SunRace MZ800 12 Speed 11-51T Cassette - Silver
SunRace MZ800 12 Speed 11-51T Cassette - Silver
SKU:CSSRZ8251D
Stock Status ⓘ
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MZ800 12 Speed Cassette
MZ800 12sp Index, Shimano HG Fit - Fluid drive+ cogs (3 alloy, 9 Steel), Composite spacers & Alloy Lockring, 11-51T
- Optimised for Shimano 12 speed transmissions
- 3 alloy and 9 steel sprockets
- Range: 11-13-15-17-19-21-24-28-33-39-45-51
- Weight: 665g
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Buy to Order In
What does 'Buy to Order In' mean?
If this is displayed it means these items are not currently held in stock here at Slam69, We order this in from the supplier and it's usually dispatched in 1-3 working days*.
Once your order is placed, We will email you to confirm the estimated arrival date.
*In some cases these items may have a longer due date, or be out of stock.
In this case, we will offer alternatives, if possible. You can wait for arrival, we'll keep you updated and dispatch your order as soon as possible. Or you can opt to change or cancel your order.
You're welcome to contact us first to check availability before ordering.
Get in touch anytime.
Delivery
NEXT DAY DELIVERY
Get FREE Next Day Delivery with Promo Code: FREESHIP
(minimum order £50.00/1 discount code per order)
All orders are dispatched using DPD Next Day Delivery*.
AM Delivery, Saturday or Sunday delivery also available.
*UK mainland only. We don't currently offer free delivery to the UK Highlands** and Islands***, Isle of Man, Northern Ireland or Channel Islands.
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SAME DAY DISPATCH
We aim to dispatch orders same day when placed by 2pm, Monday - Friday.
Orders placed after 2pm Monday - Friday, on a Weekend or Bank holiday; will be dispatched on the next working day.
Please note - Only Orders with In Stock items are available for same day dispatch. Orders that include Buy to Order items are usually dispatched within 1-3 days, on a Next day delivery service.
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Complete Bike, Custom Built Bike and Wheel Orders -
These orders may take longer to dispatch, we build up custom builds to order - dispatch is normally within 1-2 days.
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UK Delivery Options
We offer a flat rate delivery fee, no matter how big or small your order is. Your order will be sent with DPD on the service of your choice. UK Mainland is Next Day Delivery as standard.
Pick Up (Collection from Gloucester) - £0.00
Our store is based in Gloucester - Find out more.
Mainland UK – Next Day Delivery (Monday to Friday) - £5.99 (Orders < £10)
Mainland UK – Next Day Delivery (Monday to Friday) - £3.99 (Orders > £10)
Mainland UK – Next Day by 12.00 (Monday to Friday) - £7.99
Mainland UK – Saturday Delivery - £16.99
Mainland UK – Sunday Delivery - £16.99
Scottish Highlands** – 1-2 Day Delivery - £13.99
Scottish Islands*** – 2-4 Day Delivery - £16.99
Isle of Man – 1-2 Day Delivery - £16.99
Northern Ireland – 1-2 Day Delivery - £20.00
Jersey and Guernsey – 1-2 Day Delivery - £25.00
**Scottish Highlands - AB36-38, AB55-56, FK17-21, IV1-39, IV52-54, IV63, KW1-14, PA21-40, PH19-26, PH30-41, PH49-50
***Scottish Islands - HS1-9, IV40-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3
Isle of Man - IM
Jersey and Guernsey - JE, GY
Northern Ireland – BT
If your postcode is in one of these locations please choose the correct shipping whilst checking out (Not Mainland UK).
It genuinely costs us and the courier more to deliver to these more remote postcode locations.
Selecting the correct option will avoid any delays dispatching your order.
You can find up-to-date pricing, offers and current information in the Cart/Checkout.
Whilst we trust in DPD to deliver on time, please allow for delays during busy periods; following bank holidays, during Black Friday and Christmas, in severe weather or adverse conditions. Remote locations in lowland Scotland, Cornwall and Isle of White may take a day longer to arrive.
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Worldwide Delivery Options
Please note, we don't offer shipping outside of the UK.
You can look into forwarding companies who would give you a UK address and forward your orders onto your country.
Some countries may incur VAT and Duty, please use a Duty Calculator and be prepared to pay these fees on arrival.
Please be aware that we will not cover these fees. If you are unable to pay your Duty fees the courier service may dispose the order.
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If you have any questions, we are always happy to help. See our contact info at the bottom of the page. 😃
Pick Up from Slam69
Ordering online for collection? It's really easy!
