Orbea Onna 29 50 Mountain Bike 2022 - Hardtail MTB
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- Show MTB Hardtail Guide
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Product Description
A lifetime of mountain biking starts with a first, a bike that will look after you on your journey and won’t limit your adventures. The Orbea Onna is the ideal companion for any rider who is learning to love mountain biking, with a perfect blend of efficiency, comfort, and control.
Key Features:
- Light and capable alloy frame
- Plush SR Suntour XCE 28 Coil 100mm forks
- Slick Shimano 2x8 gearing
- Powerful Shimano hydraulic disc brakes
- Colour: Black/Silver, Red/Green, Blue/White
- Sizes: Small, Medium, Large, X Large
- The Orbea Onna 29 50 is available with 0% APR finance
All Tredz bikes are:
- Fully built & ready to ride
- Fully checked & tested by Cytech qualified mechanics
- Available with 0% APR finance on any basket over £99
- UK price match guarantee
- 365 day no hassle returns
- Free delivery in the UK Mainland on a date that suits you
In the box with every Tredz bike is:
- Free Tredz 9 key trail tool
- Free Tredz pedal spanner
- Free basic pedals
- Tredz drawstring kit bag
- 16 point quality control check sheet
- Basic bike setup instructions
- Free cycle insurance voucher
Occasionally, without notice, manufacturers change product design and/or specifications.
Specification
| Frame: | Orbea Onna Alloy, Dropout 9x135, BSA BB, Internal cable routing |
| Fork: | SR Suntour XCE 28 Coil 100mm QR |
| Headset: | 1"-1/8 Semi-Integrated |
| Stem: | Alloy 31.8mm interface 7º |
| Bars: | Alloy Flat 31.8mm 720mm |
| Front Brake: | Shimano MT200 Hydraulic Disc |
| Rear Brake: | Shimano MT200 Hydraulic Disc |
| Front Mech: | Shimano M315 31.8mm |
| Rear Mech: | Shimano Tourney TX800 |
| Shifters: | Microshift TS38 |
| Speed: | 16 |
| Rims: | Mach1 ER20 19c |
| Front Tyre: | Kenda K1153 2.35" 22TPI |
| Rear Tyre: | Kenda K1153 2.35" 22TPI |
| Seat Post: | Alloy 27.2 Offset 0 |
| Saddle: | Essax Adv soft135mm for Orbea |
| Chainset: | Alloy forged 22x36t 7/8S |
| Chain: | KMC X8 |
| Cassette: | Sun Race CSM66 11-34t 8-Speed |
| Pedals: | VP-537 Black |
Onna Sizing
Orbea Onna 2022 Size Chart
| Size / Wheel Size | Height (cm) | Height (Inch) |
| S-27.5” | 155-170 | 61.1"-66.9" |
| S-29” | 155-170 | 61.1"-66.9" |
| M-29” | 165-180 | 65.0"-70.9" |
| L-29” | 175-190 | 70.1"-74.8" |
| XL-29” | 185-195 | 72.8"-76.8" |
What size frame do I need if I am between sizes? - read here
Please note, all size information is provided as a guide - if you're unsure or need any further assistance you can call us on 01792 799508 ... we're happy to help!
MTB Hardtail Guide
Hardtail Mountain Bike Guide
Is a Hardtail mountain bike right for me?
If you’re new to the cycling world, we highly recommend taking a look at our bike buying guide overview or our mountain bike buying guide to help you decide what type of bike is right for your needs.
When you’re choosing a hardtail mountain bike, there are a few things to look out for which can help you to work out the quality and performance you can expect from a particular model.
Usage and suspension travel
Depending on the type of mountain bike riding you’ll be doing, you will want a bike with a longer travel or shorter travel suspension fork as well as components suited to more or less technical terrain.
Frame Material
Hardtail MTB frames are mostly made from aluminium alloy. High-end cross-country race bikes will have carbon fibre frames while trail hardtails and jump bikes sometimes feature steel frames.
Aluminium alloy frames are strong and lightweight. More expensive alloy hardtail MTBs tend to have ‘butted’ and/or formed frames which are lighter but just as strong.
