Salsa Mukluk Size Chart: Why the 2016 XS and Small Are Not the Same Fit

The Salsa Mukluk size chart for 2016 gives XS and Small the same 406 mm seat-tube length. That shared number does not make the two sizes equivalent. Their horizontal and vertical dimensions, original cockpit parts and guidance bands differ, making this a useful example of why an old frame’s seat-tube measurement cannot answer the whole fit question.

Read the Salsa Mukluk size chart across several rows

The X7 table gives XS an effective top tube of 565 mm, reach of 385.4 mm and stack of 587.5 mm. Small is listed at 585 mm, 402.5 mm and 596.8 mm respectively. These are concrete differences despite the identical seat-tube entry; compare them with a bicycle whose riding position you know rather than calling both frames a 406 mm size.

The original cockpit records also vary. XS uses a 50 mm stem and 165 mm cranks, while Small lists a 60 mm stem and 170 mm cranks. Those are catalogue build entries, not proof of the parts still installed on a used bicycle. Measure and identify its current cockpit before assuming the archive describes the contact points you will actually use.

Keep standover numbers attached to their measurement conditions

The printed standover values are close: 679.3 mm for XS and 679.5 mm for Small. The footnote specifies measurement vertically to the top of the top tube at a point 50 mm forward of the bottom-bracket center. A measurement taken elsewhere along a sloping tube is not the same comparison.

The geometry uses a 26 x 4.0-inch tyre with a 742 mm measured diameter and a Bearpaw fork described as equivalent to a Bluto at 25 percent sag. A different tyre or fork can change the real bicycle’s reference condition. Do not treat the printed standover as a guarantee for every later assembly on that frame.

Use overlapping height guidance to organize a test fit

X7’s rider-height guidance is 157–168 cm for XS and 165–175 cm for Small. The overlap itself shows why height alone cannot select between them. Bring the reach, stack and actual cockpit measurements into the comparison, then assess how the bicycle works for the rider rather than forcing a decision from one threshold.

The Sus GX1 archive repeats the main frame geometry but records a different original handlebar width from X7. Even a matching frame size therefore does not establish identical controls. When considering an old bike, separate its frame dimensions from adjustable or replaced components and have fit changes assessed alongside the required component compatibility.

Historical fit FAQ

What is shared by XS and Small in the seat-tube row?

Both are listed at 406 mm, although their reach, stack and effective top-tube measurements differ.

What are their listed reach values?

XS is 385.4 mm and Small is 402.5 mm in the 2016 table.

Where does the archive measure standover?

It measures vertically to the tube top at a point 50 mm forward of the bottom-bracket center.

Use the two sizes’ different reach and stack to decide what to compare in person. Confirm the installed fork, tyres and cockpit, then evaluate the actual riding position instead of letting one shared frame dimension choose the bicycle.

Handlebar and component differences also appear in Salsa Mukluk 2016 builds. For other families, browse the Salsa collection.

References: 2016 X7 archive; 2016 Sus GX1 archive.