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.


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


TIRE SIZE
ETRTO
TPI
BEAD
WEIGHT (grams)
COMPOUND
MAX PSI
TECHNOLOGY
26
TIRE SIZE
ETRTO
TPI
BEAD
Weight (G)
COMPOUND
MAX PSI
TECHNOLOGY
26X1.95
26X1.95
50-559
60
FOLDABLE
385
DUAL
65
EPS
26X2.00
26X2.00
50-559
60
FOLDABLE
470
DUAL
60
EPS/TLR
27.5
TIRE SIZE
ETRTO
TPI
BEAD
Weight (G)
COMPOUND
MAX PSI
TECHNOLOGY
27.5X1.95
27.5X1.95
50-584
60
FOLDABLE
430
DUAL
65
EPS
700
TIRE SIZE
ETRTO
TPI
BEAD
Weight (G)
COMPOUND
MAX PSI
TECHNOLOGY
700X40
700X40
40-622
60
WIRE
510
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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