160mm MTB Cranks Guide: How to Choose the Right Length

In the last year, more trail and enduro riders have switched to sub-165mm lengths to avoid hitting the pedals and make it easier to move around on technical terrain. This guide tells you when 160mm really makes a difference and when it’s just marketing noise. If you’re like most people, you don’t need to think too hard about this: crank length is less important than how well your bike fits and how you ride.

Shorter cranks change how much leverage you have, how fast you can spin up, and how high off the ground you are. But unless you’re shorter than 5’6″ or ride aggressive enduro lines, the difference in performance between 170mm and 160mm is small. The real win? Less clipping of pedals on rocky descents. We’ll talk about what matters, like Q-factor, spindle compatibility, and chainring options, and what doesn’t, like claims of small power loss. Let’s get started.

MTB cranks that are about 160mm

The drivetrain of an MTB crank turns the movement of your legs into rotational force. Most of the time, crank length is measured in millimetres and is the distance from the center of the bottom bracket axle to the center of the pedal axle. 170mm and 175mm have been the standard for a long time, but shorter riders and those who value agility over raw torque are starting to like 160mm cranks more.

Also read

How Much Protein in 1 Cup of Greek Yogurt: A Complete Guide

People often use these shorter arms for:

Also read

How Much Protein Is in 1 Cup of Greek Yogurt? Guide

• Enduro and downhill riding (to avoid hitting the pedals)
• Bikes with low bottom brackets, which are common on modern long-low slack frames
• Riders who are less than 5’7″ (170 cm) tall and want to improve their pedalling symmetry should get eMTBs with high-torque motors where leverage isn’t as important.

Compared to a 170mm crank, a 160mm crank lowers the lowest point of the pedal stroke by almost an inch. This can be very important on trails that aren’t level, where every millimetre of clearance matters.

Why 160mm MTB Cranks Are Getting More Popular

The trend toward shorter cranks has sped up lately, not because they make more power, but because modern bikes and riding styles need more ground clearance. As the geometry has changed to have slacker head angles and lower bottom brackets, pedal strikes have become more common, especially on hardtail and short-travel trail bikes.

Riders are learning that being able to move around is often more important than how much power they can put out on paper. Dr. J MTB’s 2024 review showed that longer cranks do give you a little more torque leverage, but for most riders, the difference in how well they perform on the trail between 160mm and 170mm is very small.

Also, eMTBs with strong mid-drive motors don’t need long levers as much. With instant torque, riders can spin shorter cranks quickly and easily without feeling like they don’t have enough gear. This change is part of a bigger shift from thinking about “maximum efficiency” to making decisions based on “optimal fit.”

If you’re like most people, you don’t need to think too hard about this: trends come and go, but personal fit stays.

Different Ways and Approaches

Three main ways that riders deal with crank length are:

1. The traditional long-arm approach (170–175mm)
   Still the most popular, especially with taller riders and XC racers.
   • Pros: More torque per stroke, feels familiar.
   • Cons: Higher risk of pedal strike, doesn’t fit shorter riders well.
   • When you should care: If you’re over 6’0″ and ride smooth, hilly trails.
   • If your current cranks aren’t causing strikes or knee strain, you don’t need to think about it too much.
2. Short-Crank Optimisation (155–160mm)
   Enduro riders, shorter people, and technical trail pilots all like it.
   • Pros: More clearance, faster cadence response, and a better cornering stance.
   •  Downsides: Less leverage at low speeds, hard to find.
   • If you often clip your pedals or feel stretched in the saddle, it’s worth caring about.
   • You don’t need to think too much about it if you’ve never had fit problems or mostly ride fire roads.
3. Approach of Custom Fit First
   Used by professional fitters and riders who are interested in biomechanics.
   •  Pros: Matches the length of the crank to the length of the femur and the angle of the pelvis.
   •  Cons: Needs to be fitted by an expert, and it’s harder to reverse-engineer at home.
   • When it matters: if you have chronic pain or are trying to get better for a competition.
   • When you don’t need to think too hard about it: For people who ride casually and don’t have any pain or problems with their bikes.

This piece isn’t for people who collect keywords. It’s for people who will really use the product.

