Description
Classic-framed bikes running a 4.00-18 rear have a shrinking pool of good tire options, and the Bridgestone Battlax BT46R is one of the few modern compounds still built specifically for this tube-type fitment.
The BT46R keeps the bias-ply construction that these older frames and suspensions were tuned around, but Bridgestone updated the compound and tread pattern so it grips better in the wet, wears more evenly, and does not feel vague at speed the way a lot of old-school rear tires can. It is a straightforward, no-drama replacement rather than a tire that asks the rider to relearn the bike.
Key specs and features:
- Bias-ply carcass construction matched to the original vintage sport and touring platforms it replaces
- Tubeless design on most sizes for simpler maintenance and easier repairs than older tube-type equivalents
- Successor to the long-running BT45, developed with a modern tread compound and profile
- Tuned tread pattern intended to improve wet and dry grip over the outgoing BT45 design
- Sidewall styling that keeps the classic look expected on a vintage-era machine
- Consistent, predictable steering response suited to relaxed sport and touring riding
- Sized 4.00-18 with a 64H load/speed rating, built as a tube-type rear tire
Because this is a tube-type only casing, it must be run with an appropriate inner tube and rim band rather than mounted tubeless, even on a wheel that could otherwise seal. Double-check tube compatibility for your 18-inch rim before installation, and pair with a matching BT46 front for the most balanced feel.
