b746cdd5_al_White_Paper___Calfee_Design__0
[1] Inexpensive carbon design Lighter than steel frames Traditional look Simple design Generally good impact resistance of tubes [2] Limited by metal lug design Weak spot at lugs susceptible to catastrophic failure (due to galvanic corrosion, thermal expansion, or inadequate bond) Fail to optimize benefits of carbon Bonded and blind-riveted parts Discontinuity of materials leads to non-optimized ride quality High stresses at joints Non-repairable [3] Look KG series Time Helix Older Trek 2000′s [0] 
Carbon Tubes/Aluminum Lugs
Technical White Paper | Calfee Design
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