This is a Tri-athlete road frame with a 78 degree seat tube angle and vertical dropouts.
The Tachyon (tack-e-on, like tackyon bounce in TNG) Is made from 3Al-2.5V Titanium tubes. The seat tube has been cold worked making a stronger spine for the frame. Made for 650c wheels the wheel base is approximately 100cm axle to axle.
The shifter bosses, bottle cage bosses, drop-outs, brake bridge, seat post binder assembly and 68mm B/B shell are machined from 6AL-4V Ti plate or rod stock then TIG welded with the tubes.
The Tachyon uses a 1 3/8" clamp-on front derailleur, a 27.2mm post and has external cable routing.
Available in 6 sizes (stand over height) 49cm (71.5) - 51cm (71.5cm) - 53cm (73.8cm) - 55cm (75.7cm) - 57cm (77.7cm) - 59cm (79.7cm). There is also a 61cm size made that has a stand over height of 81.5cm.
This larger size use 700c wheels.
The frame weight averages 3.2 pounds.
To keep its price under $1150, the Tachyon comes a satin Titanium finish only. Very affordable for this type of frame. $ 1139.99
This page is designed for comparisons and will be best viewed on a wide screen.
| Frame Size Center-to-Top | Top Tube | Head Tube Angle | Seat Tube Angle | Chainstay | B/B Height | Wheelbase | Front Center | Fork Rake | Stand Over Height | Head Tube | Weight |
| 49 | 50 | 72 | 78.0 | 39.3 | 27.0 | 96.8 | 57.9 | 3.5 | 71.5 | 8.7 | 2.95 |
| 51 | 51.5 | 72.5 | 78.0 | 39.3 | 27.0 | 98.1 | 59.1 | 3.5 | 71.5 | 8.7 | 3.00 |
| 53 | 54.25 | 73 | 78.0 | 39.3 | 27.0 | 100.6 | 61.6 | 3.5 | 73.8 | 10.5 | 3.10 |
| 55 | 55.75 | 73.5 | 78.0 | 39.3 | 27.0 | 101.8 | 62.9 | 3.5 | 75.7 | 12.5 | 3.19 |
| 57 | 57 | 73.5 | 77.0 | 39.3 | 27.0 | 102.2 | 63.2 | 3.5 | 77.7 | 14.5 | 3.38 |
| 59 | 58.5 | 73.5 | 76.0 | 39.3 | 27.0 | 102.7 | 63.8 | 3.5 | 79.7 | 16.5 | 3.36 |
| 61 (700C) | 60 | 73 | 76.0 | 40.6 | 27.0 | 105.5 | 65.8 | 4.0 | 81.5 | 18.8 | 3.37 |
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