Borrowing design inspiration and technology from our M29 downhill bike, utilizing its bottom link-driven rear shock and suspension design, we have created a mountain bike with plush travel for the roughest of descents and a firm pedal platform when needed. We've positioned the rear shock low down and centered in the frame, allowing the Tracer to descend and handle terrain impeccably.

VERSATILITY

TRUE TO TRAIL

FLIP CHIP ADJUSTMENT

THE JS TUNED TRAIL LINK
Rolling on super-fast 29” wheels, the Primer 29 will give you trail-flattening speed over any obstacle, both on challenging climbs and technical descents. In short, the Primer 29 is the ultimate all-around premium trail bike. It could be the only mountain bike you’ll ever need.
BUILD | FACTORY FRAME & SHOCK | |
WEIGHT | 3.11 kg // 6 lbs 14 oz (Size Medium) | |
FRAME | Primer 29" Optimized Layup Monocoque UD Carbon Front and Rear Triangle, Carbon Top Link, Ti Hardware, Internal Shift, Dropper Post and Brake Routing. ISCG05 Mounts, Flak Guard Armour, 140mm (5.5") Travel | |
SHOCK | FOX Factory Float X, 210mm x 50mm (140mm Travel), 2-position (Open/Trail) |
BASED OFF HIGH SETTING

HIGH SETTING | SM | MD | LG | XL | |
SEATTUBE LENGTH | 408mm / 16.08"> | 431.8mm / 16." | 451mm / 17.8" | 476mm / 18.7" | |
EFFECTIVE TOPTUBE | 578mm / 22.8" | 608mm / 24" | 636mm / 25" | 673mm / 26.5" | |
STACK | 612mm / 24" | 612mm / 24" | 622mm / 24.5" | 640mm / 25.2" | |
REACH | 411mm / 16.2" | 442mm / 17.4" | 467mm / 18.4" | 597mm / 19.6" | |
BB HEIGHT | 346mm / 13.6" | 46mm / 13.6" | 346mm / 13.6" | 346mm / 13.6" | |
BB DROP | 29mm / 1.1" | 29mm/1.1" | 29mm / 1.1" | 29mm / 1.1" | |
HEADTUBE LENGTH | 100mm / 3.5" | 100mm / 3.5" | 100mm / 3.5" | 100mm / 3.5" | |
HEADTUBE ANGLE | 65.7° | 65.7° | 65.7° | 65.7° | |
SEATTUBE ANGLE (EFFECTIVE) | 75° | 75° | 75° | 75° | |
STANDOVER HEIGHT | 815mm / 32" | 815mm / 32" | 815mm / 32" | 815mm / 32" | |
CHAINSTAY LENGTH | 440mm / 17.3" | 440mm / 17.3" | 440mm / 17.3" | 440mm / 17.3" | |
WHEELBASE | 1170mm / 46" | 1200mm / 47.2" | 1229mm / 48.4" | 1267mm / 50" | |
LOW SETTING | SM | MD | LG | XL | |
SEATTUBE LENGTH | 408mm / 16" | 431mm / 17" | 451mm / 17.8" | 475.5mm / 18.8" | |
EFFECTIVE TOPTUBE | 580mm / 22.8" | 610mm / 24" | 639mm / 25.1" | 675mm / 26.6" | |
STACK | 616mm / 24.3" | 617mm / 24.3" | 626mm / 24.7" | 645mm / 25.4" | |
REACH | 405mm / 16" | 435mm / 17" | 461mm / 18" | 491mm / 19.3" | |
BB HEIGHT | 339mm / 13.3" | 339mm / 13.3" | 339mm / 13.3" | 339mm / 13.3" | |
BB DROP | 36mm / 1.4" | 36mm / 1.4" | 36mm / 1.4" | 36mm / 1.4" | |
HEADTUBE LENGTH | 90mm / 3.5" | 90mm / 3.5" | 90mm / 3.5" | 90mm / 3.5" | |
HEADTUBE ANGLE | 64.8° | 65.1° | 65.1° | 65.1° | |
SEATTUBE ANGLE (EFFECTIVE) | 74° | 74° | 74° | 74° | |
STANDOVER HEIGHT | 810mm / 31.9" | 809mm / 32" | 819mm / 32" | 822mm / 32.4" | |
CHAINSTAY LENGTH | 441.5mm / 17.4" | 441.5mm / 17.4" | 441.5mm / 17.4" | 441.5mm / 17.4" | |
WHEELBASE | 1171mm / 46" | 1201mm / 47.3" | 1230mm / 48.4" | 1267mm / 49.9" |
