Norco Threshold A (alloy) geometry
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Size 55.5
Render
Align
Geometry
| Size | 45 | 48 | 50.5 | 53 | 55.5 | 58 | 60 |
|---|---|---|---|---|---|---|---|
| Stack mm | 523 | 532 | 544 | 562 | 579 | 599 | 619 |
| Reach mm | 360 | 365 | 369 | 377 | 386 | 395 | 404 |
| Head tube angle ° | 70.0 | 70.0 | 70.5 | 71.5 | 72.25 | 72.5 | 72.75 |
| Seat tube angle ° | 75.5 | 75.0 | 74.5 | 74.0 | 73.75 | 73.5 | 73.25 |
| Head tube length mm | 95 | 105 | 115 | 130 | 145 | 165 | 185 |
| Seat tube mm | 455 | 480 | 505 | 530 | 555 | 580 | 605 |
| Chainstay mm | 425 | 425 | 425 | 425 | 425 | 425 | 425 |
| BB drop mm | 67.5 | 67.5 | 67.5 | 67.5 | 67.5 | 67.5 | 67.5 |
| Stack to reach | 1.45 | 1.46 | 1.47 | 1.49 | 1.50 | 1.52 | 1.53 |
| Effective top tube mmi | 495 | 508 | 520 | 538 | 555 | 572 | 590 |
Size55.5key specs
Stack-to-reach (size 55.5)1.50More relaxed (taller and shorter) than 50% of gravel frames in the database at comparable sizes.
Closest geometry matches (size 55.5)
Matched by stack, reach and head tube angle.
More from Norco
Nearest size to the Threshold A 55.5.