Winter Bike Tires and Studded Tires: Studs, Pressure and Break-In

You need studded bike tires if ice is part of your route and you can’t always see it or ride around it: freeze-thaw mornings, shaded bike paths, rutted ice on side streets, frozen trails. Rubber alone, even a soft winter compound with sipes, slides on clear ice. If your winter means cold, wet pavement and the odd dusting of snow, a non-studded winter tire rolls faster and quieter.

Stud count follows the ice. Commuter tires with about 90 to 140 studs handle patchy ice on cleared roads. Tires with 200 to 260 studs suit regular ice, rutted snow and untreated paths. Tires with 370 to 408 studs are built for icy singletrack and frozen lakes. If you buy only one, fit it to the front wheel. Run new studs in for about 40 to 50 km before you lean on them, and drop the pressure toward the tire’s minimum on ice.

Icebike has covered winter riding since 1998. The figures below come from the makers’ own spec pages (Schwalbe, Suomi Tyres, 45NRTH and Continental, checked October 15, 2026) and from Icebike’s archive, labeled where used.

Do you need studded bike tires? Match the tire to the surface

Pick the tire for the worst surface you ride at least once a week. 45NRTH calls studs a smart choice wherever temperatures swing around freezing, because melt refreezes into ice you can’t see. It also lists the cases where you may not need them: dry winters, places that rarely drop below freezing, and riders who stay on groomed snow trails with frequent fresh snow.

The stud ranges are Icebike’s grouping of current models, set out by size below. To run your own route through the same logic, use the studded tire selector: it weighs ice frequency, snow depth, how much of the ride is pavement and your bike type.

Skip studs if you would ride them on dry pavement nine days out of ten. Schwalbe’s own suggestion for riders who rarely see ice is to fit studded tires to a second bike and choose the bike each morning.

Studded vs non-studded winter tires

A non-studded winter tire relies on a cold-weather compound and sipes, the thin cuts in the tread blocks. Schwalbe’s Marathon 365 is that kind of tire: the maker describes a siped tread for “cold, wet and snowy conditions”, and it carries no metal. On clear ice the difference is metal. Schwalbe says only winter tires with spikes give you safe grip on snow and ice, and 45NRTH adds that studs still don’t match the grip of a dry road, so you need to allow extra stopping distance.

How many studs does a bike tire need?

Icebike’s rule of thumb: most commuters do well with 200 to 260 studs, riders on cleared city streets can drop to about 90 to 140, and only icy trail riders need 370 or more. Makers sell the same tread with different counts: Suomi Tyres builds its Routa in 42-622 (700×42) with 124 or 248 studs, and Continental names its Contact Spike tires by count: 120 or 240. Fewer studs means less noise, weight and pavement wear; more studs means more of them touch the ice at any moment.

Counts change with size, so check the exact version: Schwalbe gives only “up to” figures. Continental’s Contact Spike 120 and Contact Spike 240 carry 120 or 240 spikes; Continental lists their sizes on its own site.

Skip the high counts if you ride mostly pavement. 45NRTH tells riders to avoid pavement after break-in because it wears studs faster, and a 400-stud tire puts that wear on far more metal.

Studded tires worth considering

One tire from the tables above for each common job. Icebike hasn’t ride-tested them; each pick rests on the maker’s published specs. Icebike earns a commission on Amazon purchases made through links in this section.

Schwalbe Marathon Winter Plus: mixed pavement and ice

Schwalbe now sells it as the Marathon Plus Spike, from 20 in to 29 in. Choose it over the Hile W240 if punctures worry you more than weight. Skip it for icy singletrack, where the Ice Spiker Pro’s higher count earns its weight.

Suomi Tyres Hile W240: narrow frames

The Suomi Tyres Hile W240 carries 240 full-steel studs and comes as narrow as 32-622 (700×32), made in Lieksa, Finland, for hybrids and gravel bikes with little room around the tire. Suomi Tyres lists a running pressure of 2.4 bar (35 psi). Skip it for icy singletrack, where Suomi’s own Piikkisika carries 372 to 408 studs.

