Gravity Bike Crank

[scorpio54]

Hello Everyone,
I have a Gravity road bike and I don't know what type of crank remover will work on my bike? There is an Allen type of bolt that I can take off fairly easily, but inside there looks to be a spline type nut. Lately every revolution of the pedals I can hear a clicking sound and it seems to be coming from inside the crank and I wanted to see if there is any lubricant in there? I apologize for not having the proper terminology about these type of things, but I'm hoping someone can help me despite my vague descriptions? Thanks

[Alan Fawcett]

I think the creaking will be the bottom bracket I will likely need replaced there are various types of cranks and each type has its own way to be removed to answer the question properly I’d need to see a photo of the non drive side of the crank and various differant bottom brackets require specific tools to replace them if you are not mechanically minded or are not keen to buy tools you’re only going to use a handful of times I’d recommend you book it into you local bike shop. Hope it works out for you Alan 👍