Pure Cycles Original gear ratio: the 44T, 15T and 16T entries

2026-11-07

The Pure Cycles Original gear ratio can be calculated from the tooth counts on its detailed 671003 specification. The sheet names a 44T chainring, a 15T sprocket and a 16T freewheel. Keep the two rear entries separate: they produce different arithmetic ratios and describe different listed hardware.

Calculate the Pure Cycles Original gear ratio explicitly

Dividing the front tooth count by the rear tooth count gives 44 ÷ 15, approximately 2.93, for the listed sprocket. Using the listed freewheel gives 44 ÷ 16, exactly 2.75. These are calculations from published counts, not measured speeds or results of riding either arrangement.

With the same 44T front entry, the 15T calculation is about 6.7 percent higher than the 16T calculation. That describes the relationship between these two ratios. It does not mean a rider will travel 6.7 percent faster on a particular route, or establish how either setup will feel on a hill.

Read tooth counts separately from chain dimensions

The chainring is listed as alloy, 44T × 1/2 inch × 1/8 inch. Both rear entries also include 1/2-inch × 1/8-inch notation. The chain line identifies K.M.C. S1, those same nominal dimensions and 96 links. The tooth count used in the calculation is a different field from those dimensions or the chain's link count.

The crankset line gives a three-piece alloy crankset with 170 mm arms. That is another measurement, not an additional factor in the simple 44-to-rear-tooth calculation. Do not multiply the ratio by the crank length and present the result as the bicycle's speed.

Check which rear entry belongs to the actual bicycle

The local example is Pure Cycles Original Bike — Juliet. Confirm the fitted chainring and rear hardware before using these catalogue calculations for an owner bicycle. Replaced parts could change the relevant tooth counts.

The photograph shows where the chain joins a front chainring to one visible rear sprocket. No teeth have been counted from that separate bicycle. Read the Pure Cycles background article for the broader model range.

Separate unidentified white dropbar bicycle with a single visible rear sprocket and apparent rim brakes — Unidentified white bicycle with drop handlebar, apparent rim brakes and one visible rear sprocket. Mechanical comparison, not Pure Cycles Original Juliet or evidence of its dimensions, parts or operating mode. Photograph: erik odiin. Photograph source (https://negativespace.co/minimal-white-road-bike/); Erik Odiin (https://unsplash.com/@odiin); Creative Commons CC0 1.0 Universal Public Domain Dedication (https://creativecommons.org/publicdomain/zero/1.0/deed.en).

FAQ: using the calculated ratios

Is 44 divided by 16 approximately 2.93?

No. It is 2.75; approximately 2.93 comes from dividing 44 by 15.

Do these numbers predict a riding speed?

No. They are ratios of published tooth counts, without a cadence or measured speed result.

Does 96 links mean 96 available gears?

No. The link count belongs to the chain specification, not the number of selectable ratios.

Continue comparing documented configurations in the Pure Cycles topic.

Manufacturer references: Original 671003 specification (https://www.purecycles.com/pages/original-specs-671003); Original product and geometry (https://www.purecycles.com/products/original-21154).

Photograph credits and permissions

Photograph 1

Original title: Minimal White Road Bike

Creator: erik odiin (Erik Odiin); creator URI: https://unsplash.com/@odiin; primary photo attribution: https://unsplash.com/photos/white-fixie-bike-LWv3bsFvpPc

Original source URI: https://negativespace.co/minimal-white-road-bike/

License / permission: CC0 1.0 Universal

License / permission URI: https://creativecommons.org/publicdomain/zero/1.0/deed.en

Modification notice: Exact source-supplied 1062×708 JPEG preserved without changes. The source Download Free Stock Photo link supplies the file named thumb-1.jpg; no camera-original or highest-resolution claim. No crop, resize, recompression or metadata removal.

Source disclaimer: No individual-photo copyright notice supplied. NegativeSpace footer ©2026 NegativeSpace.co is a website notice, not photographer copyright. The provider says it vets photographs but users remain responsible for the validity and safety of reuse. CC0 makes no warranties; other rights may apply; no endorsement is implied. The NegativeSpace page was published on May 17, 2017 and modified on September 23, 2018; the primary Unsplash photo page was published on July 24, 2017. These different publication dates do not establish the capture date or the bicycle model year. This is a different unidentified road-style bicycle, not proof of any selected native product, current model or year, measurements, parts, fit, load, safety, condition or compatibility.