Tomac 2010 automatic 120 white mtb XC

Our hero Johnny T's favorite bike, the Automatic has been totally redesigned for 2010, increasing to 120mm of travel and incorporating the highly coveted IAS suspension design. Among a bevy of features, the Automatic 120 uses triple butted 6069 top and down tubes, forged aluminum shock mounts, CNC machined shock and rocker link mounts, full high compliment bearings, oversize aluminum shock pins and a custom 7050 high strength rear derailleur hanger. If you are an XC rider that wants a bike for everything, the Automatic 120 is a bike that really excels in every occasion.

"This bike is perfect for me. I love the way it handles, absorbs bumps and how neutral it feels when I am climbing and descending. It's the one bike in my quiver that I find myself continually choosing because it just does everything right."
Johnny T.

Features
A versatile trail bike for rough terrain, combining excellent pedaling efficiency and suspension activity.

• New IAS Instant Active Suspension system provides improved response time to bump forces and excellent pedalling efficiency
• 120mm travel, designed for 120 or 130mm travel fork
• 6.4 pound/2900g frame weight with Fox RP23 shock
• 6069 aluminum with custom butted top, down and seat tubes
• CNC machined seat stay arch, dropouts and yokes
• Fits SRAM, Shimano and FSA front derailleur's
• Full seat post extension
• Dual water bottle mounts on all but small size
• Up to 2.2 tire clearance
• 69.5 degree head angle, 73 seat angle, 13.1 BB height

Spec

(Also available as a frameset)

• Size
• Color
• Rear Shock
• Fork
• Headset
• R/Derailleur
• F/Derailleur
• Shifters
• Brakes
• Cranks
• Cassette
• Chain
• Wheelset
• Tires
• Grips
• Handlebar
• Stem
• Seatpost
• Saddle

Automatic 120 1

• S M L XL
• Black ano or White
• Fox Float RP23 XV Air Sleeve
• Fox Float Fit RL120 15mm
• FSA Orbit MX
• SRAM X0
• SRAM X9
• SRAM X9
• Avid Elixir CR
• Truvativ Noir
• SRAM Powerglide 980 11-34
• SRAM PC971 Power-Link gold
• Easton XC Two 15mm
• Kenda Tomac Nevegal 2.1 Folding
• Tomac Custom Thin Waffle
• Easton Monkeylite Low, 685mm
• Thomson Elite, 31.8mm, 90mm
• Thomson Elite, 30.9mm, 367mm
• WTB Silverado Classic Cut

Automatic 120 2

• S M L XL
• White
• Fox Float RP2
• Fox Float RL120 15mm
• FSA Orbit MX
• SRAM X9
• SRAM X7
• SRAM X7
• Avid Elixir R
• Truvativ Stylo 3.3
• SRAM Powerglide 950 11-34
• SRAM PC971 Power-Link gold
• Easton XC Two 15mm
• Kenda Tomac Nevegal 2.1 Folding
• Tomac Custom Thin Waffle
• Easton EA50 Low Rise, 685mm
• Easton EA50 31.8mm, 90mm
• Easton EA50, 31.8mm, 350mm
• WTB Silverado Classic Cut

Geometry

Automatic 120

• Shock ETE
• Rear Travel
• Fork Travel
• Head Angle
• Seat Angle
• Head Tube length
• Seat Tube Length
• Effective TT Lenth
• Wheelbase
• Chain Stay Length
• BB Height
• Standover Height

S

• 190 x 50 (7.5x2)
• 120mm (4.7)
• 120mm (4.7)
• 69°
• 73°
• 115mm (4.5)
• 393mm (15.5)
• 549.4mm (21.5)
• 1066.4mm (41.9)
• 433mm (17)
• 335.2mm (13.1)
• 748mm (29.45)

M

• 190 x 50 (7.5x2)
• 120mm (4.7)
• 120mm (4.7)
• 69.5°
• 73°
• 115mm (4.5)
• 443mm (17.5)
• 584.2mm (23)
• 1095.6mm (43.1)
• 433mm (17)
• 335.2mm (13.1)
• 752mm (29.60)

L

• 190 x 50 (7.5x2)
• 120mm (4.7)
• 120mm (4.7)
• 69.5°
• 73°
• 130mm (5.1)
• 485mm (19)
• 609.9mm (24)
• 1122.39mm (44.1)
• 433mm (17)
• 335.2mm (13.1)
• 753mm (29.60)

XL

• 190 x 50 (7.5x2)
• 120mm (4.7)
• 120mm (4.7)
• 70°
• 73°
• 150mm (5.9)
• 532mm (21)
• 633.4mm (25)
• 1141.1mm (44.9)
• 433mm (17)
• 335.2mm (13.1)
• 777mm (30.60)

Technology

The Automatic incorporated the new IAS Instant Active Suspension System. IAS suspension makes quick work out of bumps, especially repetitive hits (think braking bumps) where quick suspension action means less transmitted to the rider. Because the suspension also initiates quicker, test riders consistently noted that IAS equipped bikes drive through bumps more easily, maintaining speed rather than letting the rough terrain slow the bike down. The rocker link allows us to manipulate the shock rate as the bike goes through the travel, providing a perfect curve to both absorb bumps and pedal well. Using a single pivot design allows us to create a very stiff package that is overall lighter than competitor's bikes.

One of the important aspects of the Automatic's suspension is the main pivot location. We configured it in a location that would maximize pedalling efficiency, but not in a place that would create excessive pedal feedback or minimize the bike's ability to absorb bumps. We used a Fox RP23 shock with XY secondary air canister because it's more linear from middle stroke and has low initial stiction (because you are running lower initial pressures). The Automatic has a relatively flat shock rate, which maximized the character of the air shock. It allows the bike to pedal well, get full travel and still feel pretty bottomless throughout the travel.

Because the bike tends to sit closer to the top of the travel under standard rider load, i.e. not wallowing in the middle, it pedals better and you get a sense that the bike has longer travel that you would expect. This also helps lessen the ?hooking? effect on rocks and roots because the suspension isn't over-compressing, kicking the power into the pedals and disrupting your pedal motion so you can't ride through rough terrain.

Because the swingarm typically sees the majority of lateral (side to side) flex, the Automatic uses a fully triangulated rear swingarm to increase stiffness. Stiffness in the swingarm translates both into better rider control, but it also allows the suspension to be more active in rough terrain. When the rear end is suffering from lateral flex during suspension movement, it binds the shock and will limit suspension movement. The front triangle has also been designed with stiffness in mind. The top and down tube are specially shaped to maximize lateral stiffness, and are triple butted to ensure minimal weight.

The aspect of the Automatic that you will really like is just how well it pedals and absorbs bumps. These might seem like contradictory functions, but that's the biggest difference we see between Tomac bikes and our competitor's bikes. We know you will ride the same bike down that you climbed up, and that you need a bike that will perform both activities with aplomb.

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