2026 Niner Bikes RLT 9 Apex 53cm
Build
700C/29 in × 45 mm
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Niner Bikes RLT 9
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 578mm |
| Reach | 374mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 490mm |
| Top Tube Length, Effective/Horizontal HT Top | 545mm |
| Top Tube Slope | 11.9deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 145mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 281mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 428.5mm |
| Front-Center | 599mm |
| Front-Center Horizontal | 594.5mm |
| Wheelbase | 1023mm |
| Fork Offset/Rake | 45mm |
| Trail | 75mm high |
| Mechanical Trail | 70.9mm |
| Wheel Flop | 23.1mm |
| Standover Height | 753mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 73mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 111mm |
Apex Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 45mm |
| Tire Outer Diameter | 712mm |
| Bike Length with Tires | 1735mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
| Features | Single-speed capable |
Published Sizing Recommendations
| Height | 5 ft 5 in to 5 ft 9 in |
Source:https://www.ninerbikes.com/rlt-9-apex-xplr/