1. Select Pick Up in the delivery options.
2. We'll pick and prepare your order for collection.
(Please wait for our notification that it's Ready for Pick Up)
3. Come and collect your order.
(Bring your confirmation email when you come to collect your order. Don't worry about printing it out, you can show us on your Phone)
We're open 9am - 5.00pm Monday to Friday
Store Collection Address:
Slam69,
Unit 2 Pegasus Centre,
Hurricane Road,
Gloucester Business Park,
Gloucester,
GL3 4FF
We'll see you soon! 👋
Easy Returns
Easy Returns
Easy returns, with our 28 day return policy.
Changed your mind? Doesn't fit? No problem... simply pack your order back up, make sure the product is in the exact same condition it arrived. Please don't write on or apply a label to the product's retail packaging directly.
Note down your Order number in/on the parcel packaging so we can identify it and return to us.
Our return address is:
Slam69 - Returns,
Unit 2 Pegasus Centre,
Gloucester Business Park,
Gloucester, GL3 4FF
Please note - We do not cover return postage cost. We recommend using signed or tracked services and do not accept responsibility for any lost returns.
Exchanges
The quickest way to exchange is to place a new order for the item you'd like to exchange to. You can return your unwanted item back to us for a refund.
Warranty Returns
If your item is covered by Warranty, we'll need to send this off for inspection to the brand's warranty. To start, please get in touch and send us your order number and pictures of what's happened.
Eco Conscious
Here at Slam69 we're passionate about doing our bit for the environment, after all we love the great outdoors, it’s our favourite place to be! 🌳 We sell all second hand, used, less than perfect returns, ex-demo and old stock parts to help reduce waste and give them a new lease of life.
Click here to shop the Recycled Parts
All our packaging is re-used, recycled or recyclable. We encourage you to re-use and recycle your mailing bag, box and packaging.
We don't include paper Invoices or Delivery notes in your order, we understand these often go straight into the bin, but if needed, you'll have a PDF Invoice in your Order Confirmation email.
We're currently working with our suppliers to further reduce plastic packaging.
We're already seeing a huge improvement! 🌍
We are proud supporters of The Access Bike Project if you haven't heard of them, have a look at their website. They are an amazing community project that turn people’s old bikes into opportunities for our youth.
Any of our old bike parts that we cannot use or sell on our recycled page we donate to this awesome initiative.
Having your bike serviced? Upgrading? Have old parts taking up space in your garage? Donate your old bike parts to Access Bike. Here at Slam69 we have a collection point for any donations you may have. These guys are creative and innovative, even if parts are no longer fit for bikes, they will create something awesome!
Recently they organised a pub quiz fund raiser which raised them enough money to buy not one, but TWO new work stands, we were stoked to be able to help them attain a bargain price and order these in for them.
Access Bike receiving their new bike stands
Price Match
On top of offering our advice and guidance on the products listed that we personally use, know and have experience with, we understand pricing is a big part of making your decision too. We always try to bring the best pricing, so feel free to give us a nudge when you spot a better price. We are able to Price Match with the majority of items we have available.
We do have some criteria to meet when offering a Price Match.
- Send us the website URL to the competitors lower price. If in store, you can show us on your phone or a print out copy.
- The competitor must be a UK registered shop, we cannot price match against Google searches, Private sellers, eBay, Amazon or similar.
- The product listed must be the exact same as ours; identical condition, model, colour and size.
- The competitor must have the product in stock at the time of the Price Match.
- The Price Match total must be the product price including VAT and delivery.
- A Price Match discount cannot be added after the sale is complete.
- The Price Match discount and extra discounts, club savings or promo offers cannot be applied together, we can only offer one discount.
- We're unable to accept Finance or Cycle schemes on Price Matched and discounted products. These will need to be paid in full using our other payment methods.
- If accepted, we will give you a discount code or link to complete your order with the price matched product. You can use one discount code per order.
Please note, whilst we can Price Match the majority of products, sending this information does not guarantee a price match is viable.
Email us your enquiry to: slam69@hotmail.co.uk
Or enter your details below:
Hello 👋
Thanks for checking out our Independent Bike Shop.
We're a small team that love bikes too! We run the Slam69 Web Shop and Bike Workshop in Gloucester.
You can find everything we stock online. For anything you don't see, just drop us a message! We're able to get hold of many products and brands from most UK suppliers.
Getting you back on your bike is priority, so we're actively picking and dispatching your orders Monday - Friday with a 2pm cut off for same day dispatch. We’re here building wheels, dream bike builds, repairing and servicing bikes to keep you rolling.
Outdoors is our favourite place to be! 🌲 We strive to help the environment by working with our suppliers to improve recyclable product packaging. We're also reusing old and using recyclable packaging for your orders.
You’re also welcome to Click and Collect. Perfect if you’re nearby!
We're on the doorstep of Flyup417 Bike Park, local trails in Cranham Woods, Cotswolds Way and 40 mins away from the Forest of Dean. Find us just off J11a on the M5 motorway.
🚲