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The Vitus Nucleus is the 4x winner of MBR magazine £500 Hardtail of the Year award. This 27 VRS model is agile and fast aboard 27.5" wheels and features a Shimano Deore 1x10-Speed groupset with an 11-46T wide-range cassette and hydraulic disc brakes. Ideal for XC riding and trail centre all-day epics, this hardtail provides a versatile and dependable performance anywhere.
Don’t be fooled by the price point, the Nucleus isn’t your run of the mill entry-level mountain bike. It’s the foundation of the Vitus mountain bike range, with aggressive geometry designed to get you hooked. Don’t say we didn’t warn you. For 2021 all models now come with 1x groupsets.
The low, long, and slack geometry is coupled to 120mm of Suntour Air suspension taking care of any rough terrain you'll encounter on the trails while the Tektro M290 brakes will give you ample stopping power. For 2021 the Nucleus has received a threaded bottom bracket for increased durability and a wide range groupset thanks to the Shimano 1x10 M5100 Deore groupset. A clutch activated rear mech, and a narrow wide 1x chainring up front will keep you on the trails all day.
Vitus' tried and tested combination of WTB tyres and rims offers superior performance and grip. Finished off with a combination of Vitus and Nukeproof components the Nucleus 27 VRS has stepped up to take your riding to the next level.
Rest assured that each bike is fully built and tuned by Wiggle's team of qualified bike mechanics to ensure your bike arrives in perfect condition. We supply all bikes with a set of plastic pedals, a pedal wrench and a multi-tool kit. Find out which size fits you by clicking the size chart tab.
Note: Manufacturer may reserve the right to change the specification of that listed or shown on this page.
Sizing Information
The size chart below will get you on the right size bike. Experienced riders may also wish to refer to the geometry chart for more detail.
Getting the Right Fit
At Wiggle we measure each of our bikes to build accurate size charts for our customers. Our qualified team of mechanics then individually check each order, against measurements supplied by you, to ensure the size chosen is correct. Another reason you can have complete confidence when buying a bike from Wiggle!
If you are on the change over between sizes both options will fit. Racers and experienced riders would usually select a smaller size as this offers quicker handing. A larger bike offers more stability and is more suited to new and intermediate riders.
| Small | Medium | Large | Extra Large | ||
|---|---|---|---|---|---|
| Height | cm | 160 - 170cm | 170 - 180cm | 180 - 190cm | 190 - 201cm |
| ft | 5′ 3″ - 5′ 7″ | 5′ 7″ - 5′ 11″ | 5′ 11″ - 6′ 3″ | 6′ 3″ - 6′ 7″ | |
| Inside Leg | cm | 71 - 76cm | 76 - 81cm | 81 - 86cm | 86 - 94cm |
| inches | 28″ - 30″ | 30″ - 32″ | 32″ - 34″ | 34″ - 37″ | |
| Small | Medium | Large | Extra Large | ||
|---|---|---|---|---|---|
| Frame Size | inches | 15″ | 17″ | 19″ | 20″ |
| cm | 38.1cm | 43.18cm | 48.26cm | 52.07cm | |
| Seat Tube Length | mm | 380mm | 432mm | 483mm | 520mm |
| Top Tube (Virtual) | mm | 600mm | 620mm | 640mm | 665mm |
| Reach | mm | 420mm | 438mm | 455mm | 477mm |
| Stack | mm | 592mm | 597mm | 606mm | 615mm |
| Chainstay Length | mm | 425mm | 425mm | 425mm | 425mm |
| Head Tube | mm | 105mm | 110mm | 120mm | 130mm |
| Head Tube Angle | Degrees | 66.5° | 66.5° | 66.5° | 66.5° |
| Seat Tube Angle | Degrees | 73° | 73° | 73° | 73° |
| Bottom Bracket Drop | mm | 45mm | 45mm | 45mm | 45mm |
| Wheelbase | mm | 1128mm | 1146mm | 1167mm | 1196mm |
We will happily refund any item purchased on Wiggle if returned to us within 365 days; excluding Wiggle gift vouchers, nutrition and customised products, except when faulty.
Please note: Bikes and other bulky items cannot be returned using our local returns service (where applicable). Please contact us and we can arrange to collect these from you using our discounted courier rates. There is a fee for all collections, except for faulty products.
Returned goods must be unused and supplied with their original packaging, unless the goods are faulty. Wiggle will pay the return postage costs for any faulty items.