45NRTH Gravdal: black-ice bike lanes

The 45NRTH Gravdal carries 252 studs in 700×38, with a tubeless version using concave carbide studs. In 2022, 45NRTH described the Gravdal’s studs as sitting “on the side lugs” for black-ice bike lanes, a layout that suits riders who lean into ice more than they brake straight on it. Skip it for frozen lakes and sheet ice, where center studs do the braking.

Schwalbe Ice Spiker Pro: icy trails and frozen lakes

Its closest rival, the Suomi Tyres Piikkisika, carries 372 to 408 studs. Schwalbe lists 26 to 54 psi (1.8 to 3.7 bar) for the current wire-bead 27.5×2.25 (57-584); the folding version the card links may differ. Skip it for commuting: 400 studs on asphalt add noise and wear with no gain on bare roads.

45NRTH Dillinger 5: fat bikes

Against Schwalbe’s Al Mighty (26×4.80), which comes studded or spike-ready, the Dillinger 5 lists 258 studs on its spec sheet and uses a 120 TPI tubeless casing. Skip it on a fat e-bike: 45NRTH says the extra torque and weight cause early casing wear and stud loss.

Center studs vs shoulder studs: what each does on glare ice and in ruts

Where the studs sit matters as much as how many there are. 45NRTH places the Dillinger 4’s studs in the “transition and side lugs” and the Wrathlorde’s 300 in the “center, transition, and side lugs” for the iciest conditions. Suomi Tyres says it arranges the Piikkisika’s studs so the maximum number touch the ground at every moment.

Icebike’s reading of those layouts, from how a tire meets the ground:

• Center studs touch down when the bike is upright. They do the work on glare ice when you ride straight, start from a stop or brake in a line, the moments a shoulder-only tire spends on bare rubber.
• Shoulder studs touch down when you lean into a turn, when the tire slips sideways, and when the tread climbs the wall of a frozen rut. Shoulder-only tires roll quieter on pavement because the metal stays off the road while you ride upright.
• Pressure moves the line. Lower pressure flattens the contact patch and brings shoulder studs onto the ice; higher pressure narrows it to the center. 45NRTH tells Xerxes riders to run minimum pressure for traction and maximum pressure for a quieter, faster ride on clean roads.

Icebike’s archive agrees. Crystal Waters found her side-studded Nashbar tires rolled with little noise or drag at 60 psi on hard surfaces, and an older Icebike screw-stud build guide told readers to skip the middle knobs, because center studs wear fastest and grip matters most in turns.

Choose center-plus-shoulder studding if you meet clear, flat ice: frozen lakes, sheet ice on paths, black ice at stop signs. Shoulder-weighted tires suit commuters on mostly bare roads who meet ice in patches and ruts. Studs only help if you ride the ice well; our guide to winter cycling techniques for snow and ice covers braking, cornering and ruts.

Carbide vs steel studs

Buy carbide-tipped studs if your tires will see any pavement. A stud has a body, which sits in the rubber, and a tip, which touches the ice. Makers put tungsten carbide in the tip for wear resistance, and some use aluminum bodies to cut weight.

• Schwalbe says its spikes have a core of “extremely wear-resistant” tungsten carbide, that they sink a little and their corners round off over time, and that its studded tires last several thousand kilometers.
• 45NRTH sells both “carbide steel” and concave carbide studs, depending on the tire version. Its guide says the concave studs’ aluminum base saves weight and resists corrosion, and offers XL studs for deep winter, Large for all-round trails and Standard for commuting.
• Suomi Tyres fits full-steel studs to the Routa and Hile W240, and aluminum crown studs with a hard-metal pin to the Piikkisika, whose stud sockets are molded into the tread so the studs don’t come loose.

From the Icebike archive: the stud hardness test

Icebike mailing list members once sent studs from three tires to metallurgist Bill Dobson, who cut cross-sections and measured hardness with a diamond indenter. The Nokian and IRC studs used a steel body with a brazed insert; the Nashbar stud was a single piece of hardened steel.

