These tyres are built around 120tpi casings and they're unusual in that they're front and rear specific. They're both dual-compound, the front one designed to be stickier for extra grip while the rear one is designed to be fast and durable. As you'll doubtless know, your rear tyre generally wears faster than the front one so the idea seems sound to us.
At 206g each the SLR1s are a touch heavier than Giant's claimed weight (200g) but they're still light and quick. There's no puncture-protection strip under the tread though, so they're not particularly resistant to flats. Don't get me wrong, they're not especially prone to punctures either – just don't be surprised if you pick one up from time to time.
Don't be put off by the lack of a tread pattern – you know that makes no difference, right? – these are grippy. I've had a little rear wheel slippage a couple of times when climbing very steep, damp hills out of the saddle but these have been well behaved while cornering in both wet and dry conditions. They're very capable in that respect.
The SLR1s are wearing okay too. A centreline wear indicator will show when they've reached the end of their working life but that's a way off. Despite the difference in compounds between the front and rear, the back tyre is still wearing a little faster than the front one although it's not as noticeable as usual. It does even things up a bit (and if the rear one does look like it'll wear out first, I'll still swap them over the same as usual).
The P-SLR1 is available in just one size – 700 x 23C with a foldable Kevlar bead.
Quick and grippy clinchers with reasonable durability.
road.cc test report
Make and model: Giant P-SLR1 Tyre
Size tested: Black - 700 x 23C
Tell us what the product is for, and who it's aimed at. What do the manufacturers say about it? How does that compare to your own feelings about it?
Giant say, "Giant P-SLR 1 road bike tyres feature 120 tpi casing and a unique off-set join enabling a centre line wear indicator. Lightweight, durable and fast.
FEATURES
- 120 tpi casing
- Centre line wear indicator
- Kevlar bead
- Sticky 60/64/60a front tread
- Durable and fast 64/70/64a rear tread
- 210g per tyre"
I'd go for them when lightweight is an important consideration – like racing, sportives and so on – rather than for everyday training or leisure.
Rate the product for quality of construction:
7/10
Rate the product for performance:
7/10
A good combination of lightweight and grippy although puncture resistance could be higher.
Rate the product for durability:
7/10
Pretty good for this style of tyre - but they're lightweight because there's not a whole lot of material used so they're not the best choice is durability is your primary consideration.
Rate the product for weight, if applicable:
8/10
Rate the product for value:
8/10
Tell us how the product performed overall when used for its designed purpose
Good performance. It's always a balancing act when it comes to tyres: grippy versus durable, light weight versus puncture resistance... These put in a good all-round performance.
Tell us what you particularly liked about the product
They're lightweight and fast, and they're grippy in a range of conditions.
Tell us what you particularly disliked about the product
They're not especially puncture resistant.
Did you enjoy using the product? Yes.
Would you consider buying the product? Maybe.
Would you recommend the product to a friend? Maybe.
Age: 41 Height: 190cm Weight: 75kg
I usually ride: My best bike is:
I've been riding for: Over 20 years I ride: Most days I would class myself as: Expert
I regularly do the following types of riding: time trialling, commuting, club rides, sportives, general fitness riding,
Let's face it, he'd still be leading the Giro right now if he was riding an aluminium frame with mid-spec components priced under two grand.
I had the same thought when I saw those numbers. The absolute amounts are just as important as the relative amounts, and these profits are...
I don't buy this "opportunity" theory. Every driver will at some point be the first one at the lights. Every driver will at some point have the...
Totally this. Go back 100-120 years and say "you know old chap the time will come when everyone has got one of these infernal cars" and perhaps...
I assumed they were in a chain gang so looking straight at them she may not have seen a large group.
Isn't that what Chump says in court?
In Australia, two Melbourne suburbs with car-hating notoriously Green Left councils have 18 mph (30 kph) speed limits, essentially forcing cars to...
More likely they're just responding to a very skewed version of the incident presented to them by Royal Parks at face value.
I guess the FLock Light works best if you have paler legs for it to light up. Mine are actually blue (like any true Scotsman's legs they only turn...
Helmet zealots' lack of logic and knowledge, as evidenced by your post I responded to, exasperate me I'm afraid.