Steel frames are heavier but offer a more comfortable ride, especially on higher end models, thanks to the more compliant nature of steel.
Carbon fibre composite frames offer the best of both worlds as they are strong, lightweight and comfortable. They are more expensive however and carbon hardtails start at around £1,300
Groupset and Drivetrain
A bike’s groupset, or drivetrain, is where the biggest difference in component quality is seen. A complete groupset comprises of the following parts:
- Chainset (aka Crankset)
- Bottom bracket
- Brakes
- Brake levers
- Shifters
- Front & rear derailleur
- Chain
- Cassette
Mountain bike groupset components are typically supplied by either Shimano or SRAM, with additional manufacturers like Formula, Hope, Magura, Tektro and TRP supplying brake systems.
Shimano & SRAM both produce a range of groupsets to suit different budgets. The hierarchy table here compares the different Shimano & SRAM groupsets to determine which bikes offer the best performance.
What gearing options are there?
Most hardtails offer a wide range of gears for taking on a variety of terrain. It’s not all about the number of gears though as fewer gears on the front, combined with a wide range rear cassette are much easier to use, but still give you the same wide range of gears. As you go up the price points shifting gets easier with more cogs on the rear cassette and fewer front chainrings.
 |  | |
|---|---|---|
| Professional |
11
 |
12
 AXS Eagle 12
 AXS Eagle |
|
12
 |
11
 11
 |
|
|
11
 |
||
| Enthusiast |
12
 |
|
|
11
 |
10
 |
|
|
10
 |
11
 |
|
| Entry |
9
 |
12
 Eagle |
|
9
 |
9-10
 |
|
|
9
 |
9-10
 |
|
|
7
 |
7-10
 |
Entry-level hardtails will have a triple chainset with a seven (3x7) or eight (3x8) speed cassette
Mid-level hardtails tend to have a double chainset with a nine (2x9) or ten (1x10) speed cassette
High-end hardtails get a single front chain ring with a eleven (1x11) or even twelve (1x12) speed cassette
Which are the best brakes?
There are three types of brakes found on most hardtail mountain bikes:
Rim brakes are powerful in the dry but are significantly less powerful in the wet.
Mechanical disc brakes are powerful in all weather conditions
Hydraulic disc brakes are the most powerful in all weather conditions, and also offer the best braking precision.
Wheel Size
You’ve probably noticed that mountain bikes come in a choice of wheel size, mainly a 27.5 inch wheel (also known as a 650B wheel) or a 29inch wheel (known as a 29er). Another option is 27.5+ or 6Fattie wheels which bridge the gap between 27.5” and 29” wheels. The traditional MTB wheel size is 26”, but are now only found on some small sized MTBs as well as jump bikes. The difference between these wheel sizes can have a dramatic effect on the way a bike feels and handles out on the trail.
27.5” (650b) wheels strike the ideal balance between fast rolling and nimble handling. They are lighter than 29” wheels so are faster to accelerate. On the other hand, the smaller wheel size rolls less efficiently than the larger size, making the bike more prone to losing speed over rough ground.
29” wheels roll fastest but are less nimble. These wheels are naturally smoother over rough ground but are heavier and slower to accelerate. Larger riders may find a better fit on a 29er, but smaller riders may find 29” wheels a little cumbersome.
27.5+ (6fattie) wheels feature wider 2.8” – 3.0” tyres and offer more cushioning (float) as well as more grip. With the extra size of the high-volume tyres, the overall wheel diameter is similar to a 29er so these wheels carry speed very well on rough ground. Plus sized wheels are ideal for riding more challenging terrain.
26” wheels are the nimblest and are great for smaller riders as well as jump bikes. While quick to accelerate these wheels are the slowest over rough ground.
Does tyre width make a difference?
Tyre width effects both speed as well as grip. Narrower tyres are faster rolling while wider ones offer more grip as well as more cushioning (float).
1.95” - 2.0” tyres roll quickly and are good for recreational riding and light off-roading.
