BOA vs Laces: Cycling Shoe Closure Guide

The closure system on a cycling shoe is not a finishing detail. It determines how precisely you can dial in fit, how easy it is to make adjustments mid-ride, how the shoe performs and how long the whole system holds up. Every time you clip in, the closure is working. It's worth understanding what the options actually are before you choose.

At Lake Cycling, the range spans distinct closure approaches: 

• BOA Li2 dual-dial systems for race-level precision

• BOA L6 single-dial systems for mid-range performance

• BOA M4 dials engineered for winter and glove use

• Traditional laces for riders who prefer maximum even pressure

• Speed-lace plus strap combinations built specifically for triathlon

Each has a distinct engineering logic and a specific type of rider it serves best.

This guide covers how each system works, where it performs well, which Lake models use it, and how to decide which one belongs on your foot.

BOA Li2 Dials: Precision Micro-Adjustment at the Top of the Range

The BOA Li2 is the flagship dial in the BOA system. It uses a stainless steel lace threaded through a dual-dial mechanism that lets you fine-tune tension independently in two zones across the upper, typically the forefoot and the midfoot. You can tighten in micro-increments by rotating the dial clockwise, and you can release tension instantly by pulling the dial outward with a single motion.

What makes the Li2 significant for cycling is the bidirectional micro-adjustment. You can add a quarter-turn of tension on the fly, without stopping or unclipping. If your foot swells slightly on a long summer ride, you can ease off without touching the shoe more than once. For road racing or performance riding, where the difference between a secure fit and a pressure point matters over hours, that level of control is genuinely useful.

The Li2 system also uses a tool-free replacement mechanism. BOA backs every dial with a lifetime guarantee on the mechanism itself, meaning if the dial ever fails, BOA replaces it at no cost. Some Lake models ship with IP1 dials as an alternative to BOA depending on stock availability, so check the product page at the time of purchase for confirmation.

BOA L6 Dials: Single-Dial Performance for the Sport-Level Rider

The BOA L6 uses a single dial with the same core micro-adjustment mechanism as the Li2. The difference is that the L6 operates as a single zone rather than two independent zones, so tension is distributed across the whole upper in one action rather than adjusted at the forefoot and midfoot separately.

For most recreational and sport-level riders, the L6 delivers everything they need. You still get the clickable micro-adjustment, the instant release, and the durability. The constraint is that you cannot tune one part of the upper independently from another. If your forefoot fits snugly but your instep needs more support, a single-dial system gives you one setting that covers both zones at once.

BOA M4 Dials: Winter Performance with Gloved Hands in Mind

The BOA M4 is a single-dial system with a larger contact surface specifically designed to be operated while wearing gloves. When the temperature drops below 5 degrees, reaching down to adjust a small dial with thick winter gloves on is awkward at best. The M4 addresses that directly: the dial head is sized and textured for gloved operation.

On winter shoes, the ability to adjust while riding matters more than on a summer shoe. Cold feet tighten in unpredictable ways, insulated linings compress differently than summer uppers, and you may need to loosen or tighten the shoe during a ride as conditions change. The M4 makes those adjustments achievable without removing your gloves.

Check all our winter cycling shoes.

The benefit of Traditional Laces:

Traditional laces on a cycling shoe are not a budget compromise. They are a distinct and considered choice that several highly experienced riders prefer, and for a specific set of reasons.

1. Pressure distribution

The most significant advantage is pressure distribution. A laced upper applies tension across the entire dorsal surface of the foot in a single continuous system, rather than concentrating it at the cable paths of a dial mechanism. For riders with high insteps, broader midfoot profiles, or any asymmetry between their two feet, laces allow them to tie each shoe differently and achieve a custom fit that no dial system can fully replicate. You can create more tension at the instep and ease off at the toe box, all in a single lacing movement.

2. Repairability

The second advantage is repairability. If a lace breaks, you replace it in two minutes with any lace of the correct length. No warranty process, no waiting for parts, no tools required. For riders who travel to events, or who spend extended time away from a service setup, that matters.

3. Weight

The third is weight. A traditional lace system adds minimal hardware to the upper. Combined with a monocoque carbon sole, the result is a very clean shoe with nothing on the upper that does not need to be there.

All road lace options are listed in the road collection. Gravel and MTB options appear in the gravel and MTB collections respectively.

Speed-Laces and Strap Combinations: Built for Transition

Two models in the Lake range use closure systems that fall outside the BOA and traditional lace categories. Both are purpose-built for applications where entry speed and simplicity under pressure take priority.

