Schmolke TLO Gravel vs Zipp 303 XPLR SW: 162g Lighter Without the Tyre Restrictions
The Zipp 303 XPLR SW asks gravel riders to accept more weight, fewer tyre choices and ordinary steel-bearing hubs in pursuit of a very specific aerodynamic gain.
The Schmolke TLO Gravel takes the opposite approach. It removes 162g, fits flagship DT Swiss 180 ceramic hubs and gives your gravel bike a lighter, sharper response across the entire ride.
The Schmolke advantage is not hidden in a wind-tunnel claim. You feel it every time you climb, accelerate or drive the bike out of a corner.
The specifications expose the difference
| Specification | Schmolke TLO Gravel | Zipp 303 XPLR SW |
|---|---|---|
| Weight | 1,290g | 1,452g |
| Rim depth | 35mm | 54mm |
| Internal width | 25mm | 32mm |
| External width | 31mm | 40mm |
| Tyres | 40 to 45mm gravel tyres | Approved 40 to 61mm tyres only |
| Hubs | DT Swiss 180 | Zipp ZR1 |
| Bearings | SINC ceramic | Steel cartridge |
| Spokes | Sapim CX-Ray, 28/28 | Sapim CX-Ray, 24/24 |
| Spacing | Standard or Boost | Standard |
| Manufacture | Made and built in Germany | Not stated |
| Price | $4,495 | $3,150 |
Zipp states that its 1,452g figure includes tape and valves. Schmolke does not state whether tape and valves are included in its 1,290g figure.
162g lighter where it matters
Schmolke removes 11.2% of the Zipp wheelset's claimed weight.
That difference repeatedly affects how the bike rides. Less wheelset mass means less weight to accelerate after a slow corner and less weight to carry over every rise.
Faster response
The bike reacts sooner when you press on the pedals.
Easier climbing
You carry 162g less wheelset up every climb.
Sharper corner exits
Recover lost speed with less effort.
A livelier bike
Remove the dull feeling caused by heavy gravel wheels.
Zipp calls 1,452g lightweight. The Schmolke shows what a genuinely lightweight premium gravel wheelset looks like.
The Zipp aero claim comes with conditions
Zipp uses a 54mm-deep rim to pursue aerodynamic efficiency with wide gravel tyres. The claim sounds impressive until you look at what it requires.
The rim must be paired with a tyre from Zipp's approved list.
Zipp restricts the wheelset to approved tyres from 40 to 61mm.
The aero argument becomes most relevant during sustained fast racing.
You carry the additional 162g whether the aero benefit applies or not.
The Schmolke does not need a narrow use case to prove its value. Lower weight benefits the rider across climbs, accelerations, technical sections and ordinary gravel riding.
A 32mm internal rim is not automatically better
The wider Zipp rim brings tighter tyre restrictions, not an automatic performance victory.
The Zipp's 32mm internal width is so extreme that tyre compatibility becomes part of the purchasing decision. SRAM explicitly says the wheelset is compatible only with approved tyres.
The Schmolke's 25mm internal width is built for the 40 to 45mm tyres commonly used across fast gravel and mixed-surface riding. You get a modern tyre shape without building the entire wheelset around a restrictive rim and tyre combination.
Flagship hubs versus steel bearings
| Hub detail | Schmolke | Zipp |
|---|---|---|
| Hub model | DT Swiss 180 | ZR1 |
| Bearings | SINC ceramic | Steel cartridge |
| Freehub | Ratchet EXP | Six-pawl system |
| Servicing | Established DT Swiss support | Zipp-specific parts |
At the centre of the Schmolke is DT Swiss's flagship 180 hubset. SINC ceramic bearings, Ratchet EXP internals and widespread servicing support make it the right foundation for a wheelset at this level.
The Zipp uses its ZR1 hub with steel cartridge bearings. It is difficult to present that as the premium choice when the Schmolke includes DT Swiss 180s.
Schmolke uses more spokes and still weighs less
Schmolke fits 28 Sapim CX-Ray spokes to both wheels. Zipp uses 24.
Despite carrying eight additional spokes across the wheelset, the Schmolke remains 162g lighter. Schmolke has removed weight from the carbon structure and component package without depending on a low spoke count to create an impressive number.
Look at the premium upgrades you get with Schmolke
⚖️ 162g less claimed wheelset weight
⚙️ DT Swiss 180 flagship hubs
💎 SINC ceramic bearings
🔧 28 Sapim CX-Ray spokes per wheel
📐 A versatile 25mm internal rim
🚵 Standard or Boost spacing
🇩🇪 Carbon rims manufactured and wheels built in Germany
The difference goes well beyond weight. Schmolke combines a 1,290g build with DT Swiss's flagship hubs, ceramic bearings and a stronger 28-spoke build.
You get a lighter wheelset, higher-grade components and the sharper, more responsive ride expected from a genuine premium upgrade.
The verdict
The Schmolke TLO Gravel is the better premium gravel upgrade.
It is 162g lighter, uses DT Swiss 180 ceramic hubs, carries more spokes and gives riders a more practical rim profile without Zipp's restrictive approved-tyre system.
The Zipp asks you to carry more weight on every climb and through every acceleration in return for an aero claim built around specific tyres and sustained racing speeds.
The Schmolke makes your bike feel lighter, faster and more responsive throughout the ride. That is the difference worth buying.
Frequently asked questions
How much lighter is the Schmolke TLO Gravel?
The manufacturers' current claimed weights put the Schmolke at approximately 1,290g and the Zipp at 1,452g. That gives the Schmolke a 162g advantage.
Will I feel a 162g wheelset difference?
Yes. The difference is repeatedly exposed when climbing, accelerating and recovering speed after corners. The result is a gravel bike that feels quicker to respond and less reluctant to change pace.
Does the Zipp accept any gravel tyre?
No. SRAM states that the 303 XPLR SW is compatible only with approved tyres between 40 and 61mm. Compatibility must be checked before fitting a tyre.
What tyres suit the Schmolke TLO Gravel?
Its 25mm internal rim is designed around common 40 to 45mm gravel tyres. The tyre must be approved by its manufacturer for use on a hookless tubeless rim.
Is the Schmolke available for Boost frames?
Yes. It is available in standard 12x100 and 12x142mm spacing or Boost 15x110 and 12x148mm spacing.
Make your gravel bike feel lighter
Move to a 1,290g wheelset with DT Swiss 180 ceramic hubs.
Shop Schmolke TLO Gravel