Tioga

We've been safely sending orders around the world since 2010. There's a handy shipping calculator on the shopping cart page so you can see the cost of postage as soon as you've added it to your basket. Your order will be carefully packed and sent with tracking & insurance, we despatch most orders within 2-3 days but larger items and orders placed before the weekend can take an extra day or two to process.

We accept returns, please notify us within 14 days and ensure the item arrives back with us no later than 30 days after the order was received.

We don't charge VAT, however, if buying from outside of the UK please remember that there may be import fees to pay directly to the delivery company before receiving the order. Unfortunately we can’t advise on the exact costs as it varies from country to country, so please check your national rates before purchasing.

Bottom Bracket Type - ‘square taper’, as the name suggests have square shaped axle ends that slot into the chainset and ‘cottered’ axles are round and secured by pins - pretty much every bike up until the 1990s would use one of these, cottered being the much earlier system.

Thread Type - this must match the bottom bracket thread on your frame. The 3 common thread types on classic and vintage bikes are English (also known as British or ISO), Italian & French, and are usually (not always!) found on frames built in their respective countries. If you're replacing cups, they often have the thread type stamped on one of them, if not there are a couple of things to look at; bottom bracket shell width (English & French = 68 mm, Italian = 70 mm) & drive side cup thread direction (English = left, Italian & French = right). The only curveball to watch out for here, although pretty uncommon, are Swiss threads (also found on some French frames, Motobecanes being one) which will have the same shell width & thread direction as an English thread frame but the actual thread pitch will be different. If none of the above matches what you have, there are a few lesser known varieties that will require some further research.

We've been safely sending orders around the world since 2010. There's a handy shipping calculator on the shopping cart page so you can see the cost of postage as soon as you've added it to your basket. Your order will be carefully packed and sent with tracking & insurance, we despatch most orders within 2-3 days but larger items and orders placed before the weekend can take an extra day or two to process.

We accept returns, please notify us within 14 days and ensure the item arrives back with us no later than 30 days after the order was received.

We don't charge VAT, however, if buying from outside of the UK please remember that there may be import fees to pay directly to the delivery company before receiving the order. Unfortunately we can’t advise on the exact costs as it varies from country to country, so please check your national rates before purchasing.

Extension Length (ctc)* - measured from the centre of the handlebar clamp to the centre of the steerer clamp, to the nearest 5 mm. This measurement is taken through the middle of the extension, not along the top or bottom.

Steerer Size (OD) - OD means outside diameter, this is the most important measurement when checking the stem fits your bike. This should match the measurement of the outside of your fork's steerer column, where the stem will be clamped.

Bar Clamp Size - this should match the outside diameter of your handlebars and should be as close as possible to ensure a good and safe fit.

Stack Height - the height of the part that clamps to the forks. This is the minimum amount of space you will need on the fork's steerer column for the stem to fit (minus a few mm as the top of the steerer tube needs to sit just below the top of the stem).

Angle - the angle of the stem's extension in relation to the the fork steerer. Bear in mind the steerer sits at the same angle as the head tube, so a 90 degree stem would not be parallel to the ground. Some manufacturers refer to this as rise or drop, in which case an 80 degree stem would drop 10 degrees from a right angle. Most a-head stems can be flipped although it does depend on the design.