TUNE GEILES TEIL 4.0

£189 (scroll down to configure this product)
The Geiles Teil 4.0 (now in its fourth generation) is an amazingly stiff and lightweight CNC machined stem. Using super strong 7075 T6 grain orientated and heat-treated aluminium, with custom-made TiAl6V4 titanium hardware, Tune have produced one of the most beautiful & technically advanced bicycle stems available.
Its tapered and butted design (inside and outside) distributes the load to the strongest areas of the component, while machined apertures at the steerer clamp save weight without affecting strength (as confirmed by VR-3 Max stress test results… the toughest in the world!)
The Flip-Flop design necessitates a separate front plate for easy bar / stem removal, while the four bolt arrangement with wasted sides to the front plate distribute load evenly around the bar, reducing the possibility of damage to lightweight carbon handlebars. The four titanium front plate bolts screw into blind holes, which are closed to the elements at the threaded end to eliminate the chance failure caused by galvanic corrosion.
Perhaps the most evolved bicycle stem available, the Geiles Teil offers the ultimate combination of light weight, strength and safety. Proven in competition by numerous Olympic winners and World Champions… There is no better.
Available in seven lengths and the full range of Tune anodized colours.

SPECIFICATION

• • Application: MTB/Road handlebar stem
• • Material: Multi-butted 7075 heat-treated aluminium
• • Bolts: 2 M5 x 13.0 (steerer-tube). 4 M5 x 14.5 (handlebar clamp) TiAI6V4 Titanium with cold-rolled fine threads
• • Manufacturing process: CNC machined
• • Lengths: 50 mm / 60 mm / 75 mm / 85 mm / 95 mm / 110 mm / 120 mm
• • Angle: ± 8º
• • Height: 40 mm (minimum steer-tube insert 37 mm)
• • Steerer-tube diameter: ø 1 1/8” / ø 28.6 mm
• • Handlebar diameter: ø 31.8 mm
• • Weights (approx.): 94 grams (50 mm) / 96 grams (60 mm) / 106 grams (75 mm) / 112 grams (85 mm) / 117 grams (95 mm) / 126 grams (110 mm) / 131 grams (120 mm)

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