Opus Spark 1 / 2 / 4 geometry
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auto
Size M
Render
Align
Geometry
| Size | XXS | XS | S | M | L | XL |
|---|---|---|---|---|---|---|
| Stack mm | 533 | 550 | 565 | 582 | 598 | 617 |
| Reach mm | 362 | 363 | 370 | 377 | 385 | 390 |
| Head tube angle ° | 70.5 | 71.0 | 71.5 | 72.0 | 72.5 | 72.5 |
| Seat tube angle ° | 74.5 | 74.0 | 73.5 | 73.0 | 72.5 | 72.0 |
| Head tube length mm | 114 | 129 | 144 | 159 | 174 | 194 |
| Seat tube mm | 470 | 500 | 520 | 540 | 560 | 580 |
| Chainstay mm | 435 | 435 | 435 | 435 | 435 | 435 |
| BB drop mm | 68 | 68 | 68 | 68 | 68 | 68 |
| Stack to reach | 1.47 | 1.52 | 1.53 | 1.54 | 1.55 | 1.58 |
| Effective top tube mmi | 510 | 521 | 537 | 555 | 574 | 590 |
SizeMkey specs
Stack-to-reach (size M)1.54More 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.