Pronghorn Endurance Road Bike Materials
At Geary Bikes, we believe in the beauty and durability of steel. The result? A bike that’s timeless in it’s appearance, built to last a lifetime, offers a smooth and predictable ride, and looks really good doing it.
Pronghorn Endurance Road Bike Sizing and Geometry
The best bike out there is the one that fits you right, and limited stock sizing can make getting the right fit a challenge. That's why we offer an expanded range of frame sizes designed with you in mind.
Metric | 50 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 62 |
---|---|---|---|---|---|---|---|---|---|---|---|
Seat tube | 445 | 460 | 475 | 490 | 505 | 520 | 535 | 550 | 565 | 580 | 610 |
Seat tube angle | 74 | 74 | 74 | 73.7 | 73.7 | 73.7 | 73.5 | 73.5 | 73.5 | 73.5 | 73.5 |
Head tube length | 102.1 | 123.2 | 131.8 | 143.5 | 159.4 | 169.9 | 183.4 | 191.9 | 212.8 | 223.2 | 244 |
Head angle | 71.5 | 71.5 | 72 | 72 | 73 | 73 | 73 | 73.5 | 73.5 | 73.5 | 73.5 |
Effective top tube | 513 | 520 | 525 | 535 | 545 | 555 | 565 | 575 | 585 | 595 | 615 |
Bottom bracket drop | 78 | 78 | 78 | 78 | 78 | 78 | 75 | 75 | 75 | 75 | 75 |
Chainstay length | 423 | 423 | 423 | 423 | 423 | 423 | 423 | 423 | 423 | 423 | 423 |
Fork Offset | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 | 51 |
Fork A/C | 383 | 383 | 383 | 383 | 383 | 383 | 383 | 383 | 383 | 383 | 383 |
Trail | 64.5 | 64.5 | 61.2 | 61.2 | 54.7 | 54.7 | 54.7 | 51.5 | 51.5 | 51.5 | 51.5 |
Wheelbase | 981.8 | 989.7 | 990.4 | 997.7 | 998 | 1008.2 | 1017.5 | 1022.3 | 1032.3 | 1042.3 | 1062.3 |
Standover | 715 | 731.3 | 742.8 | 756 | 769.4 | 780.5 | 794.5 | 805.8 | 829.5 | 833.1 | 856.2 |
Reach | 361 | 362.3 | 364.4 | 366.9 | 372.5 | 379.5 | 384.3 | 391.3 | 395.4 | 402.4 | 416.5 |
Stack | 530 | 550 | 560 | 575 | 590 | 600 | 610 | 620 | 640 | 650 | 670 |
Approx saddle height ± 50mm | 600 | 625 | 650 | 675 | 700 | 730 | 740 | 770 | 790 | 800 | 825 |
Rec Stem Length | 60 | 70 | 80 | 90 | 90 | 90 | 100 | 100 | 100 | 100 | 110 |