Available in 3, 4 and 5 way for inline and bulkhead mounting - not cheap but can solve wiring disconnecting problems.
They are not easy to solder and require good soldering skills and you will need to seal with silicon but they are very small.
Buy binder 719 online from RS Components
Used in conjuction with this box you could make up your own junction boxes for mounting on frame tubes:
electric bicycle kits connector box,View Electric bicycle kit connector box, Product Details from Outride Technology Co., Ltd. on Alibaba.com
They are not easy to solder and require good soldering skills and you will need to seal with silicon but they are very small.
Buy binder 719 online from RS Components
Used in conjuction with this box you could make up your own junction boxes for mounting on frame tubes:
electric bicycle kits connector box,View Electric bicycle kit connector box, Product Details from Outride Technology Co., Ltd. on Alibaba.com