Important Features and Specs to Look At

Don’t just think about how long it is. These specs tell you if something will work with other things and how it will work in the real world:

Also read

How to Do a 1 Day Fast Safely – A Complete Guide

• Is the bottom bracket compatible with square taper, ISIS, Hollowtech II, DUB, or direct mount? Your frame’s BB standard should match.
• Chainring Mount Type: Direct mount (stiff, lightweight) or spider-based (flexible ring swaps).
• The spindle diameter is 24mm, 28mm, or 30mm, which affects how stiff it is and how long the bearings last.
• The Q-Factor is the space between the pedals. Wider means more stable, but the pedal stroke isn’t as good.
• Aluminium is cheap, chromoly steel is strong, and carbon is light and expensive.
• Offset and chainline make sure that the chain lines up smoothly across all the gears.

Pros and Cons

Pros of 160mm MTB Cranks

• Less hitting rocks and roots with the pedals.
• More space between the ground and the car in steep corners.
• Easier cadence change, especially when going up.
• Better fit for people who are less than 5’8″ tall.
• Less hip rocking at the top dead center.

 Limits and Trade-offs

• Slightly less leverage (only noticeable when the load is heavy).
• Not as many model options as 170mm+.
• Possible limits on the size of the chainring (minimum number of teeth).
• Short-length cranks that are of higher quality cost more.

When it matters: technical trail riders, shorter people, and low BB bikes.

When you don’t need to think too hard about it: people who ride upright trail bikes casually and don’t have any clearance problems.

A Guide to Choosing 160mm MTB Cranks

To find out if 160mm is right for you, do these things:

• Check your height and inseam: Riders who are shorter than 5’6″ (168cm) usually do best with 160mm or shorter.
• Check how often you hit the pedals: If you hit them a lot on climbs or turns, shorter arms help.
• Check Frame Clearance: Use a ruler to measure the space between the chainstay and the crank arm when the pedal is at its lowest point.
• Check the Bottom Bracket Standard: Don’t just assume that the parts will fit together; check the width of the BB shell and the type of axle.
• Think about your chainring choices: With some 160mm cranks, you can only use smaller rings (like 30t max).
• Don’t upgrade just because it’s the latest thing. If your current setup works, there won’t be a miracle in performance.
• You don’t need to think about this too much if you’re a normal user: function beats fashion.

Analysis of Costs and Insights

The price of 160mm MTB cranks varies a lot depending on the brand and the material:

Most riders won’t notice the difference off-road, even though premium models are lighter. Don’t spend money unless you’re racing or chasing grams.

Better Solutions and Analysis of Competitors

There isn’t one brand that rules the 160mm space, but some do stand out:

For most people, SRAM or Race Face is the best choice because it is both durable and fast. Even though the fit isn’t always the same, budget-conscious shoppers may still prefer Samox.

Combining Customer Feedback

There are some common themes in Reddit threads and YouTube comments:

•  Lots of positive feedback: “Finally stopped hitting pedals on climbs,” “Feels more natural in corners,” and “Easy to switch from 170mm.”
•  People often say, “It’s hard to find in stock,” “More expensive than longer versions,” and “Didn’t feel faster, just different.”

Many users say they feel better mentally when there are fewer strikes, even if the power metrics don’t change. Some people wish they hadn’t switched because it made climbing steep grades feel less efficient.

Taking care of things, safety, and the law

Shorter cranks don’t need special care, but you should follow these rules:

• Follow the manufacturer’s instructions for torquing bolts, especially pinch bolts.
• Check for cracks around the interface between the pedal eye and the spindle.
• For systems that don’t use cartridges, use threadlocker.
• Make sure the chainring bolts are tight so the bike doesn’t wobble.

There are no legal limits on the length of a crank. But UCI rules say that any length is fine as long as it doesn’t change the frame. Always check the rules for the event before racing.

Conclusion: Who Should Change?

Choose 160mm cranks if you need more clearance on the trail and want to ride on rough terrain. They are great for shorter riders, enduro pilots, and anyone who is sick of pedal strikes. Stick with 170mm or more if you’re tall, ride smooth trails, or climb while sitting down a lot.

Also read

1 Day Fast Benefits Guide: What You Need to Know

If you’re like most people, you don’t need to think too hard about this: comfort and control are more important than small details on a spec sheet.

Also read

How to Use 1 Cup of Extra Light Virgin Olive Oil: A Practical Guide