Dobson warned that the harder Nokian stud would not “last 5 times longer” than the Nashbar. He concluded only that the inserted studs were far more wear-resistant, and that he would expect the all-steel stud to wear on roads while holding up longer on dirt or ice. Nashbar later replaced the tire he tested. Riders’ reviews of the Nashbar and Nokian tires from the same period sit on Icebike’s studded tire archive page.

Skip the price premium for carbide only if your tires live on snow-covered trails and almost never touch pavement.

Sizes and fat bike options

Studded tires now come in every common wheel size from 20 in to 29 in and up to 4.8 in wide. Road bikes can run them if the frame clears 30 mm (45NRTH Xerxes) or 32 mm (Suomi Tyres Hile W240). Kids’ bikes are covered too: Schwalbe makes the Marathon Plus Spike in 20 in (42-406 and 55-406) and 24 in (47-507), and Suomi Tyres makes the Routa in both sizes.

On a 29er or plus bike, the Ice Spiker Pro (up to 29×2.60) and Piikkisika (up to 70-622) give maximum studding without fat bike clearance; fat bike options are in the picks above.

Before you order a wider winter tire, measure the frame, fork and fenders. Our bike tire clearance checker works out whether the new width fits with room for snow and slush.

Skip 45NRTH tires on an e-bike: its Xerxes, Kahva and Dillinger 5 pages advise against power-assist use. Suomi Tyres sells e-bike versions of the Routa.

Tire pressure on snow and ice

Run studded tires toward the bottom of the maker’s range on ice and snow, and toward the top on clear roads. Lower pressure puts more studs and more rubber on the surface. Higher pressure cuts stud noise and rolling drag: Schwalbe says to pump up when the roads clear, especially on its Marathon models. Never go below the minimum printed on the sidewall.

We converted Suomi Tyres’ bar figures at 14.5 psi per bar. 45NRTH lists one psi figure per version without calling it a maximum; for its fat tires it can only be a ceiling.

Studded bike tire pressure by width: where to start on ice

These starting points are Icebike’s, built from the makers’ minimums above. Start here on ice, then add pressure in small steps if the tire feels vague or you hit the rim.

The same 45NRTH post warns against setting fat bike pressure indoors: cold outdoor air drops it further once you’re outside.

For a starting number based on your weight, tire width, surface and tube or tubeless setup, use our winter bike tire pressure calculator. If its result falls below the minimum on your sidewall (30 psi on most Marathon Plus Spike sizes), use the sidewall minimum. Skip the low end with inner tubes on rough, frozen ruts, where low pressure invites pinch flats.

How to break in studded tires

Ride new studded tires about 40 to 50 km (25 to 31 miles) on pavement, at an easy pace, before you trust them on ice, so the studs settle into their sockets. The makers agree on the method and differ on distance:

Studded tire checklist

1. Mount each tire following the rotation arrow on the sidewall, if it has one.
2. Icebike’s suggestion: set pressure in the middle of the maker’s range for break-in.
3. Ride 40 to 50 km on clean pavement with gentle starts and stops, before the first freeze if you can.
4. Replace lost studs with the maker’s own studs and tool (Schwalbe and 45NRTH both sell them).
5. Replace the tire when the stud corners are rounded off. Schwalbe says worn, rounded spikes lose grip on ice and snow.
6. At the end of the season, clean the tires, oil the studs and store them at room temperature, as Suomi Tyres advises.

Our winter bike maintenance guide covers salt and grit on the rest of the bike.

Are studded bike tires legal?

In most places, yes. Schwalbe’s answer is that many countries restrict spikes on motor vehicles, while spikes on bicycles are generally allowed. Studded-tire laws are mostly date windows written with cars in mind. Washington state, for example, makes it unlawful to use metal studs between April 1 and November 1 under RCW 46.37.420, and the statute speaks of “any vehicle” without mentioning bicycles.

Check your own state, province or country if you ride studs on public roads outside winter, or if your e-bike is plated as a motor vehicle.

