
Giro
Register II MIPS
Everyday adult helmet with MIPS and a simple dial fit.
Universal Adult, 54–61 cm
View on AmazonPrice and availability on Amazon
Allez Sprint uses Specialized's centimetre labels from 49 to 61 cm, and the height chart starts at 49 as well. The 44 cm size only exists on the standard Allez. Specialized publishes the size chart and the geometry on the Allez Sprint Frameset page, and the numbers are the same on the 2024 and 2027 product pages.
Allez Sprint size finder
Height gives you one size, or two when the published height ranges overlap. Stack, reach, and standover settle the overlap.
Enter your height and the Allez Sprint size that covers it is marked in the tables below.
How to measureHeight gives the starting size. Standover and reach confirm it.
Height ranges
Height ranges for every Allez Sprint size, 151 to 200 cm overall. 49: 155 to 163 cm. 52: 163 to 170 cm. 54: 170 to 175 cm. 56: 175 to 183 cm. 58: 180 to 188 cm. 61: 188 to 196 cm.
Size chart
Specialized publishes the same Allez height chart for the Sprint and the standard Allez. The inch and centimetre tables are separate: 54 reads 67-70 in on one and 170-175 cm on the other.
49
5'1"–5'4"
155–163 cm
Smallest Sprint size. The standard Allez adds a 44 cm below it, which has no published height range.
52
5'4"–5'7"
163–170 cm
Only 5 mm more reach than 49, so stepping up here raises the front end rather than lengthening the cockpit.
54
5'7"–5'10"
170–175 cm
The middle of the range and the most common size. 537 mm stack and 387 mm reach.
56
5'9"–6'0"
175–183 cm
Largest cockpit step in the table: 11 mm more reach than 54.
58
5'11"–6'2"
180–188 cm
Stack rises 26 mm from 56, the biggest single stack step in the range.
61
6'2"–6'5"
188–196 cm
Tallest Sprint size, and the highest standover in the range at 835 mm.
Start with height. If two sizes overlap, use cycling inseam to choose.How to measure
Geometry
Stack, reach, and standover for all six Allez Sprint sizes, taken from the geometry table on Specialized's Allez Sprint Frameset page.
49
5'1"–5'4"
52
5'4"–5'7"
54
5'7"–5'10"
56
5'9"–6'0"
58
5'11"–6'2"
61
6'2"–6'5"
495'1"–5'4"
525'4"–5'7"
545'7"–5'10"
565'9"–6'0"
585'11"–6'2"
616'2"–6'5"
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 frameHelmet, light, lock, bottle, and a pant-leg strap. Size the bike here; buy the complete adult bike at a shop.

Giro
Everyday adult helmet with MIPS and a simple dial fit.
Universal Adult, 54–61 cm
View on AmazonPrice and availability on Amazon

NiteRider
Compact USB headlight for commuting and dusk rides.
Handlebar mount, 300 lumens
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Kryptonite
Hardened U-lock plus a cable for wheels or a locked-together pair.
Fits most road, gravel, and hybrid frames
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CamelBak
Insulated squeeze bottle for everyday rides.
Fits a standard ~73 mm cage
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Green Guru
Upcycled inner-tube strap that keeps a pant leg off the chain.
Adjustable hook-and-loop, about 16 in long
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Bike size calculator
Enter your height and inseam for a Specialized road bike, then compare the result with this Allez Sprint chart.
Sizing notes
Riders with the same height can need different sizes because inseam, torso length, flexibility, and preferred handling differ.
4 checks
Allez Sprint is the alloy race frame in the Allez line. Specialized publishes its geometry table from 49 to 61 cm, and there is no 44 cm Sprint.
Stack climbs faster than reach. 49 to 61 adds 97 mm of stack but only 33 mm of reach, so a larger size raises the front end more than it lengthens the cockpit.
The 54 to 56 step is the largest cockpit jump in the table at 11 mm of reach, against 5 mm from 49 to 52. If your height sits in the 175-183 cm overlap, compare both before choosing.
Specialized's Allez height chart is narrower at the bottom than the brand-level Specialized road chart: it puts 54 at 170-175 cm where the brand chart says 167-175 cm. Read the Allez chart for this frame.
Sources
Every number on this page comes from the sources below. Check the exact model year there before you buy.
Data reviewed:
Compare
A size label does not mean the same thing across brands. Compare published geometry before you choose.
Related guides
Once you have a starting size, compare this frame against the Specialized chart and the road guide.
Specialized bike size chart
Compare Allez Sprint against broader Specialized size guidance.
Road bike size chart
Check road sizing by height and inseam before choosing a frame.
Questions
Short answers for Specialized Allez Sprint sizing.
Start from Specialized's Allez height chart: 49 for 155–163 cm, 52 for 163–170 cm, 54 for 170–175 cm, 56 for 175–183 cm, 58 for 180–188 cm, and 61 for 188–196 cm. Then confirm standover and reach on the geometry table on this page.
54 cm is the middle of the six Sprint sizes: 537 mm of stack, 387 mm of reach, and 765 mm of standover, for riders from 170–175 cm on Specialized's Allez chart.
56 adds 21 mm of stack, 11 mm of reach, and 30 mm of standover over 54. That reach step is the largest in the range, so 56 is the size to test in person if your height sits in both ranges.
No. Specialized's Allez geometry table runs from 44 to 61 cm, but the Sprint table starts at 49 cm, and the height chart on the product page starts at 49 as well.