Meson Di2
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I am Isaac Meson Di2, a multifunctional high-tech racing bike. When it comes to covering ground in a minimum amount of time, you can always rely on me. The trained cyclist knows exactly how to get the most out of me. My distinctive design and aerodynamic features are based on a lightweight but very strong and stiff frame. I look forward to the challenge of riding with you on my back during competitive races, time trials and triathlons.
My design is based primarily on aerodynamic properties. The most striking aspect of this is my triangular profiled down tube, resulting not only in less drag but also improved lateral stiffness. My top tube, which is triangular where it joins the head tube, gradually changes to a flatter oval shape towards the seat tube.
The slightly downwards angled slope of my top tube gives me a somewhat rangy look.
At high speeds, headwinds can exert major forces on my seat tube. To minimise this impact, my designers carried out wind tunnel tests and used the results to give me a seat tube with a sharp edge. This flat vertical tube is recessed in back to provide space for the rear wheel and allows headwinds to slip by without any significant impact.
Changing gears becomes easier, effortless and faster with Di2 by simply touching the shift buttons. Control at your fingertips. Additional benefits include an automatic trimming front derailleur, great accuracy plus easy adjustment and installation. Di2 continues its great success with Shimano Ultegra. And it makes no difference if these roads are cobbles, tarmac or mud.
My specially shaped seat stays and S-bend shaped chain stays can easily deal with any irregularities of the surface beneath my wheels. Did you know that I'm also fitted with a semi-straight front fork? I am Isaac Meson, and I'm ready to take on any wind from any direction!
Isaac Meson Di2
General
Frame Sizes: 50, 52, 54, 56, 58 and 60
Weave: 3K Monocoque
Frame
Weight: From 1045 till 1185 gr
Stiffness Head Tube: 100 N/mm **
Stiffness BB: 150-160 N/mm **
Fork
Fork Weight: 390 gr *
Fork Stiffness Lateral: 50 N/mm **
Weave: 3k Monocoque
Steerer: 3k Monocoque 1"1/8 - 1.5
Crown: 3k Monocoque 1"1/8 - 1.5
Legs: 3k Monocoque
Dropouts: Alloy
Seat Post
Weave: Isaac carbon aero seat post 3k
Frame Technical Specifications
BB Shell: BB30
Headset Cups: 1"1/8 - 1.5
Seat Post Insert: Aero
Dropouts: One piece
Derailleur hanger: replaceable
Seat post Clamp: Isaac-119 black
Cable Stopper Shifter: Semi Internal (Down Tube)
Cable Stopper Brake: Internal (Top Tube)
Headset: Isaac CF 1"1/8 - 1.
Bike Specifications
Group: Ultegra 6770 Di2 (excluding cranckset)
Cranckset: FSA compact 34-50
Wheel set: FFWD F6R Isaac branded
Tire; Schwalbe Ultremo R.1 700X23
Tube: Schwalbe 18/28-622/630 Group 15 SV 40 mm
Saddle: Selle Italia SL XC Black White
Handlebar: Ritchey Pro Logic II Wet Black O/S 31.8
Stem: Ritchey Pro 4-Axis Wet Black O/S 84D 31.8
Bar tape: Lizard Skins Durasoft 2.5mm
Bikeweight (indication) Framesize 56 (without pedals)
7.850 gr
* Target weight
** Target Stiffness
| Dimension | size 50 | size 52 | size 54 | size 56 | size 58 | size 60 | |
| A | seat tube total lenght | 500 | 515 | 540 | 560 | 585 | 605 |
| A2 | seat tube joint | 429,4 | 460,2 | 490 | 510 | 525 | 545 |
| B | top tube lenght | 520 | 538 | 555 | 568 | 585 | 600 |
| C | seat tube angle | 74.5° | 74° | 73.5° | 73.5° | 73° | 72.5° |
| D | head tube | 110 | 130 | 155 | 180 | 205 | 220 |
| E | head tube angle | 71.75° | 72° | 72.8° | 73.3° | 73.5° | 73.5° |
| F | BB drop | 71 | 70 | 69 | 68 | 67 | 65 |
| G | BB to front wheel | 571,3 | 583,4 | 590 | 598,8 | 608,4 | 618,4 |
| H | chain stay | 405 | 405 | 405 | 405 | 405 | 405 |
| I | wheel base | 965,6 | 978,1 | 985 | 994,2 | 1004,2 | 1014,4 |
| J | fork rare | 43 | 43 | 43 | 43 | 43 | 43 |
| K | standover height | 747,6 | 762 | 785,8 | 805,7 | 829,2 | 849 |
| L | standover height offset | 133,6 | 142 | 153,4 | 159 | 171 | 181,9 |
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