The cost of studs: noise, weight and rolling drag

None of the four makers publishes rolling resistance figures for studded tires, so compare weight: Schwalbe lists the Marathon Plus Spike 50-622 at 1,265 g against 1,100 g for the non-studded Marathon 365 in the same size. Part of that 165 g comes from the Plus Spike’s 5 mm SmartGuard layer. For the noise, Schwalbe and 45NRTH give the same fix: more pressure on clear roads.

Studs also cost money. Schwalbe’s recommended retail price starts at EUR 45.90 for the studless Marathon Plus and EUR 69.90 for the Marathon Plus Spike, which shares its SmartGuard layer: about EUR 24 more per tire for the studs. 45NRTH’s list prices run from $75 (Xerxes) and $80 (Gravdal) to $145 (Kahva) and $230 (Dillinger 5) per tire. Prices checked October 15, 2026.

Quick answers

Can you use just one studded tire?

Yes, and put it on the front. Icebike’s archive build guide put it plainly: a studded front tire keeps you upright, and studding the rear as well is better still. Our studded tire selector gives the same advice.

Do studded bike tires work on dry pavement?

Yes. Schwalbe says its spikes give secure grip on asphalt because they claw into it as they do into ice, and it suggests raising the pressure on clear roads to cut the spike noise. The cost is wear: 45NRTH tells riders to keep studded tires off pavement where they can after break-in.

How long do studded bike tires last?

Schwalbe says several thousand kilometers. Replace the tire once the stud corners have rounded off, because Schwalbe says worn, rounded spikes lose grip on ice and snow.

Can you put studded tires on a road bike?

Yes, if the frame clears at least 30 mm. Among the tires in this guide, the narrowest are the 45NRTH Xerxes (700×30, 140 studs) and the Suomi Tyres Hile W240 (32-622, 240 studs). Check clearance with fenders fitted.

Sources

• Schwalbe. Winter Tires (Technology/FAQ) (accessed October 15, 2026). Up to 240 spikes on Marathon Winter Plus, Schwalbe Winter with half the spikes, Ice Spiker Pro up to 402, use on asphalt and pressure for noise, legality, run-in of about 40 km, tungsten carbide cores, wear and replacement, second-bike advice.
• Schwalbe. Marathon Plus Spike, Ice Spiker Pro, Al Mighty and Marathon 365 and Marathon Plus product data (accessed October 15, 2026). Sizes, weights, minimum and maximum pressure, recommended retail prices, renaming of Marathon Winter Plus.
• Suomi Tyres. Routa, Hile W240 and Piikkisika (accessed October 15, 2026). Sizes, stud counts and stud types.
• Suomi Tyres. Winter Tyres User Guide (PDF, accessed October 15, 2026). Running and maximum pressures, 50 km running-in, e-bike note, storage.
• 45NRTH. Stick It to Winter: A Guide to Studded Tires (October 27, 2021; accessed October 15, 2026). When studs help and when they don’t, concave stud types, break-in, pavement wear, stud shed.
• 45NRTH. Our Top Three Studded Bicycle Tires (December 7, 2022; accessed October 15, 2026). Stud placement on Gravdal, Dillinger 4 and Wrathlorde.
• 45NRTH. Rules of Fat: Dialing in Tire Pressure (Danielle Musto, March 1, 2016; accessed October 15, 2026). Fat bike starting pressures on hard-packed and loose snow; setting pressure indoors.
• 45NRTH. Xerxes, Gravdal, Kahva and Dillinger 5 specifications (accessed October 15, 2026). Sizes, stud counts and types, pressure figures, list prices, power-assist warning, normal stud loss.
• Continental. Contact Spike 120 and Contact Spike 240 (accessed October 15, 2026). Model names and spike counts (page descriptions: “with 120 spikes”, “with 240 spikes”).
• Washington State Legislature. RCW 46.37.420, Tires: restrictions (accessed October 15, 2026).
• Icebike archive. Nashbar Studded Tires and Nokian Winter Cycling Tires, including Crystal Waters’ Nashbar review. Bill Dobson’s stud hardness report for the Icebike mailing list and the screw-stud build guide appeared on earlier versions of this page.