OPTIS (Odyssey Pneumatic Tyre Insert System) let you run lower pressures for better grip, without adding significant weight.
Compared to a normal foam insert, OPTIS can be fitted and removed much the same way as an inner tube. You can tune the feel of your bike by changing the pressure of the OPTIS, making the tyre more progressive, in the same way as you can tune your fork by adding tokens.
Inflating the OPTIS pushes the tyre onto the bead, so inflating tubeless tyres is easy, and the bead is locked onto the rim, preventing burping.
OPTIS is manufactured from material much tougher than an inner tube, so the OPTIS doesn't inflate to fill the tyre, and it'll take a huge impact to damage and puncture it. If you do manage to puncture an OPTIS, you can patch it with a normal puncture repair kit. Worst case, you can replace the tube without the valve - also helpful if you change wheel sizes.
Another huge advantage of an Optis over a standard insert is what happens when you manage to get a flat in the middle of nowhere. Granted, you can take a normal insert out and stick a tube in, but what do you do with the insert? Using an Optis makes taking the tyre off much easier, and an Optis can be rolled up and carried much easier than most inserts if you have to.
Each OPTIS weighs about 90g, so it's lighter than normal inserts. The weight is easily offset by allowing you to run lighter tyres or rims.
UK Delivery
- Orders Over £50 – Free (Royal Mail)
- Orders Under £50 – £4.95 (Royal Mail)
Our standard delivery time is 3–5 working days. We do our very best to deliver orders within this time, but occasionally there are delays outwith our control, caused by either suppliers or couriers.
USA Delivery*
Tax and duties will be calculated at the checkout. No extra charges on delivery.
- Orders Over £600 – Free (Royal Mail)
- Orders Under £600 – From £11.95 Calculated at check out (Royal Mail & Local Delivery Partners)
EU Delivery*
Tax and duties will be calculated at the checkout. No extra charges on delivery.
- Orders Over £400 – Free (Royal Mail)
- Orders Under £400 – £9.95 (Royal Mail)
Rest Of World*
- Orders Over £600 – Free (Royal Mail)
- Orders Under £600 – Calculated at check out (Royal Mail & Local Delivery Partners)
Due to the number of delivery options, the best way to get a shipping price is to add what you would like to your basket and begin the checkout. You'll be able to see the shipping price before you check out.
*Applies to most of the products we sell, but excludes bikes, frames, handlebars, wheels, & rims. Full Shipping Information Here
We pride ourselves on providing great service, impartial advice and the best knowledge gained from really using the products we sell, but we appreciate that price is important too. If you find anything we sell on our website or store cheaper elsewhere, please tell us and we'll aim to match it - even if it's a sale price.
If you do manage to find an item cheaper elsewhere, please use the form below to enter a few details about the product. A member of our friendly team will then make sure it is an identical item and qualify the competitor's price – if it’s genuine and conforms to the points below, we’ll try our very best to match or beat it.
You can call us on 01330 828562 or click here for our store contact details.
- Product being price matched must be brand new and the same model, year, colour and size, backed with the same guarantees as our stock.
- Price guarantee is only applicable against any competitor to 20Twenty Store in the Mainland UK. This includes any UK websites but excludes auction sites, market stalls, private sales, liquidation sales or any typographical errors.
- We do not price match to private resellers, e.g. Amazon or eBay.
- The competitor must have the product in stock and available for immediate purchase and delivery.
- We must be able to verify the offer with the competitor.
- Prices must include VAT and delivery charges where applicable - we offer free UK Mainland delivery with orders over £50.
- All price guarantees are at the discretion of 20Twenty Store.
- Price matches can only be offered prior to a purchase. It cannot be applied after a transaction has completed
- We reserve the right to withdraw the price guarantee at any time.
- This service is only available prior to purchase and retrospective claims will not be considered.
- We accept Gift Vouchers as full or part payment when we price match, but no further offers or discounts can be applied.
