Bike Size Charts
Specialized Road frame

Specialized Roubaix Size Chart

Match your height to this model's size range, then confirm stack, reach, and standover on the brand's geometry chart.

Find my sizeSee geometry by size
Frame sizes
52–58 cm · 4 sizes
Rider height
5'4"–6'2"
Height (cm)
163–188 cm
Stack / reach · 54
585 / 381 mm

Roubaix size finder

Which Roubaix size covers your height?

Height gives you one size, or two when the published height ranges overlap. Stack, reach, and standover settle the overlap.

ft
in

Enter your height and the Roubaix size that covers it is marked in the tables below.

How to measureHeight gives the starting size. Standover and reach confirm it.

Height ranges

Where each size starts and ends

Height ranges for every Roubaix size, 159 to 192 cm overall. 52: 163 to 170 cm. 54: 168 to 175 cm. 56: 173 to 180 cm. 58: 178 to 188 cm.

  1. 52163-170 cm
  2. 54168-175 cm
  3. 56173-180 cm
  4. 58178-188 cm
159 cm192 cm

Size chart

Roubaix size by height

Use this as a starting range. Inseam, standover, and how you like to ride still decide the final size.

52

163-170 cm

Starting size for smaller endurance riders.

54

168-175 cm

Common medium Roubaix option.

56

173-180 cm

Check front-end height and reach.

58

178-188 cm

Confirm standover and cockpit length.

Start with height. If two sizes overlap, use cycling inseam to choose.How to measure

Geometry

Roubaix geometry by size

Published stack, reach, and standover for Roubaix 2024. Height is the starting range on this page. Confirm the exact year on the official geometry source.

52

163-170 cm

Stack
566 mm
Reach
370 mm
Standover
747 mm

54

168-175 cm

Stack
585 mm
Reach
381 mm
Standover
766 mm

56

173-180 cm

Stack
605 mm
Reach
389 mm
Standover
787 mm

58

178-188 cm

Stack
630 mm
Reach
397 mm
Standover
809 mm
Stack and reach by sizeStackReachBoth bars use a 0–650 mm scale

  1. 52163-170 cm

    Stack566 mm
    Reach370 mm

  2. 54168-175 cm

    Stack585 mm
    Reach381 mm

  3. 56173-180 cm

    Stack605 mm
    Reach389 mm

  4. 58178-188 cm

    Stack630 mm
    Reach397 mm

How neighboring sizes compare

If you're 178 cm and fall inside both the 54 and 56 ranges, compare reach and standover rather than assuming the larger size is more comfortable.

How to measure a bike frame
  1. 52 → 54+19 mm+11 mm+19 mm
  2. 54 → 56+20 mm+8 mm+21 mm
  3. 56 → 58+25 mm+8 mm+22 mm

Starter kit

Helmet, light, lock, bottle, and a pant-leg strap. Size the bike here; buy the complete adult bike at a shop.

See more in Shop
Giro Register II MIPS adult bike helmet

Giro

Register II MIPS

Everyday adult helmet with MIPS and a simple dial fit.

Universal Adult, 54–61 cm

View on Amazon

Price and availability on Amazon

NiteRider Swift 300 USB bike headlight

NiteRider

Swift 300

Compact USB headlight for commuting and dusk rides.

Handlebar mount, 300 lumens

View on Amazon

Price and availability on Amazon

Kryptonite Evolution Mini-7 U-lock with cable

Kryptonite

Evolution Mini-7 with 4′ cable

Hardened U-lock plus a cable for wheels or a locked-together pair.

Fits most road, gravel, and hybrid frames

View on Amazon

Price and availability on Amazon

CamelBak Podium Chill 21 ounce bike bottle

CamelBak

Podium Chill 21 oz

Insulated squeeze bottle for everyday rides.

Fits a standard ~73 mm cage

View on Amazon

Price and availability on Amazon

Green Guru narrow pant-leg strap

Green Guru

Narrow pant-leg strap

Upcycled inner-tube strap that keeps a pant leg off the chain.

Adjustable hook-and-loop, about 16 in long

View on Amazon

Price and availability on Amazon

As an Amazon Associate we earn from qualifying purchases. Affiliate disclosure.

Bike size calculator

Find your Specialized Roubaix size

Enter your height and inseam for a Specialized road bike, then compare the result with this Roubaix chart.

Find my size

Sizing notes

Why height alone is not enough

Riders with the same height can need different sizes because inseam, torso length, flexibility, and preferred handling differ.

2 checks

  1. Roubaix is an endurance road bike, so compare comfort posture and reach rather than copying a race-bike size.

  2. If you are between sizes, start from the size that gives safe standover and a sustainable reach.

Sources

Confirm the exact bike after you have a starting size

Every number on this page comes from the sources below. Check the exact model year there before you buy.

Data reviewed:

Official Specialized geometry source →

Compare

Compare before buying

A size label does not mean the same thing across brands. Compare published geometry before you choose.

Trek Domane vs Specialized Roubaix sizeCompare Roubaix stack and reach with other bikesInteractive bike size comparisons

Related guides

More Specialized and road sizing

Once you have a starting size, compare this frame against the Specialized chart and the road guide.

Specialized bike size chart

Compare Roubaix against broader Specialized size guidance.

Read

Road bike size chart

Check road sizing by height and inseam before choosing a frame.

Read

Questions

Roubaix size chart FAQ

Short answers for Specialized Roubaix sizing.

What Specialized Roubaix size should I ride?

Use the height table as a starting size and verify the exact Roubaix model year with Specialized's official stack, reach, and standover data.

Is Roubaix sizing more upright than race-bike sizing?

Roubaix is built for endurance-road fit, but the right size still depends on stack, reach, spacer setup, and your mobility.