Updated Covid-19 information, including click and collect order details.

  • Free UK DeliveryMainland ex H'lands (over £25)
  • Free Returns*Mainland UK over £25
  • 200+ Top BrandsUK's largest range
  • Finance Available0% on orders over £300
  • 15+ Years OnlineTried, tested, trusted
  • Award WinningMCN retailer of the year

Free UK Delivery

It's really simple, if you spend over £25 with us, delivery is free of charge to any mainland UK address (excluding Islands & Highlands).

Free Returns*

We now offer free returns on any UK Mainland order (excluding Highlands) over £25. Most importantly, returning an item to us is super simple. Just click here or on the 'create a return' link located at the bottom of every page, and create your return in under 1 minute.

200+ Top Brands

There simply isn't a better selection of biking brands anywhere in the UK and we're constantly updating every range to ensure you have the best choice available.

Finance Available

Why wait? We now provide some of the best finance packages around to help spread the cost and get you on the road. We now offer finance on most orders from as little as £280 with 0% packages starting at only £300. The online application process is super simple too and takes around only 5 minutes to complete! The best part is, there's no paperwork to print and in most cases you'll have a decision in under 10 minutes. Just select finance as a payment method and take it from there!

15+ Years Online

We've been serving the motorcycle community for more than 15 years now and in that time we've grown to be the largest online retailer of motorcycle clothing & accessories in the UK.

Award Winning

There's a reason why our competitors spend so much time watching what we do, we believe in customer service levels beyond the norm and we're always looking for ways to improve. In late 2013 we were recognised for this by the bike industry's No.1 publication, Motorcycle News. As retailer of the year, we feel it's our duty to constantly better our offering and if you have any ideas, we'd love to hear from you!

Castrol Power 1 4T 10W-40

Castrol Power 1 4T 10W-40

Customer Product Reviews

5 Stars from 62 reviews

Castrol
Price From $11.65 $13.31
Showing 61 - 62 of 62
Castrol Power 1 4T 10W-40
September 24, 2012

The best a bike can get

Smoother running, smoother gear change, low oil consumption...what more could a bike want? I've tried some of the fancy alternative makes, but this one does the job mile after mile at a reasonable price.

Castrol Power 1 4T 10W-40
August 25, 2012

Ideal 4 stroke oil

I just recently changed the oil in my little CBR 125. I gave it a run about and as soon as I got going I noticed a big improvement on not only performance but also on engine noise as well. Overall it did wonders on the little thing.

PLEASE NOTE: The views and opinions expressed in the above reviews are solely those of the author and are not necessarily representative of the views of SPORTSBIKESHOP LTD.