The invention relates to a bicycle frame, and especially relates to a bicycle frame with a fixed rear axle fork frame, which comprises a head pipe that can sleeve a front fork, a lower pipe connected to the head pipe, a vertical pipe that can sleeve a seat rod, an upper pipe connected between the vertical pipe and the head pipe, a rear upper fork fixedly connected at one side of the vertical pipe and rear lower forks, wherein ends of the rear upper fork and the rear lower fork are connected to each other; the vertical pipe, the lower pipe and the rear lower forks at two sides are fixedly connected to a five-way in a gathering way; an arc-shaped reinforcement ring is set between the rear lower forks at the two sides; and net-shaped ribs are fixedly connected between the rear lower forks at the two sides from the arc-shaped reinforcement ring and the five-way, thus effectively strengthening the connection relationship between the rear lower forks and the five-way; the arc-shaped reinforcement ring can better solidify the angle between two rear lower forks; and the rear lower forks are prevented from breaking after long-term corrosion.
Bicycle frame with fixed rear axle fork frame
2016-01-13
Patent
Elektronische Ressource
Englisch
IPC: | B62K Fahrräder , CYCLES |
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