tests opposite Zipp and Reynolds rims and that a Giant SLR 0/1 clincher edge with SLR pads and 100psi tire lasted though any repairs by dual 15-minute tests for a sum engrossed braking appetite of 75Wh. Giant claims that a Zipp with Tangente pads also survived both 15-minute durations though that aspect effervescent on a stop aspect appeared, while Reynolds rims with Cryo-Blu pads unsuccessful during a initial 15-minute exam run.

Giant serve claims that it came out on tip when comparing both soppy and dry braking opening of these same 3 rims and pads and a Bontrager edge with Carbon Stop Cork pads. There was nary a spirit of sleet in dual days of roving on prohibited days in Mallorca, though dry braking on a many twisted switchbacks was certain and squeal-free for me.

Dynamic Balanced Lacing (DBL) is a tenure Giant has coined for a complement of carrying a drive-side tragedy on a pulling spokes aloft than that of a pulling spokes in a immobile state. This is achieved by anchoring a heads of a pulling spokes reduce in a heart prong than a pulling spokes. When a sequence twists a freehub forward, it tightens a pulling spokes and loosens a pulling spokes, so dusk out a tragedy on all drive-side spokes (or boldly balancing a tension). This is dictated to boost a continuance of a wheel, given disproportionate spoke tragedy is good famous to diminution a wheel’s life.

The anchor points of all drive-side spokes are also pushed serve outboard to improved change a left/right spoke tragedy while still providing a room compulsory for 11 cogs and a derailleur enclosure when regulating a largest cog. Having 21 back spokes with 14 on a expostulate side and 7 (radially-laced) on a non-drive side is also ostensible to even out spoke tragedy between a dual sides. The front has 16 radial spokes.

The rims and lacing systems are a same on both SLR 0 and SLR 1 wheels, though a SLR 1 is $1,000/set cheaper ($1,300 vs. $2,300/pr.). This is achieved by dropping a SLR 0’s DT Swiss star-ratchet freehub complement and Aerolite/Aerocomp bladed spokes in preference of a SLR 1’s customary freehub pawl complement and Sapim Race/Laser round, butted spokes. Bike mechanics will not be vivacious about a dark spoke nipples, though circle product manager Jeff Schneider insists that DBL formula in such offset wheels that a wheels will be most reduction expected to come out of loyal than other wheels.

SLR 0 wheels are listed as 1331 grams/pair 30mm-deep rims, that Giant says is best in class. It also claims delivery acerbity exam formula of a 65kg energetic pedaling bucket on a 175mm holder in a 39x25t rigging display a SLR 0 to have not usually a tip stiffness, though also a tip stiffness-to-weight when compared to a Zipp 202 Firecrest, Bontrager Aeolus 3 D3, Roval Rapide CLX 40, and ENVE Smart 3.4. It also claims aloft parallel acerbity than any of those wheels, totalled by side-loading a edge in a immobile state.

The Saddles

Giant’s new Contact SLR and Contact SL saddles underline “Particle Flow Technology;” rather than gel-filled sections, a Contact saddles have beads in dual compartments that pierce with a rider’s structure to discharge vigour over a wider area though pulling totally by a jelly pocket. Its other singular underline is a wise complement that is energetic while riding, rather than while sitting on a immobile memory froth pad or behaving physique coherence tests.

During a energetic saddle sense evaluation, a supplement pedals for during slightest dual mins on Giant’s wise saddle after it has been commissioned on a bike during accurately a same tallness as a rider’s existent saddle. Underneath a clear, opaque-gel-filled tip layer, a wise saddle has 4 demarcated zones colored possibly blue, white, pinkish or red. After a supplement has pedaled for a integrate of mins with skinny shorts and no chamois pad, he or she will have changed a ambiguous jelly out of a approach adequate that some of a colored zones will be visible. Asymmetries in saddle hit vigour as good as side-to-side and fore-aft vigour placement can be immediately identified interjection to a brightly-colored areas revealed. Referring to a chart, a tradesman can name a correct Forward, Neutral, or Upright saddle shape.

With carbon-filled bottom and CO rails, a 180g Contact SLR sells for $225, while a 210g Contact SL with tubular immaculate steel rails sells for $110.

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Lennard Zinn

Lennard Zinn

Our longtime technical author assimilated VeloNews in 1987. He is also a framebuilder, a former U.S. National Team rider, and author of many bicycle books, including Zinn and a Art of Mountain Bike Maintenance and Zinn and a Art of Road Bike Maintenance, as good as Zinn and a Art of Triathlon Bikes and Zinn’s Cycling Primer: Maintenance Tips and Skill Building for Cyclists. He binds a Bachelor’s grade in production from Colorado College. Readers can send brief technical questions to Ask LZ.

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