A keyword dilema - Motorbike vs Motorcycle

I run a fairly popular motorbike/motorcycle community forum, over the last year I have done a great deal of work to SEO the site and now I am reaping the rewards of this.

However, I have something of a keyword dilemma - Motorbike vs Motorcycle

My personal preference is Motorbike and therefore the majority of the site uses this term (motorcycle is also in meta tags/description). So if I submit an article the title is typically something like this:

How to do XXXXX with your Motorbike

When members submit threads/post they typically use motorbike or bike and on rare occasions motorcycle - I think that the reason for this is that the majority of members, like the site, are UK based and the norm in the UK is motorbike.

However, if you perform a Google search for these single terms you get the following results:

• Motorbike: 9,860,000 pages
• Motorcycle: 87,200,000 pages

As you can see motorcycle is by far the more popular term and this leaves me with a dilema - target the small "motorbike" keyword or go for the big boys on "motorcycle"

I don't think anyone in the states uses 'motorbike'. m If you're targetting UK folks, then use the UK term most likely to be searched on.

I honestly never heard about motorbike term up to today. I would never personally search that term.

In India we simply say bikes, instead of motorbikes or motorcycles, while in US etc. bike word is used to define a cycle. At the end of the day, you have to choose keywords based on the target audience you have in mind and what they are most familiar with.

Of course if you want to target a global audience, then using motorcycles in the article title would be more appropriate.