For so long as I can keep in mind, nicer bikes have run Presta valves. They only do. However why is the Presta valve (or French or Sclaverland valve) the accepted customary? Most appear to agree that the motivation for the tiny valves was that they allowed for narrower rims.
In an effort to make bicycles lighter, the edges have been made narrower, which meant that drilling a bigger gap for a Schrader valve wasn’t the best choice for structural integrity. The Presta valve can be speculated to be simpler to inflate to increased pressures, which made it an important choice for highway tires working 100psi or extra.
For all their supposed advantages although, the Presta valve additionally has some inherent points. The valves could be a bit fragile, however extra importantly to lots of mountain bikers – they don’t play effectively with tubeless. From clogging, to proscribing the quantity of airflow for seating tubeless tires, some riders are beginning to query the Presta valve’s place in mountain biking.
Is the Presta Valve Higher? Is Schrader?
That features the riders over at Jones Bikes. Jones Bikes run plus-sized tires, so it’s not all that stunning that Jeff was in search of a greater valve choice. The reply appears pretty apparent. With large rims, there’s loads of materials for drilling a much bigger valve gap. And with the brand new Jones Spec Schrader Valves, you possibly can push lots of air into the tire to pop the tire in place. The Schrader valves are additionally supposedly higher for working decrease tire pressures. The inner spring that retains the valve closed helps stop undesirable air loss at low psi.
As an instance the purpose, Jeff Jones put collectively this Circulate Check video. Unsurprisingly, the valves with a bigger internal diameter carried out higher. Is it sufficient to justify the whole trade switching from Presta to Schrader? That is still to be seen, however for Jones clients, the selection has already been made.
All Jones Bikes and Wheels are Now Schrader Valve
From this level on, all Jones bikes and wheels have moved to Schrader valves. Even their carbon C-Rims have moved to the bigger valve, partially due to their huge 56mm width.
Jones Bikes and wheels with Schrader valve stems:
- SWB bikes
- LWB bikes
- LWB HD/e bikes
- LWB HD/e E-bikes
- 56mm large carbon C-Rims
- Jones Spec. 50mm large aluminum rims
- Jones wheelsets
Accessible now
In case you occur to have a set of Schrader valve suitable rims (or really feel comfy sufficient to drill out your rim and void your guarantee), the valves can be found now. You possibly can decide up a set of Jones Spec Schrader valves for $25, and extra valve cores and caps are additionally out there. The valves are constructed from aluminum and measure 36.5mm lengthy, and weigh in at 24g per pair.
Jones Spec. Schrader Valve Stem Specs
- Jones Aluminum Schrader valve stems with caps.
- Detachable, replaceable, valve cores.
- Sealed aluminum valve caps with built-in instruments for valve core elimination and simple air bleeding.
- Bigger inside diameter for quick and simple tubeless set-up.
- Stiffer, sturdier, and simpler to make use of than Presta valves.
- Decrease profile base which makes putting in tires simpler with out catching the tire bead on the stem.
- Beveled aluminum base for sooner/increased quantity airflow with no clogs.
- Massive stem ring nut with good grip.
- Substitute valve cores and caps out there.
- Matches 8 mm rim gap.
- Size: 36.5 mm
- Weight: 24 g (pair)
