Challenge Baby Limus Ultra Cyclocross 700c Tyre

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Please note: View 'Tyres Guide' below for ETRTO Sizing

Product Description

Key Features:

  • Size: 28"
  • Tyre Width: 33 mm
  • Internal Rim Width: 15-19 mm
  • Flat protection: PPS
  • BAR: 1.6-6
  • PSI: 23-90
  • Inner tube: latex
  • Weight: 405 gr
  • Casing: Silk SEALED

Occasionally, without notice, manufacturers change product design and/or specifications.

Tyres Guide

What type of tyre do I need? 

It’s best to choose a bike tyre based on the type of riding you’re going to be doing.  

Road bike tyres 

Road bike tyres are identified by a smooth tread pattern and narrow width for speed and efficiency.  

Mountain bike tyres 

MTB tyres are much wider with chunky tread for added grip on off-road conditions.  

Hybrid/ commuter tyres 

These tyres will often blend characteristics from road and MTB tyres with added puncture protection for daily durability.  

Does tyre width matter?  

Thin tyres are fastest as they have low rolling resistance and are more aerodynamically profiled.  

Wide tyres are more comfortable and stable due to the increased contact patch with the ground.  

How to check your current tyre size? 

Take a look at the sidewall of your current tyres and you’ll see one or two sets of figures;

One is the traditional size like 700x28c or 27.5x2.2.  

The first figure is the tyre diameter (size). The second is tyre width. Note: road bike sizes are in mm, MTB sizes are in inches

The other set of figures you may see is ETRTO sizing like this 28-622.

The first number here is tyre width while the second number relates to wheel diameter.

Here is a comparrison chart for traditional and ETRTO sizing to help you choose the correct tyre size.

ETRTO Number Dimension
 700c road bike wheels
 18-622  700 x 18C
 23-622  700 x 23C
 25-622  700 x 25C
 28-622  700 x 28C
 32-622  700 x 32C
 37-622  700 x 35C
 47-622  700 x 47C
 26" mountain bike wheels
 50-559  26 x 1.9
 54-559  26 x 2.1
 55-559  26 x 2.2
 58-559  26 x 2.35
  27.5" (650b) mountain bike wheels
 50-584  27.5 x 1.95
 54-584  27.5 x 2.1
 57-584  27.5 x 2.25
 29" mountain bike wheels  
 50-622  29 x 2.0
 54-622  29 x 2.1
 55-622  29 x 2.2

Will this tyre fit my wheel?   

Your new tyre must be the same diameter as your current one (to fit your wheel rim).  

Then, you need a choose a tyre which will fit your frame.  

Road bike tyres are generally 21 – 28mm wide 

MTB tyres can range from 1.5”-5” 

To make things complicated road tyres are measured in mm, while MTB tyres are in inches.  

How wide is too wide  

You want to leave at least 4mm clearance between your frame and tyres to prevent rub and allow for mud clearance. 

Measure the following areas on your frame: 

Fork crown (top) 

Brake calipers (make sure you squeeze them) 

Chainstays 

Seatstays 

Subtract 4mm and you’ll have the maximum width your frame can handle.  

What is the best type of tyre for daily riding? 

If you’re commuting, riding and training daily you’ll want a tyre with some form of puncture resistance. 

Puncture resistance often comes in the form of a harder or thicker rubber compound, or a protective layer running underneath the tread pattern.  

What are tubeless tyres 

Tubeless tyres do not have an inner tube. The tyre and rim of your wheel (you need a tubeless ready rim) create an airtight seal with the valve directly mounted on the rim. 

You can run these tyres at lower pressures for an improved ride quality. A bigger contact with the ground means you have improved traction when cornering. 

Tubeless tyres often come with liquid sealant that creates a seal that may heal itself on a small puncture so you can keep riding home.  

Finance

How do I apply for finance?

Spend £99 or more at Tredz and you can spread the cost. Pay monthly over 6-48 months, interest free (dependent on repayment terms and amount).

1Fill your basket with everything you want from Tredz and go to the checkout.

2During checkout, select the finance option you want as your method of payment.

3You will be sent to our finance provider's secure server to complete your application.

4Finance providers PayPal & V12 will use the information provided to make a decision and complete checkout if you are approved.

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V12 Representative Example: If total purchase price is £1,399.00 with a deposit of £139.90 (10%) and your selected term is 36 months Classic Credit 15.9% APR Representative (interest rate 8.17% fixed), you would pay £43.55 per month. Total amount of credit will be £1259.10 with a cost of credit of £308.70 after a deposit of £139.90. Total amount payable is £1707.70, subject to terms and status.
PayPal Credit Representative Example: Representative 21.9% APR (variable), Purchase interest rate 21.9% p.a. (variable), Assumed credit limit £1,200.00.

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.

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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.

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