Bola 700c 35mm Asymmetric Carbon Tubeless Rim, 28mm Wide

If you’re a home‑builder, bike mechanic, or rider chasing that sweet middle ground — light‑enough for climbing, aero‑enough for flats, stable in cross‑winds — the Bola 700c 35 mm Asymmetric Carbon Rim deserves your attention.
Lots of carbon rims on the market are either super‑shallow and slow on the flats, or deep‑section and twitchy when gusts hit. At 35 mm depth, this rim lands right in that popular sweet spot for road racing, gran fondo, fast endurance rides and light‑duty mixed‑surface all‑road use. The real secret sauce is its asymmetric offset profile, built specifically for disc‑brake wheel geometry.
Anyone who has laced disc‑brake wheels knows the headache: drive‑side vs non‑drive‑side spoke angles create uneven tension. Over time, that leads to truing drift, fatigue and shorter wheel life. Bola’s asymmetric shaping re‑positions carbon material across the rim bed to balance spoke bracing angles. Once professionally built, you get more even spoke tension, snappier power transfer and fewer truing sessions mid‑season.

Geometry breakdown:
Outer width: 28 mm
Choose your internal width: 21 mm or 23 mm
21 mm internal: best for 25‑38 c race‑oriented road tyres
23 mm internal: great for 27‑40 c endurance / light‑gravel tubeless tyres
ERD: 568 mm, easy for builders to calculate accurate spoke lengths.
Fully tubeless‑ready out of the box. Mount tubeless tyres, add sealant, and drop pressures for better comfort and puncture resistance. It also works fine with standard clincher tyres and inner tubes, giving you total setup flexibility.

Pick your weight tier to match your riding priorities:
- 330 g Extreme‑Light: hill‑climb race build, minimal rotating mass
- 350 g Ultra‑Light: race‑day balance of weight and strength
- 370 g Super‑Light: gran fondo / frequent training
- 415 g Standard: extra toughness for rough roads and higher‑weight riders

Material is high‑grade Toray carbon‑fiber. Finish options include UD Matte, UD Glossy, 3K Matte, 3K Glossy. Multiple spoke‑hole drillings (20 / 24 / 28 / 32 H) let you match whatever hub you plan to use.

Every rim goes through ISO 4210‑7 lab fatigue and impact testing. Our in‑house QC checks roundness, flatness, concentricity and spoke‑hole alignment before shipping. Max system weight is 105 kg for professionally assembled wheels.

Real‑world builder perspective
We hear the same feedback over and over from mechanics and DIY customers: most off‑the‑shelf complete wheels lock you into fixed hub‑spoke combinations. Buying this bare rim puts full control in your hands. Run DT Swiss, Chris King, or your favourite budget hub; pick Sapim or your preferred spokes; tune weight and durability exactly for your routes. Many customers build these for race‑weekend wheelsets, backup training wheels or to replace one cracked rim instead of buying a full expensive new wheelset.

What this rim is great for
✅ Road racing, criteriums, hill‑climb events
✅ Gran fondo, long‑distance endurance road
✅ Fast all‑road / light gravel with 25‑40mm tyres
✅ Custom DIY wheel builds, single‑rim replacement
Not ideal for
❌ Heavy‑impact gravel, cyclocross mud racing, mountain biking
❌ Riders exceeding 105kg total system weight
❌ If you want a ready‑to‑ride complete wheelset (this is bare rim only)

Builder heads‑up
You need correct spoke‑length calculation, proper lacing and accurate spoke‑tension calibration. Poor wheel‑building will cause damage and void the manufacturing warranty. If you lack experience, take the rim to a trusted local bike shop.

Important upfront note: This listing sells single bare rim only. Hubs, spokes, nipples are sold separately. Perfect for DIY wheel builds or replacing one damaged rim on your existing set.