THE ULTIMATE ALL-AROUND GRAVEL BIKE
Fun things happen when a bike is designed to be as versatile as its rider. Waheela C is a carbon-framed drop bar bike with an adjustable geometry, unrivaled ride quality, suspension-corrected geometry for a suspension fork, and enormous tire clearance for 700c x 54mm, 650b x 54mm, or 29" x 2.1" tires. It also has extra frame and fork mounting points for bottles and racks, easily accessible internal cable routing options, compatibility for 1x or 2x electronic or mechanical drivetrains, and the ability to run a dropper post. When the same bike can be found racing Unbound, riding Tour Divide, hopping CX barriers, loaded up for weekend overnighters, and cruising weekly group rides, the performance-first versatility speaks for itself.
Call it three bikes in one. Call it a quiver killer. Call it the ultimate all-around gravel bike.
Build Spec / GRX 600
| Frame | Otso custom butted 4130 Chromoly tubing with Tuning Chip™️ dropout system | |
| Fork | Lithic full carbon fork, 12mm thru-axle | |
| Headset | Wolf Tooth Headset, orange | |
| Rear derailleur | Shimano GRX 810, 11 speed | |
| Front derailleur |
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| Shifters | Shimano GRX 800 | |
| Cassette | Shimano SLX, 11-40T, 11-speed | |
| Brakes | Shimano GRX 400 Hydraulic | |
| Cranks | Shimano GRX 800 | |
| Bottom bracket | Shimano English threaded BSA, Ø68mm | |
| Handlebar | Lithic Corundum aluminum compact drop with 16° flare: 46cm XL | |
| Bar Tape | Wolf Tooth Supple Lite, black | |
| Stem | 6061 aluminum: 90mm | |
| Seatpost | 6061 aluminum | |
| Seatpost Clamp | Wolf Tooth 31.8mm, orange | |
| Seat | WTB Silverado | |
| Wheels | SUNRingle Duroc G30 Comp 700c, tubeless ready, 26mm inner width, 100x12 thru-axle front, 142x12 thru-axle rear, centerlock brake interface | |
| Tires | Schwalbe G-One RS | |
| Chain | Shimano 11spd | |
| Frame Size | 58 | |
Frame Spec
| Bottom bracket standard | 68mm BSA threaded | |
| Q-factor |
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| Maximum chainring size | 2x: 53T round / 31T round; 1x: 50T round or 46T oval | |
| Minimum Chainline | 47.5mm | |
| Headset |
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| Seatpost diameter | Ø27.2mm | |
| Seatpost clamp | Ø29.8mm | |
| Front/rear hub standard | 100x12mm thru axle / 142x12mm thru axle | |
| Front/rear axle | Ø12x125mm front, TP=1.5, TL=15mm / Ø12x180mm rear, TP=1.5, TL=12mm | |
| Derailleur hanger | Tuning Chip Right Dropout | |
| Rear brake (rotor) | Flat mount, 74mm post mount available(160mm) | |
| Front brake (rotor) | Flat mount native, 74mm post mount adapter available (160mm) | |
| Fork axle-to-crown | 420mm, suspension corrected up to 40mm travel | |
| Fork offset | 47mm | |
| Bare frame weight (M) | 5.53 lbs / 2509 g (size 56cm) | |
| Fork weight (Lithic Hiili 420) | 490g | |
| Tire clearance (frame) | 700c & 650b x 40mm at 420mm chainstay position; 700c & 650b x 50mm at 430/440mm chainstay positions | |
| Tire clearance (fork) | Max clearance 29" x 2.1" (54-622) | |
| Frame Bag Dimensions | Small Medium Large X-Large | |
| Seatpost Insertion Depth | 52cm: 310mm; 54cm: 290mm; 56cm: 290mm; 58cm: 310mm; 60cm: 330mm | |
| Max weight (rider + gear) | 275 lbs | |
| Max spacer stack under stem | 40mm | |
| Max spacer stack above stem | 10mm | |
| Max stem bolt torque |
6 Nm |
Geometry
| 49cm | 52cm | 54cm | 56cm | 58cm | 60m | |
| Recommended rider height | 4'11"-5'2" | 5'2"-5'4" | 5'4"-5'8" | 5'8"-6'0" | 6'0"-6'2" | 6'2"-6'5" |
| Recommended rider inseam | 25"-29" | 28"-30" | 30"-33" | 32"-34" | 33"-35" | 34"-37" |
| Effective top tube | 510mm | 530mm | 545mm | 565mm | 580mm | 600mm |
| Nominal head tube angle | 70° | 70.5° | 71° | 71.5° | 72° | 72° |
| Tuning Chip-induced head/seat tube angle change from middle position | ±0.25° | ±0.25° | ±0.25° | ±0.25° | ±0.25° | ±0.25° |
| Head tube length | 87mm | 95mm | 115mm | 140mm | 165mm | 185mm |
| Nominal seat tube angle | 75° | 74.5° | 74° | 73° | 72.5° | 72° |
| Seat tube length | 400mm | 505mm | 530mm | 550mm | 570mm | 590mm |
| Bottom bracket drop | 58-62mm | 68-72mm | 68-72mm | 68-72mm | 68-72mm | 68-72mm |
| Chainstay length | 410-430mm | 420-440mm | 420-440mm | 420-440mm | 420-440mm | 420-440mm |
| Wheelbase | 1000-1020mm | 1017-1037mm | 1023-1043mm | 1028-1048mm | 1032-1052mm | 1046-1066mm |
| Trail | 70mm | 71mm | 70mm | 67.5mm | 65mm | 65mm |
| Fork offset | 47mm | 47mm | 47mm | 47mm | 47mm | 47mm |
| Rigid fork axle to crown length | 420mm | 420mm | 420mm | 420mm | 420mm | 420mm |
| Stack | 532mm | 549mm | 570mm | 596mm | 622mm | 641mm |
| Reach | 368mm | 378mm | 381mm | 383mm | 384mm | 392mm |
| Standover | 677mm | 760mm | 780mm | 800mm | 820mm | 840 mm |