Two foldable 26 × 1.95 semi-slick city tires — ETRTO 50-559 — with a Kevlar bead, a 30 TPI casing, a 3 mm nylon anti-puncture layer and reflective sidewalls. $48.91.
The reflective sidewall is the feature, and it is not cosmetic
“Stand out at dusk with reflective sidewalls… extra visibility in low light.”
A reflective sidewall puts a moving circle of light on each side of the bike, which is the one thing a rear lamp cannot do: it makes a cyclist visible to a car approaching from a side road. The lights shelf on this site compares lux and lumens, both of which describe light thrown forward.
Two tires in this survey have it: this one and Fincci’s own 700×35c gravel tire, already published on this shelf.
It is the slick half of a matched pair
Fincci sells the same wheel size with a knobby tread, reviewed on this page, and the two are a clean choice:
this one, semi-slick
the MTB
ETRTO
50-559
53-559
Casing
30 TPI
27 TPI
Belt
3 mm (0.12 in) nylon
3 mm (0.12 in) nylon
Tread
semi-slick
3 mm (0.12 in) knobs
Sidewall
reflective
—
Price
$48.91
$45.91
Same protection, same bead, same wheel. The question is only where the bike goes — and this listing says so itself: “a great slick upgrade for a 26 inch mountain bike used around town”.
That sentence is the most useful one on the page. A 26-inch mountain bike ridden to work on knobby tires is slow and loud for no benefit, and this is the part that fixes it.
Three millimeters of nylon on a city tire
The same thick belt as the knobby version, and on a town bike it is arguably better placed: glass and grit are a street problem rather than a trail one. “Helps guard against glass, grit and sharp debris on city streets, reducing the chance of common flats for fewer roadside stops.”
What the listing does not give is a weight. Its knobby stablemate is 4.2 lb (1.9 kg) the pair, and a semi-slick of the same construction should be a little lighter — but “should be” is not a figure.
30 TPI, and it asks you to check the sidewall
“Foldable 26 × 1.95 inch tires (ETRTO 50-559) for 26 inch wheels, ideal for hybrid, commuter, electric and road bikes… Check your tire sidewall.”
The ETRTO in the text and an instruction to verify it. That is exactly what the buying advice on this shelf asks for, and only three of the eight tires here do both.
Thirty TPI is coarse — tough, slow, cheap to make — and consistent with a 3 mm (0.12 in) belt. This is a durable tire, not a fast one.
What is not published
No weight, no pressure range, no tread depth, no compound, no load rating, no tubeless statement. The folding bead and “durable 30 TPI casing” place it as a clincher, and the last bullet is about Fincci being a British brand.
Availability
Read on the day this page was built: $49 at the American Amazon shop.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
Prices quoted in this text are dated readings and can differ from the live price in the buy box.
The questions riders ask
Will it make my mountain bike faster on the road?
Noticeably, yes — and the listing says so: "a great slick upgrade for a 26 inch mountain bike used around town". Knobby tread on tarmac is slow, loud and gives no grip a slick does not. What this will not change is the casing: at 30 TPI with a 3 mm (0.12 in) belt it is a tough tire rather than a quick one, so expect quieter and easier rather than racing.
Why is its ETRTO 50-559 when the knobby Fincci is 53-559?
Because the ETRTO width measures the casing, and knobs make a tire measure wider than a slick of the same inch size. Both are 26 × 1.95; both fit a 559 mm (22 in) rim, which is the number that has to match. The width figure is a clearance guide, and a 50 mm (1.97 in) casing needs slightly less room than a 53 mm (2.09 in) one.
Are reflective sidewalls worth paying for?
They cover an angle nothing else does. A rear lamp is visible from behind and a front lamp from in front; a reflective sidewall makes two moving circles of light visible from the side, which is where a car emerging from a junction looks. The lights shelf on this site compares lux and lumens, and both describe light thrown forward — this is the complement to them, for three dollars over the knobby version of the same tire.
Who buys this one, among MTB and gravel tires
A 26-inch mountain bike or hybrid commuting in traffic and at dusk
If this is not it: the rest of the MTB and gravel tires
At $49, it sits +1 % against the $48 median of the 10 models in this category published here.
The recorded price, among MTB and gravel tires
Details checked on October 31, 2026.
Sources
Specifications: the manufacturer sheet for MTB and gravel tires and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