2.2” - 2.6” tyres are a little slower on smooth surfaces but offer much better grip in the corners and are ideal for MTB trail riding
Plus size (6fattie) 2.8” – 3.0” tyres increase the overall diameter of the wheel so still roll quite quickly while offering a lot more grip and float. These are best for rougher terrain
Suspension Fork
The performance of suspension forks varies a lot. Forks on higher end bikes tend to offer more control and are more adjustable. Look for Fox, RockShox or Manitou forks with adjustable rebound and compression damping for the best performance on technical trails. The performance level you require will depend on what type of riding you want to do.
For recreational riding on roads and gravel tracks, you won’t need a high-performance fork. A lockout feature can be useful for more efficient climbing on roads and smoother tracks. Air sprung forks are lighter than coil sprung forks.
For cross cross-country mountain biking lightweight air sprung forks are best. Adjustable rebound damping is essential for serious off-roading and a remote lockout switch will allow you to quickly firm up the suspension when climbing.
Trail hardtails feature longer travel suspension forks for riding on rougher terrain. Adjustable rebound damping is essential for control on challenging trails. Lockout is less important on these bikes as they are catering for riders who like the downs more than the ups. Adjustable compression damping is useful as it can help you achieve optimum performance levels. Thru-axles and tapered steerer tubes improve steering control.
Finance
Delivery & Guarantee
UK Delivery Information
International Deliveries – Temporarily Suspended 11/11/20
Note: We are still offering deliveries to the Isle of Man, Scottish Highlands, Scottish Islands, Channel Islands, Isle of Wight, Jersey and Guernsey.
Courier Delivery update: Due to the COVID19 situation, we are currently experiencing some delays with deliveries. Our couriers are working around the clock to get your order to you as soon as possible but there is a potential delay of up to 48 hours . Please check your tracking on track your order here.
Please download the TNT Track and Trace App for iOS here and Android here so you can keep an eye on your delivery and any further updates.
Please note on the TNT tracking app it may show your delivery status as ‘Collecting’ (as per image below). This means your delivery has left our warehouse and is currently held at TNT main depot and there could be up to a 48 hour delay.
Please keep checking the TNT tracking for further updates. On behalf of TNT we apologise for any delay and inconvenience this may cause.
We are committed to offering fast and free delivery, whether you're ordering bikes, accessories or clothing. Our standard delivery service is FREE in the UK, regardless of the size and on all orders over £20.
Please note that bulky products and bikes shipped to outlying UK regions are excluded from free shipping.
Please note that Pre-Order dates can sometimes change due to updated stock information.
Click here for more UK and international delivery information.
Returns & Warranty
It's easy to return a product with our 365 day, hassle free returns.
We will give you a full refund on any item that is returned to us unused/unfitted, in a resaleable condition and in its original packaging (where possible).
Please note: For hygiene reasons, we cannot accept returns of facemasks, undershorts or underwear if the item has been removed/unsealed from its original packaging.
If your item develops a fault or arrives damaged, please contact us first so we can resolve the issue for you as quickly as possible.
For more information please visit our Returns & Warranty page.
What's In The Box
What's In The Box
As cyclists ourselves, we know you will be keen to get out on your new bike as soon as possible. That's why we provide you with all the essential kit you need to get your shiny new bike rolling for the first time.
Most bikes don't come with pedals as standard so we include a set of basic pedals, free of charge with every bike we send out. We will also provide you with a pedal spanner to fit them and a 9-key trail tool, along with full instructions for setting your bike up out of the box. Each bike is sent out with a 16 point, quality control check sheet so you can be confident that your bike has been fully checked by our qualified mechanics.
- Basic setup instructions
- 16 point quality control checklist
- Free tredz multitool
- Free tred pedal spanner
- Free basic pedals
- Free drawstring kit bag
- Free bike insurance voucher
All these items are provided at no extra charge and are packed into a Tredz drawstring bag that doubles up as a handy backpack for carrying your ride essentials.
- Basic bike setup instructions
- Free ‘basic’ pedals
- Free Tredz pedal spanner
- Free Tredz 9-key trail tool
- Free Tredz drawstring bag
- Free 14 Days insurance voucher
- 16 point, quality control check sheet
Tredz Service:
- Tredz bikes are fully checked & tested by Cytech qualified mechanics
- 0% APR finance available on any basket over £99
- 365 day 'no hassle' returns
- Free UK delivery, on a date that suits you
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