Rear box for the 51, 54, 58 and 61 are now available for sale. Still trying to locate a 56 frame to measure.
Below is a production box for the 58. 61 box looks similar.
Rear box on 54
Order yours at https://custombikexcessories.com/...2p3-rear-storage-box
Yann
http://www.custombikexcessories.com
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Below is a production box for the 58. 61 box looks similar.
Rear box on 54
Order yours at https://custombikexcessories.com/...2p3-rear-storage-box
Yann
http://www.custombikexcessories.com