The TX224 is Lake's triathlon shoe. It uses a speed-lace drawstring system combined with a single hook-and-loop power strap. The drawstring cinches the upper closed quickly during transition without requiring fine motor precision, and the power strap locks the midfoot in place with one pull. It is designed to be put on quickly, adjusted in motion if needed, and ridden hard. There is no BOA dial to seat correctly under pressure in T1. You pull, strap, and go.

The MXZ21 is a winter shoe using speed-laces on a Competition Last with a carbon midsole and rubber outsole. It is compatible with both SPD and 3-bolt cleats, features a water-resistant softshell upper, and is available in Regular and Wide. The speed-lace system here simplifies entry and exit when hands are cold, as a single pull tightens the upper without small adjustments.

Which Closure System Suits Which Rider?

There is no universally correct answer, but there are clear patterns based on how and where you ride. If you race or ride long distances at high effort and want to make fit adjustments without stopping, the BOA Li2 is the strongest choice. The dual-dial setup gives you independent control over two zones of the upper, and the micro-increments mean you can respond to foot swelling or any change in sensation without interrupting your ride.

If you are a recreational or sport-level road rider who wants BOA convenience without paying for dual-dial capability, the BOA L6 models are well-matched. You still get the click-adjust and instant release, and the price point is significantly lower.

If you ride through winter in gloves and need a closure you can operate reliably at low temperatures, the BOA M4 is designed for that specific use. The M4-equipped Lake winter shoes combine the glove-operable dial with insulated, water-resistant construction.

If you have a particularly complex foot shape, strong preferences about pressure distribution, or simply prefer a system you can repair anywhere with a spare lace, traditional laces are the right choice. The CX20R, CX21C, and CX400L in particular sit at price points where laces are not a cost-saving measure but a deliberate engineering decision on a fully performance-oriented shoe.

If you compete in triathlon or open-water events where transition time matters, the TX224 is built for that use case and nothing else in the range competes with it for entry speed.

If you want to understand how closure system interacts with fit before making a final decision the size guide provides last-by-last measurements.

BOA Lifetime Guarantee

Every BOA dial mechanism carries a lifetime guarantee. If the dial fails under normal use, BOA replaces it at no cost. This applies to Li2, L6, and M4 dials across the Lake range. The replacement process is handled directly through BOA and does not require the shoe to be returned to Lake or any retailer. For a closure system that sees daily use across years of riding, that guarantee removes a significant long-term concern from the equation.

Note that some Lake models may ship with IP1 dials rather than BOA depending on availability at the time of manufacture. If the specific dial system matters to your purchase decision, check the current product page before ordering.

Frequently asked questions

Is BOA or laces better for road racing?

Both perform at the highest level, and the choice comes down to personal preference. BOA Li2 offers the ability to micro-adjust mid-ride without stopping, which is useful on long efforts where foot volume changes. Traditional laces provide more even pressure distribution across the entire dorsal surface of the foot. Some riders find laces more comfortable on very long rides for exactly that reason. Neither is objectively superior: the better option is the one that fits your foot more precisely.

Can you replace BOA dials if they break?

Yes. All BOA dials carry a lifetime guarantee on the mechanism. If a dial fails, BOA replaces it directly at no cost. The replacement requires no tools and takes a few minutes. The lace cord itself can also be replaced. This makes BOA a genuinely durable long-term system rather than a consumable.

Are BOA cycling shoes heavier than lace cycling shoes?

The weight difference is marginal. A BOA Li2 dual-dial assembly adds a small amount of weight versus a lace system, but the difference in a complete shoe is rarely more than a few grams. For most riders, the functional difference in closure performance will matter far more than any measurable weight differential.

Which closure system works best for winter cycling?

The BOA M4 is the most practical choice for winter use. It is specifically engineered for operation with gloved hands. The dial head is larger and more textured than the Li2 or L6, making it far easier to turn with thick gloves on. All three BOA M4 models in the Lake range, the CX146, MX146, and MXZ305, are built for cold-weather riding with insulated, water-resistant uppers.

Do all Lake BOA shoes use the same BOA system?

No. Lake uses three different BOA systems depending on the tier and application: Li2 (dual dial, micro-adjustable, premium), L6 (single dial, mid-range), and M4 (single dial, glove-operable, winter). The specific system is listed on each product page. Note also that some models may ship with IP1 dials as an alternative to BOA depending on availability at the time of production.