Gaaah! I had an incident with my bike yesterday that left me with four broken spokes on my front wheel.

No problem I thought, I’ll get replacement spokes tomorrow. Except of course I’m on my way into work now having forgotten to measure the damn things!

My front wheel is running a Hope Pro 4 hub with an AlexRim Volar rim. Anyone know what spoke length I need, or where I might easily find the info. I honestly thought there’d be a rim / hub database on Google, but if there is, I can’t find it.

DT Swiss have an online calculator, I use “spocalc” an old spreadsheet which can be downloaded through the Sheldon Brown site…

You may find that you need to look up or measure your rim and/or hubs if neither resource has them…

ProWheelBuilder – Spoke length calculator