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Product Image IRC Formula S-Light TLR tubeless ready tyres- for hookless and hooked rims

IRC Formula S-Light TLR tubeless ready tyres- for hookless and hooked rims


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Introducing the new IRC Formula Pro S-Light TLR tyre for hookless and hooked rims.

This new tyre is lighter than the previous version and uses the new RBCC II compund for improved grip. The tyre features bead protection and a new super light casing so this is the fastest tyre in the new IRC range. This tyre is has no latex inner lining so sealant will be sealing the casing. That one way it saves mass. The other is thinner sidewalls over its cousins in the Formula Pro series. 

The new RBCC is used in all FORMULA PRO series products. This tyre

The RBCC, which is loved by many for its firm grip through the bends and in wet conditions, has been used in all tyres in this series. While rolling resistance is reduced, while grip and abrasion resistance have been improved. 

Redesigned tread with a pattern that emphasizes controllability

Tread pattern to enhance 

Continuing from the previous tyre this time the center has adopted the Sugime pattern. The behavior near the limit, such as the start of tire slippage, is easier to spot and therefore more controllable. In addition, rolling resistance was reduced by adding four grooves in the circumferential direction, and the tyre is more are on uneven road surfaces as a result.

Compatible with disc brakes and wide rims

The tubeless tire, which has a structure in which the tire bead is pressed against the rim from the inside with air to retain air, is characterized by high safety due to the high degree of adhesion between the rim and the tire, but with the new FORMULA PRO series, the key is Further strengthening around the bead. We have succeeded in further improving safety so that it can withstand the stronger force applied by the disc brakes and pothole impacts. In accordance with the tubeless rim standards reviewed in 2019, it is also compatible with wide rims.


The Formula Pro series tyres unlike many other brands run true to size on a 19mm internal width rims which are used on our BORG series road wheels. 25mm tyres inflate to 25mm wide and 22mm tall. 28mm tyres are 28mm wide and 24mm tall. 30mm tyres are 30mm wide and just over 25mm tall

25mm tyre is 220g, 28mm tyre is 250g and 30mm tyre is 275g. 

80psi is the suggested max pressure. IRC state a max pressure of the sidewalls which half the max pressure at which blow off occurs in tests. I.e 90 to 115 psi means blow off occurs at 180 to 230 psi. Hense my max suggested pressure. 60 to 80 psi works well for most people.

COVID 19 update. Overseas shipping is now with a courier only. UPS or Parcel force.

U.K policy

Orders placed in the afternoon normally get sent the next workday where possible. Orders placed before noon are often sent the same day but this is not guaranteed.

Same day disptach is not guaranteed due to volume of mail order. In general we are not operating with big delays in dispatch if any.

  • Standard shipping is with DHL. Cost is £6.00 . Fully tracked with hour delivery slots. 
  • Some U.K addresses excluded from he DPD service Royal Mail is used (1st class tracked). Checkout is not sophisicated enough to know all the excluded postcodes. The areas are Channel Islands, Isle of Wight, Isle of Man Scottlish Highlands and islands (Scottish Highlands - AB31-38, AB40-56, FK17-21, IV1-40, IV52-54, IV63, KW1-14, PA21-38, PH4-41,  PH49-50
    Scottish Islands - HS IV41-51, IV55-56, KA27-28, KW15-17, PA20, PA41-49, PA60-78, PH42-44, ZE1-3)
  • Northen Island - Ropyal mail 1 st class signed for is used.
    • Rims are sent by courier only- cost £10. UPS is used. A phone number and email address must be supplied to allow me to book in. This service can also be picked for smaller items that you want delivered by UPS.
    • Wheels shipping cost is £20 (cost of courier + cost of the box) next day. To NI, Scottish Islands, Channel Islands, Isle of Man and that is a two day service.


    Courier services are used only or over seas mail. UPS or parcel force depending on destination.

    The website will provide shipping rates at checkout.

    The import charges you will face are and these will be levied by the shipping carrier or by your customs authority in advance of delivery. Customs clearance will add to shipping times. 

    You will be billed for

    Import duties which are set by the tarrif code we declare. Tarrif rates are normally published on government websites. "Free trade agreements" affect this and for EU customers there are no duties as tarrifs are set at zero for goods like our wheels that originate in the U.K. Goods that originate in the E.U  and are exported back yo the E.U attract tarriffs. Good made outside the e.u and sold into the E.U attract tarrifs. The declared value in GDP will be converted to your countries currency by the monthly rate published by your tax authority. 

    Customs clearance fees -these vary from country to country and also vary by declared value in some juristictions. 

    VAT or sales taxes and applied to  the total of the declared value of goods, customs clearance charges and import duties. 

    This shop declares the total paid for the goods for customs value, no exceptions. We will not declare low values as thats fraud and we will not be party to it.

     A word of warning once an parcel has been shipped any import charges are your reponsibility. Refusal to pay these charges to the parcel carrier mean you loose the right to an automatic refund. We refund at our discretion minus any charges we are levied by the parcel carrier. These charges cannot be disputed by us. We also reserve the right to apply a 10% restocking fee on top of any charges applied to us for the return of the parcel. Therefore once shipped charges must be paid. We can accept no liability if the parcel is lost after charges have been refused to be paid. 

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