BikesOpusSpark 1 / 2 / 4

Opus Spark 1 / 2 / 4 geometry

Loading 3D view…
178 cm · 5 ft 10 in
auto85 cm · 33.5 in
Size M

Render Align 50%

Geometry

SizeXXSXSSMLXL
Stack mm533550565582598617
Reach mm362363370377385390
Head tube angle °70.571.071.572.072.572.5
Seat tube angle °74.574.073.573.072.572.0
Head tube length mm114129144159174194
Seat tube mm470500520540560580
Chainstay mm435435435435435435
BB drop mm686868686868
Stack to reach1.471.521.531.541.551.58
Effective top tube mmi510521537555574590
SizeMkey specs
Stack-to-reach (size M)1.54
More relaxed (taller and shorter) than 85% of gravel frames in the database at comparable sizes.

Closest geometry matches (size M)

Matched by stack, reach and head tube angle.

More from Opus

Nearest size to the Spark 1 / 2 / 4 M.

Compare with another frame

Opus geometry chart · Frame stack and reach to the head tube top · Size finder assumes a 100mm stem on 20mm spacers · Report an error