B-Fast C1870

Hard PackLoose Over HardMedium

The B-Fast XC mountain bike tire from CST is driven by performance.

  The design was built for one thing- speed. The tightly packed center knobs eliminate rolling resistance so you can widen the lead, while widely spaced shoulder knobs bite in on technical sections. The B-Fast is available in wire and folding bead with EPS protection.

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Technology

Exceptional Puncture Safety

Exceptional Puncture Safety offers an added layer of proprietary rubberized poly-fiber material between the tread and the casing. The tight weave of this lightweight, puncture-resistant layer prevents foreign objects from penetrating the casing and damaging the tube.

B-Fast C1870

Hard PackLoose Over HardMedium
B-Fast C1870
B-Fast C1870

The B-Fast XC mountain bike tire from CST is driven by performance.

  The design was built for one thing- speed. The tightly packed center knobs eliminate rolling resistance so you can widen the lead, while widely spaced shoulder knobs bite in on technical sections. The B-Fast is available in wire and folding bead with EPS protection.


Specs


PART#
TIRE SIZE
ETRTO
TPI
BEAD
WEIGHT (grams)
COMPOUND
MAX PSI
TECHNOLOGY
26
PART#
TIRE SIZE
ETRTO
TPI
BEAD
Weight (G)
COMPOUND
MAX PSI
TECHNOLOGY
26X1.95
TB66561400
26X1.95
50-559
60
FOLDABLE
385
DUAL
65
EPS
26X2.00
TB72532000
26X2.00
50-559
60
FOLDABLE
470
DUAL
60
EPS/TLR
27.5
PART#
TIRE SIZE
ETRTO
TPI
BEAD
Weight (G)
COMPOUND
MAX PSI
TECHNOLOGY
27.5X1.95
TB90901200
27.5X1.95
50-584
60
FOLDABLE
430
DUAL
65
EPS
700
PART#
TIRE SIZE
ETRTO
TPI
BEAD
Weight (G)
COMPOUND
MAX PSI
TECHNOLOGY
700X40C
TB96274000
700X40C
40-622
60
WIRE
450
DUAL
75
EPS

Technology

Exceptional Puncture Safety

Exceptional Puncture Safety offers an added layer of proprietary rubberized poly-fiber material between the tread and the casing. The tight weave of this lightweight, puncture-resistant layer prevents foreign objects from penetrating the casing and damaging the tube.

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