Crumbs
Product Images
Description
Superior Performance on Loose, Rough, or Loamy Terrain
IRC Boken Doublecross Gravel Tire has a fast-rolling center tread for gravel and adventure riding paired with burly side knobs.
As its name implies, the Boken Double-cross is a dual-sport tire. It is a CX race tire and aggressive all-conditions gravel tire. The engineers at IRC optimized the read pattern for each size. This 42mm tire has a fast-rolling center tread for gravel and adventure riding paired with burly side knobs that hook up when the gnar gets gnarly.
With more bite than the file-tread Boken, the Boken Double-cross gives you superior performance on loose, rough, or loamy terrain.
Features:
- High-grip "Boken" compound
- Side blocks hook up in loose corners
- Closely spaced center tread rolls incredibly fast on hard surfaces
- Support knobs add grip while helping to float over the soft stuff
- Reinfornced sidewalls add flat protection and keep the tire from squirming when run at low pressure
- 700 x 42mm (622x42) ISO
- Tubeless Ready
- 60 TPI
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
The product weight specified is an approximate weight based on the manufacturer's specifications (if available) or our measurement of one or two examples. For most products, the weight will typically vary by 5% to 10%.
Specifications
Weight: 530 grams | |
Threads Per Inch: 60 | |
Tire Type: Tubeless Ready | |
Wheel Size: 700C/29" (ISO 622) | |
700 x 33mm - Black | Mfg PartNum: 190585 |
700 x 38mm - Black | Mfg PartNum: 190586 |
Tire Width: 38mm (1.5in) | |
Reviews
I have these in 700x42 on my Surly Midnight Special, which I treat like a gravel bike. Unfortunately, my local rides are about 50/50 gravel/pavement. They are absolutely amazing off road, fast rolling but great grip. Riding single track they feel as well planted as my mountain bike. But the tradeoff is I'm like 2-3 miles per hour slower on road versus my Gravelking SK. I'm going to leave them on for now, at least through winter, and reevaluate in Spring. They look awesome which is a nice bonus!
I was able to mount them tubeless with CushCore liners. It was my first time installing cushcore so it took me three times longer than it should have to mount a tire. But they set up fine with an air compressor and held air with sealant.
I was surprised, but they were very easy to mount. Have run them over sharp rocks in NC and in Montana. No punctures. Hold air better than any other tubeless tire that I have run on my grave bike. Tread pattern rolls well and grips we.
I have ridden both the 42mm and 38mm versions of this tire and they are excellent. The tread gives tons of grip in the loose stuff while providing low rolling resistance on the road. Before riding the Doublecross I had been on WTB Resolute (42mm), which I consider an excellent tire. The Doublecross are just a bit better in every category. More grip, less rolling resistance and longer wearing. I typically got 1,000-1,250 miles out of the WTB and I have gotten 2,000 miles out of the Doublecross. They are absolutely bulletproof.
Several friends also ride this tire and the one complaint that I have heard (from only one person) is that they lack "suppleness". I think that is fair. Something about the rubber compound just makes it a bit harder. To my mind and most other people that I have talked to, there isn't really a negative since they still have great grip in the dirt.
The 42mm is the only tire I am riding now. Probably the only reason to go down to the 38mm is if your bike can't fit the 42mm.
Mechanic's Corner
Articles will open in new tab.
